Altium Schematic Designer

Board_Reference	MB1191
Board_PCB_Revision	C
Board_Name	STM32F746G-DISCO
Board_Document_Date	11/10/2022
Board_Assembly_Revision	03
Active Variant	Base (all components)

Design Summary

ES.1 Design Overview

The STM32F746G-DISCO (MB1191 Rev C, assembly revision 03) is a feature-rich discovery/evaluation board built around the STM32F746NGH6U — an ARM Cortex-M7 microcontroller in a 216-pin TBGA package. The design is organized as a 13-sheet hierarchical schematic containing 360 components, 2,802 pins, and 348 nets. Two project variants are defined (F746NGH6 and F750N8H6), differing primarily by a processor alternate-part swap at U5 and a set of DNP passives and jumpers.

The board integrates a broad set of peripherals representative of an STM32F7 reference platform:

Display & HMI: 4.3-inch TFT LCD (HT043C, 480×272) with capacitive touch and LED backlight driver (STLD40DPUR), plus DCMI camera connector (P1, 30-pin FPC).
Audio: Wolfson WM8994 multi-channel audio hub CODEC with dual MEMS microphones (IMP34DT05TR), RCA audio output connector (CN1).
Connectivity: 10/100 Ethernet via LAN8742A RMII PHY with RJ45 MagJack (HR961160C), USB OTG Full-Speed (MCU-integrated PHY), USB OTG High-Speed via USB3320C ULPI PHY, and on-board ST-Link/V2-1 debugger using a secondary STM32F103CBT6.
Memory: 128 Mbit QSPI NOR flash (MT25QL128ABA, Micron) and 128 Mbit SDRAM (MT48LC4M32B2B5, 4M×32) on the FMC bus — only the lower 16 data bits are connected to the processor, with D16–D31 pulled low.
Expansion: Arduino-compatible headers (CN4–CN7), external I2C camera/expansion connector (CN2), and a 4-pin JTAG header (CN8) for external debug access.

The design includes 40 designer-annotated signal nets with impedance specifications for differential pairs (100 Ω for Ethernet, 90 Ω for USB HS) and class markings for QSPI, SDRAM, RMII, LCD, and DCMI interfaces.

ES.2 Power Supply Architecture

The board uses a multi-rail LDO-based power architecture with 13 identified power rails (plus several sub-rails for USB VBUS switching). No switching regulators are present — all voltage conversion is via linear regulators, which is appropriate for a low-power evaluation board but limits the available current budget and efficiency:

VIN → 5V (E5V): LD1117S50TR (U6) — 5V, 800 mA LDO, providing the main 5V rail from external power input.
5V → 3.3V: LD39050P (U7) — ultra-low-drop 500 mA LDO, the primary 3.3V supply feeding the STM32F7, SDRAM, QSPI flash, Ethernet PHY, LCD, audio CODEC, and logic gates.
3.3V → 1.8V: LD1117S18TR (U13) — 800 mA LDO providing the 1.8V core supply for the audio CODEC and USB HS PHY.
ST-Link domain: LD3985M33R (U12) provides a separate 3V3_ST_LINK rail for the STM32F103 debugger MCU, isolated from the target power domain. An ST890CDR (U8) high-side switch with 1.2A current limiting manages 5V_ST_LINK / 5V_USB_ST_LINK power switching.
USB VBUS switching: STMPS2141STR (U16) and STMPS2151STR (U17) provide current-limited VBUS power to the USB FS and HS host ports respectively.
LCD backlight: STLD40DPUR (U10) drives the TFT backlight LEDs with a separate BLVDD/BLGND domain.

The STM32F746 VDD and VDDA rails, as well as the ADC VREF+ reference, are present as distinct nets but their regulators' input-to-output relationships are not fully traceable from the schematic data alone (Tomachie reported 0 regulators identified at the top-level, likely because the regulator models lack proper Input/Output pin typing — see library quality findings below). In a production design, the power tree should be explicitly documented with sequencing requirements, especially given the 1.8V rail dependency of the USB HS PHY and audio CODEC.

ES.3 Design-for-Test and Design Findings

Test Point Coverage — Critical Gap: The design contains only 3 test points total (TP1, TP2 on the STM32F7 sheet for unknown nets, and TP3 for TP_PH15 on the Audio sheet). None of the 16 power rails have test points — not even the primary 3.3V, 5V, or 1.8V rails. For any ICT or bed-of-nails production testing, this is a fundamental deficiency. Every power rail should have at least one dedicated test point pad for go/no-go voltage verification at board-level test.

Oscillator Output Enable: Both 24 MHz (X1) and 25 MHz (X2) oscillators have pull-up resistors on their enable pins but no test points. Production boundary scan and analog test requires the ability to disable oscillators via fixture probes to prevent clock interference during in-circuit measurements.

IC Enable Pin Access: Three ICs lack proper test point access on their enable pins: U7 (LD39050P, EN hard-wired to VCC with no series resistor for fixture override), U16 (STMPS2141STR, active-low enable with pull-up but no TP), and U10 (STLD40DPUR, EN with pull-up but no TP). In a production context, being unable to disable the main 3.3V regulator from a test fixture is a significant limitation.

Indicator Testability: None of the 7 LEDs (LD1–LD7) have test point access on their control lines. Two indicators (LD4, LD5) are transistor-driven, meaning their control nets are buried behind series resistors. This prevents automated LED verification in ICT without either JTAG-driven GPIO toggling or dedicated test points.

Serial Interface Test Points: 12 serial interface signals lack test points, including all I2C buses (EXT_SCL/SDA, LCD_SCL/SDA) and the SWD debug lines (SWCLK, SWDIO, SWO, NRST) to the main STM32F7. The ST-Link SWD (STM_JTCK, STM_JTMS) does have connector access via CN8 but no dedicated test pads.

Missing I2C Pull-ups: Two I2C nets (NOLBL_R83_2_2 and NOLBL_R76_2_2) — which appear to be nets on the target side of series resistors on the Audio CODEC/LCD I2C bus — have no detectable pull-up resistors. While the primary bus side (LCD_SDA/LCD_SCL) has 2.7 kΩ pull-ups, the topology through series resistors means these isolated net segments may not have adequate pull-up drive, depending on how the series resistors partition the bus. This warrants verification against the WM8994 and HT043C datasheet requirements.

EMC — Connector Shell Grounding: Three shielded connectors (CN9 Ethernet RJ45, CN13 USB Micro-AB, CN14 USB Mini-B) have their shell/shield pins connected directly to digital GND. Best practice is to route shield current through a separate CHASSIS_GND net or a 0-ohm/RC filter network, giving the PCB layout engineer explicit control over the shield current return path and preventing high-frequency common-mode currents from coupling into the digital ground plane.

Library Model Quality — Systemic Issue: 19 of 22 ICs (86%) received a Grade F for library model quality, with every pin marked as Passive and no electrical type differentiation. Only U14 (STM32F103CBT6) earned a Grade A. This means the schematic symbols are essentially “dumb” — they carry no electrical intent information for ERC checking. This is characteristic of vendor-supplied Altium libraries (common in ST reference designs) that use generic symbols. While functionally harmless for a reference/eval board, it severely limits the effectiveness of automated ERC, DFT analysis, and design rule checking. The Tomachie report itself was unable to identify regulator input/output relationships or perform BSDL-based boundary scan analysis partly because of this.

Pin Connectivity: One unconnected pin (U5_H1, PH1-OSC_OUT) was flagged without a NO_ERC marker — this is normal if the second oscillator output is unused but should be explicitly marked. Two NC pins on U1 and U2 (74LVC1G04SE) are connected to nets due to a library error where pin 1 (NC) shares a physical location with pin 2 (A), creating false connections in the netlist.

QSPI Flash Programmability: The QSPI interface to U3 (MT25QL128ABA) has no test points on CLK, NCS, or D0. This means on-board ISP (in-system programming) of the flash requires either a fully operational MCU or an external fixture with flying probe access. Adding test points on these three signals would enable direct SPI programming from a bed-of-nails fixture, which is common practice for production flash programming.

Boundary Scan: The design uses JTAG interfaces but no BSDL models were supplied alongside the schematic files. Providing BSDL files for the STM32F746, STM32F103, LAN8742A, and other JTAG-capable devices would enable boundary scan coverage analysis and dramatically improve the testability assessment for digital nets.

Additional Observation — SDRAM Bus Width: The SDRAM (MT48LC4M32B2B5) is a 4M×32 device, but only 16 of 32 data bits (DQ0–DQ15) are connected to the STM32F7 FMC. DQ16–DQ31 are pulled low. This is intentional (the STM32F7 FMC supports 16-bit SDRAM mode), but it means only 16 Mbytes of the SDRAM capacity are usable at 16-bit data width.

1 Design Summary

Design Type	Hierarchical (13 sheets)
Total Components	360
Total Pins	2802
Total Nets	348
Total Test Points	3
Project Variants	2

1.1 Processed Sheets

#	Sheet Name
1	ST_LINK_V2-1
2	AUDIO
3	USB_OTG_FS
4	Peripherals
5	QSPI
6	LCD-43
7	Arduino_ Connectors
8	SDRAM
9	USB_OTG_HS
10	STM32F7
11	Ethernet
12	Camera-Connectors
13	Top

1.2 Table of Variants

F746NGH6 - F746NGH6
Status	RefDes	Part Type	Alt Part	Footprint
DNP	C90	Cap_NA_0402		0402C
DNP	CN8	Header 4		Header 4
DNP	JP3	Jumper2		SIP2/2.54
DNP	JP4	Jumper2		SIP2/2.54
DNP	R8	Res_NA_0402		0402R
DNP	R12	Res_NA_0402		0402R
DNP	R35	Res_NA_0402		0402R
DNP	R42	Res_NA_0402		0402R
DNP	R63	Res_NA_0402		0402R
DNP	R80	Res_NA_0402		0402R
DNP	R100	Res_NA_0402		0402R
DNP	R103	Res_NA_0402		0402R
DNP	R106	Res_NA_0402		0402R
DNP	R109	Res_0_5%_0402		0402R
DNP	R111	Res_NA_0402		0402R

F750N8H6 - F750N8H6
Status	RefDes	Part Type	Alt Part	Footprint
DNP	C90	Cap_NA_0402		0402C
DNP	CN8	Header 4		Header 4
DNP	JP3	Jumper2		SIP2/2.54
DNP	JP4	Jumper2		SIP2/2.54
DNP	R8	Res_NA_0402		0402R
DNP	R12	Res_NA_0402		0402R
DNP	R35	Res_NA_0402		0402R
DNP	R42	Res_NA_0402		0402R
DNP	R63	Res_NA_0402		0402R
DNP	R80	Res_NA_0402		0402R
DNP	R100	Res_NA_0402		0402R
DNP	R103	Res_NA_0402		0402R
DNP	R106	Res_NA_0402		0402R
DNP	R109	Res_0_5%_0402		0402R
DNP	R111	Res_NA_0402		0402R
ALT	U5	STM32F746NGH6U	STM32F750N8H6	BGA216_0R8_13X13_SKT

2 Component Value Properties

Component values should be in VALUE property (or typed fields like Capacitance/Resistance/Inductance). Values in the comment field affect BOM generation and parameter queries.

Value Property Check
Type	Check	Count	Components	Status
Capacitors	Values in VALUE or Capacitance	123	C101, C113, C118, C109, C91, C86, C85, C84 (+115 more)
Capacitors	Values incorrectly in Comment field	10	CN8, CN11, CN10, CN2, CN3, CN5, CN7, CN6 (+2 more)
Resistors	Values in VALUE or Resistance	141	R72, R60, R112, R101, R100, R105, R99, R98 (+133 more)
Inductors	Values in VALUE or Inductance	6	L4, L5, L6, L7, L1, L2
Inductors	Values incorrectly in Comment field	1	L3

3 Pin Connectivity Report

3.1 Unconnected Pins

Unconnected pins that are not marked NO_ERC.

1 unconnected pin(s) found:

Refdes_Pin	Pin Function	Pin Property	Device Type	Net Name	Notes
U5_H1	PH1-OSC_OUT	Passive	STM32F746NGH6U	PH1

3.2 NC Pins Connected to Nets

2 NC pin(s) connected to nets:

These pins are designated as NC (No Connect) in the datasheet but are connected. This may be OK if the supplier has issued datasheet errata subsequent to the creation of the schematic library model.

Refdes_Pin	Pin Function	Pin Property	Device Type	Net Name	Notes
U2_1	NC	Passive	74LVC1G04SE	NOLBL_R10_2_2	4 pins on net - Library error: shares location with pin 2 (A)
U1_1	NC	Passive	74LVC1G04SE	NOLBL_R7_2_2	4 pins on net - Library error: shares location with pin 2 (A)

3.3 Implied/Hidden Net Connections

No components with implied/hidden net connections found.

3.4 Summary

Total NO_ERC markers in design	68
Pins needing attention (warnings)	3
Pins for information only	0

4 Power Overview

Power rails	13
Regulators identified	0

Power architecture overview. For test point coverage, see Design-for-Test section.

Power Rails
Rail	Voltage	Source	RefDes	Type	Description
5V	5.00V	-	U7	LD39050P	Ultra low drop-low , 500 mA low quiescent current
			U16	STMPS2141STR	Enhanced single channel power switches
			U15	USB3320C-EZK	USB3320C, Hi-Speed USB Host, Device or OTG PHY with ULPI Low Pin Interface
			U17	STMPS2151STR	Enhanced single channel power switches
5V_ST_LINK	5.00V	-	U8	ST890CDR	1.2 A current limited high-side power switch with thermal shutdown
5V_USB_ST_LINK	5.00V	-	U8	ST890CDR	1.2 A current limited high-side power switch with thermal shutdown
E5V	5.00V	-	U6	LD1117S50TR	IC REG LDO 5V 0.8A SOT223
3V3	3.30V	-	U13	LD1117S18TR	LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS (1.8 Volts)
			U7	LD39050P	Ultra low drop-low , 500 mA low quiescent current
			U11	WM8994ECS/R	Multi-Channel Audio Hub CODEC for Smartphones
			U2	74LVC1G04SE	Single inverter gate with a standard push-pull output. (1.65V to 5.5V)
			U1	74LVC1G04SE	Single inverter gate with a standard push-pull output. (1.65V to 5.5V)
			U3	MT25QL128ABA1EW9-0SIT	128Mb, 3V, Multiple I/O Serial Flash Memory, Quad/Dual
			U19	HT043C	4.3 inch TFT 480*272 pixels with LED Backlight and Capacitive touch panel, high luminance
			U4	MT48LC4M32B2B5-6A	SDRAM 128MBIT (4M x 32) 166MHZ 90-VFBGA (8x13)
			U9	LAN8742A-CZ-TR	LAN8742A-CZ-TR - Small Footprint RMII 10/100 Ethernet, Transceiver with HP Auto-MDIX and flexPWR Technology SQFN-24
3V3_ST_LINK	3.30V	-	U14	STM32F103CBT6	Medium-density performance line ARM-based 32-bit MCU with 128KB Flash
			U12	LD3985M33R	Ultra low drop-low noise BiCMOS voltage, regulators low ESR capacitors compatible
1V8	1.80V	-	U13	LD1117S18TR	LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS (1.8 Volts)
			U11	WM8994ECS/R	Multi-Channel Audio Hub CODEC for Smartphones
			U15	USB3320C-EZK	USB3320C, Hi-Speed USB Host, Device or OTG PHY with ULPI Low Pin Interface
BLGND	-	-	U10	STLD40DPUR	White LED power supply for large display backlight, QFN8
GND	-	-	U14	STM32F103CBT6	Medium-density performance line ARM-based 32-bit MCU with 128KB Flash
			U7	LD39050P	Ultra low drop-low , 500 mA low quiescent current
			U12	LD3985M33R	Ultra low drop-low noise BiCMOS voltage, regulators low ESR capacitors compatible
			U8	ST890CDR	1.2 A current limited high-side power switch with thermal shutdown
			U6	LD1117S50TR	IC REG LDO 5V 0.8A SOT223
			U13	LD1117S18TR	LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS (1.8 Volts)
			U11	WM8994ECS/R	Multi-Channel Audio Hub CODEC for Smartphones
			U20	IMP34DT05TR	MEMS audio sensor omnidirectional digital microphone for industrial applications
			U21	IMP34DT05TR	MEMS audio sensor omnidirectional digital microphone for industrial applications
			U1	74LVC1G04SE	Single inverter gate with a standard push-pull output. (1.65V to 5.5V)
			U2	74LVC1G04SE	Single inverter gate with a standard push-pull output. (1.65V to 5.5V)
			U18	EMIF02-USB03F2	2-line IPAD, EMI filter including ESD protection
			U16	STMPS2141STR	Enhanced single channel power switches
			U3	MT25QL128ABA1EW9-0SIT	128Mb, 3V, Multiple I/O Serial Flash Memory, Quad/Dual
			U19	HT043C	4.3 inch TFT 480*272 pixels with LED Backlight and Capacitive touch panel, high luminance
			U4	MT48LC4M32B2B5-6A	SDRAM 128MBIT (4M x 32) 166MHZ 90-VFBGA (8x13)
			U15	USB3320C-EZK	USB3320C, Hi-Speed USB Host, Device or OTG PHY with ULPI Low Pin Interface
			U17	STMPS2151STR	Enhanced single channel power switches
			U22	ESD7383NCTBG	3-line low capacitance protection for high speed USB
			U5	STM32F746NGH6U	STM32F746NGH6 (STM32F7 Birdie) TBGA216
			U9	LAN8742A-CZ-TR	LAN8742A-CZ-TR - Small Footprint RMII 10/100 Ethernet, Transceiver with HP Auto-MDIX and flexPWR Technology SQFN-24
VDD	-	-	U5	STM32F746NGH6U	STM32F746NGH6 (STM32F7 Birdie) TBGA216
VDDA	-	-	U5	STM32F746NGH6U	STM32F746NGH6 (STM32F7 Birdie) TBGA216
VIN	-	-	U6	LD1117S50TR	IC REG LDO 5V 0.8A SOT223
VREF+	-	-	U5	STM32F746NGH6U	STM32F746NGH6 (STM32F7 Birdie) TBGA216

5 Connector Pinouts

Total connectors

5.1 CN1 RCA_SMD

CN1 - RCA_SMD
Pin	Pin Name	Net	Notes
1	Ground	GND
2	Signal	NOLBL_C6_1_1

5.2 CN2 F206A-2*04MGF-A (I2C)

CN2 - F206A-2*04MGF-A (I2C)
Pin	Pin Name	Net	Notes
1	1	EXT_SDA
2	2	NC
3	3	EXT_SCL
4	4	EXT_RST
5	5	3V3
6	6	NC
7	7	GND
8	8	NOLBL_CN2_8_8

5.3 CN3 microSD-PJS008-2003 (QSPI)

CN3 - microSD-PJS008-2003 (QSPI)
Pin	Pin Name	Net	Notes
1	1	uSD_D2
2	2	uSD_D3
3	3	uSD_CMD
4	4	3V3
5	5	uSD_CLK
6	6	GND
7	7	uSD_D0
8	8	uSD_D1
9	SW2	GND
10	SW1	NOLBL_CN3_10_SW1
11	GND	GND
12	GND	GND
13	GND	GND
14	GND	GND

5.4 CN4 F201-1*08MGF-W1-BA

CN4 - F201-1*08MGF-W1-BA
Pin	Pin Name	Net	Notes
1	1	PC7
2	2	PC6
3	3	PG6
4	4	PB4
5	5	ARD_D4
6	6	PI0
7	7	ARD_D6
8	8	ARD_D7

5.5 CN5 F201-1*06MGF-W1-BA

CN5 - F201-1*06MGF-W1-BA
Pin	Pin Name	Net	Notes
1	1	PA0
2	2	PF10
3	3	PF9
4	4	ARD_A3
5	5	NOLBL_CN5_5_5
6	6	NOLBL_CN5_6_6

5.6 CN6 F201-1*08MGF-W1-BA

CN6 - F201-1*08MGF-W1-BA
Pin	Pin Name	Net	Notes
1	1	NC
2	2	3V3
3	3	NRST
4	4	3V3
5	5	5V
6	6	GND
7	7	GND
8	8	VIN

5.7 CN7 F201-1*10MGF-W1-BA (I2C)

CN7 - F201-1*10MGF-W1-BA (I2C)
Pin	Pin Name	Net	Notes
1	1	ARD_D8
2	2	PA15
3	3	ARD_D10
4	4	PB15
5	5	PB14
6	6	PI1
7	7	GND
8	8	NOLBL_CN7_8_8
9	9	EXT_SDA
10	10	EXT_SCL

5.8 CN8 Header 4 (JTAG)

CN8 - Header 4 (JTAG)
Pin	Pin Name	Net	Notes
1	1	3V3_ST_LINK
2	2	STM_JTCK
3	3	GND
4	4	STM_JTMS

5.9 CN9 HR961160C

CN9 - HR961160C
Pin	Pin Name	Net	Notes
1	LED(Yellow)_A	NOLBL_CN9_1_LED(Yellow)_A
2	LED(Yellow)_K	NOLBL_CN9_2_LED(Yellow)_K
3	TD+	TD_P
4	TD-	TD_N
5	TCT	3V3
6	RCT	3V3
7	RD+	RD_P
8	RD-	RD_N
9	NC	NC
10	CHS GND	GND
11	LED(green)_K	NOLBL_CN9_11_LED(green)_K
12	LED(green)_A	NOLBL_CN9_12_LED(green)_A
13	Shield	GND
14	Shield	GND

5.10 CN10 PJ3028B-3_GR

CN10 - PJ3028B-3_GR
Pin	Pin Name	Net	Notes
2	2	GND
3	3	GND
4	4	NOLBL_C115_1_1
6	6	NOLBL_C102_1_1

5.11 CN11 PJ3028B-3_BE

CN11 - PJ3028B-3_BE
Pin	Pin Name	Net	Notes
2	2	GND
3	3	GND
4	4	NOLBL_C106_2_2
6	6	NOLBL_C107_2_2

5.12 CN12 USB-MICRO-AB

CN12 - USB-MICRO-AB
Pin	Pin Name	Net	Notes
1	VBUS	5V_USB_HS
2	DM	USB_HS_N
3	DP	USB_HS_P
4	ID	NOLBL_CN12_4_ID
5	GND	NOLBL_C120_2_2
6	Shield	NOLBL_C120_2_2

5.13 CN13 USB-MICRO-AB

CN13 - USB-MICRO-AB
Pin	Pin Name	Net	Notes
1	VBUS	OTG_FS_VBUS
2	DM	USB_FS1_N
3	DP	USB_FS1_P
4	ID	NOLBL_CN13_4_ID
5	GND	GND
6	Shield	GND

5.14 CN14 USB-MINI-typeB connector

CN14 - USB-MINI-typeB connector
Pin	Pin Name	Net	Notes
1	VCC	5V_USB_ST_LINK
2	D-	USB_DM
3	D+	USB_DP
4	ID	GND
5	GND	GND
6	SHELL	GND

5.15 P1 FPU330ZH-BT1D3-CA (QSPI)

P1 - FPU330ZH-BT1D3-CA (QSPI)
Pin	Pin Name	Net	Notes
1	1	GND
2	2	NC
3	3	NC
4	4	DCMI_D0
5	5	DCMI_D1
6	6	DCMI_D2
7	7	DCMI_D3
8	8	DCMI_D4
9	9	DCMI_D5
10	10	DCMI_D6
11	11	DCMI_D7
12	12	NC
13	13	NC
14	14	GND
15	15	DCMI_PIXCK
16	16	GND
17	17	DCMI_HSYNC
18	18	NC
19	19	DCMI_VSYNC
20	20	3V3
21	21	Camera_CLK
22	22	NC
23	23	GND
24	24	NC
25	25	DCMI_PWR_EN
26	26	NRST
27	27	NOLBL_P1_27_27
28	28	NOLBL_P1_28_28
29	29	GND
30	30	3V3

6 Indicator Documentation

7 indicator device(s) found.

6.1 Indicator Assignments

Indicators
RefDes	Type	Color	Signal	Sheet	Notes
LD7	LD_BICOLOR_CMS	Bicolor	LED_STLINK	ST_LINK_V2-1.SCHDOC	LOW = Green, HIGH = Red, Hi-Z = Off
LD2	LED_red	Red		ST_LINK_V2-1.SCHDOC
LD5	LED_green	Green	LD5_2, T2_3	USB_OTG_FS.SchDoc	Default ON, drive LOW to turn off
LD6	LED_red	Red	OTG_FS_OverCurrent	USB_OTG_FS.SchDoc	LOW = On
LD1	LED_green	Green	LD1_1, R59_1	Arduino_ Connectors.SchDoc	HIGH = On
LD4	LED_green	Green	LD4_2, T1_3	USB_OTG_HS.SchDoc	Default ON, drive LOW to turn off
LD3	LED_red	Red	OTG_HS_OverCurrent	USB_OTG_HS.SchDoc	LOW = On

6.2 Indicator Testability

0 of 7 indicators have test coverage. 2 are transistor-driven.

Indicator Testability
RefDes	Driver	Control Signal	DFT Status	Testable
LD7	Direct	LED_STLINK	Design Warning: Test point needed on LED_STLINK. Drive HIGH to turn on LED LD7.
LD2	Direct		Power indicator
LD5	T2	R134_1, R135_1, T2_1	Design Warning: Test point needed on R134_1, R135_1, T2_1. Drive LOW to turn off LED LD5.
LD6	Direct	OTG_FS_OverCurrent	Design Warning: Test point needed on OTG_FS_OverCurrent. Drive HIGH to turn on LED LD6.
LD1	Direct	LD1_1, R59_1	Design Warning: Test point needed on LD1_1, R59_1. Drive HIGH to turn on LED LD1.
LD4	T1	R124_2, R131_1, T1_1	Design Warning: Test point needed on R124_2, R131_1, T1_1. Drive LOW to turn off LED LD4.
LD3	Direct	OTG_HS_OverCurrent	Design Warning: Test point needed on OTG_HS_OverCurrent. Drive HIGH to turn on LED LD3.

7 Switch Documentation

No switches (SW*) found in design.

8 Designer Annotated Nets

Annotated signals

Designer-added point markers indicating special routing or handling requirements. Differential pairs are shown combined.

Designer Annotations
Net Name	Annotation	Impedance	Notes
OSC_24M	CLOCK
OSC_25M	CLOCK
DCMI_HSYNC	DCMII
DCMI_PIXCK	DCMII
DCMI_VSYNC	DCMII
NRST	DCMII
USB_FS1_P/N	DIFFPAIR
OTG_FS_P/N	DIFFPAIR_FS
RD_P/N	Diff Pair 100ohm	100 Ohm
TD_P/N	Diff Pair 100ohm	100 Ohm
USB_HS_P/N	Diff Pair 90ohm	90 Ohm
LCD_BL_CTRL	LCD
LCD_CLK	LCD
LCD_HSYNC	LCD
LCD_VSYNC	LCD
QSPI_CLK	QSPI
QSPI_D0	QSPI
QSPI_D1	QSPI
QSPI_D2	QSPI
QSPI_D3	QSPI
QSPI_NCS	QSPI
RMII_CRS_DV	RMII
RMII_MDC	RMII
RMII_MDIO	RMII
RMII_REF_CLK	RMII
RMII_RXD0	RMII
RMII_RXD1	RMII
RMII_TXD0	RMII
RMII_TXD1	RMII
RMII_TX_EN	RMII
FMC_SDCKE0	SDRAM
FMC_SDCLK	SDRAM
FMC_SDNCAS	SDRAM
FMC_SDNE0	SDRAM
FMC_SDNRAS	SDRAM
FMC_SDNWE	SDRAM
ULPI_CK	USB HS
ULPI_DIR	USB HS
ULPI_NXT	USB HS
ULPI_STP	USB HS

9 Low-Speed Serial Interfaces (LSSI)

Detected: 3 I2C, 2 SWD

9.1 I2C

I2C: U5
Topology: U5 » Targets (CN2, CN7)
Signal	Net Name	Connector	Test Point	Target Pin
SCL	EXT_SCL / PB8 / DCMI_SCL / ARD_D15	CN2_3, CN7_10	(none)	U5_A7 (PB8)
SDA	EXT_SDA / PB9 / DCMI_SDA / ARD_D14	CN2_1, CN7_9	(none)	U5_B4 (PB9)
Controller	Industry Type	Description
U5	STM32F746NGH6U	STM32F746NGH6 (STM32F7 Birdie) TBGA216

I2C: U5 -> U11, U19
Topology: U5 » Targets (U11, U19)
Signal	Net Name	Connector	Test Point	Target Pin
SCL	LCD_SCL / PH7 / AUDIO_SCL	(none)	(none)	U11_H1 (SCLK), U19_39 (SCL), U5_N13 (PH7)
SDA	LCD_SDA / PH8 / LCD_SDA / AUDIO_SDA	(none)	(none)	U11_F3 (SDA), U19_40 (SDA), U5_P14 (PH8)
Address	Target	Industry Type	Description
0x34	U11	WM8994ECS/R	Multi-Channel Audio Hub CODEC for Smartphones
0x70	U19	HT043C	4.3 inch TFT 480*272 pixels with LED Backlight and Capacitive touch panel, high luminance
Controller	Industry Type	Description
U5	STM32F746NGH6U	STM32F746NGH6 (STM32F7 Birdie) TBGA216

I2C: U5 -> U11, U19
Topology: U5 » Targets (U11, U19)
Signal	Net Name	Connector	Test Point	Target Pin
SCL	NOLBL_R76_2_2	(none)	(none)	U11_H1 (SCLK), U19_39 (SCL), U5_N13 (PH7)
SDA	NOLBL_R83_2_2	(none)	(none)	U11_F3 (SDA), U19_40 (SDA), U5_P14 (PH8)
Address	Target	Industry Type	Description
0x34	U11	WM8994ECS/R	Multi-Channel Audio Hub CODEC for Smartphones
0x70	U19	HT043C	4.3 inch TFT 480*272 pixels with LED Backlight and Capacitive touch panel, high luminance
Controller	Industry Type	Description
U5	STM32F746NGH6U	STM32F746NGH6 (STM32F7 Birdie) TBGA216

I2C Pull-up Check
Net	Component	Status
EXT_SDA	R46	Pull-up resistor 2.7K (R46) found on SDA
EXT_SCL	R54	Pull-up resistor 2.7K (R54) found on SCL
LCD_SDA	R61	Pull-up resistor 2.7K (R61) found on SDA
LCD_SCL	R62	Pull-up resistor 2.7K (R62) found on SCL
NOLBL_R83_2_2		Pull-up on NOLBL_R83_2_2 was not detected. A pull-up for basic I2C operation would be about 4.7K ohms. Even if an IC has internal pull-ups on its inputs, they are likely just for biasing the input high (47-100K ohms) and are not sufficient for I2C. We did not consult the datasheet for U11 but low-value resistors cost silicon area, so it is unlikely the IC has them.
NOLBL_R76_2_2		Pull-up on NOLBL_R76_2_2 was not detected. A pull-up for basic I2C operation would be about 4.7K ohms. Even if an IC has internal pull-ups on its inputs, they are likely just for biasing the input high (47-100K ohms) and are not sufficient for I2C. We did not consult the datasheet for U11 but low-value resistors cost silicon area, so it is unlikely the IC has them.

9.2 SWD

SWD -> U5
Topology: Targets (U5)
Signal	Net Name	Connector	Test Point	Target Pin
SWCLK	SWCLK / PA14 / SWCLK	(none)	(none)	U5_A14 (PA14)
SWDIO	SWDIO / PA13 / SWDIO	(none)	(none)	U5_A15 (PA13)
SWO	SWO / PB3 / SWO	(none)	(none)	U5_A10 (PB3)
NRST	NRST / DCMI_NRST / LCD_RST /	CN6_3, P1_26	(none)	U15_27 (RESETB), U19_37 (RESET), U5_J1 (NRST), U9_15 (nRST)
Target	Industry Type	Description
U5	STM32F746NGH6U	STM32F746NGH6 (STM32F7 Birdie) TBGA216

SWD [STM] -> U14
Topology: Access (CN8) » Targets (U14)
Signal	Net Name	Connector	Test Point	Target Pin
SWCLK	STM_JTCK	CN8_2	(none)	U14_37 (JTCK/SWCLK)
SWDIO	STM_JTMS	CN8_4	(none)	U14_34 (JTMS/SWDIO)
Target	Industry Type	Description
U14	STM32F103CBT6	Medium-density performance line ARM-based 32-bit MCU with 128KB Flash

9.3 LSSI DFT Analysis

12 signal(s) missing test point coverage. Test points allow ATE to run tests without requiring operator intervention and setup. They should be considered mandatory for high volume products.

During test, ATE can override functional operation to explicitly test through the interface in ways that functional operation cannot, or is not available at certain test stages.

Missing Test Points
Signal	Net Name	Connector	Interface
NRST	NRST	CN6_3	SWD -> U5
SWCLK	SWCLK	(none)	SWD -> U5
SWDIO	SWDIO	(none)	SWD -> U5
SWO	SWO	(none)	SWD -> U5
SWCLK	STM_JTCK	CN8_2	SWD -> U14
SWDIO	STM_JTMS	CN8_4	SWD -> U14
SCL	EXT_SCL	CN2_3	I2C
SDA	EXT_SDA	CN2_1	I2C
SCL	LCD_SCL	(none)	I2C -> U11, U19
SDA	LCD_SDA	(none)	I2C -> U11, U19
SCL	NOLBL_R76_2_2	(none)	I2C -> U11, U19
SDA	NOLBL_R83_2_2	(none)	I2C -> U11, U19

10 High-Speed Serial Interfaces (HSSI)

10 differential pair(s)

10.1 Differential Pairs

Differential pairs with designer-specified class annotations.

Differential Pairs
Net Name	Class	Impedance	Notes
OTG_FS_P/N	DIFF_PAIR
USB_FS1_P/N	DIFF_PAIR
RD_P/N	Diff Pair 100ohm	100 Ohm
TD_P/N	Diff Pair 100ohm	100 Ohm
USB_HS_P/N	Diff Pair 90ohm	90 Ohm

11 Memory Interface Analysis

Found 2 complete memory interface(s)

11.1 U3 QSPI

U3 (MT25QL128ABA1EW9-0SIT) - QSPI [4-bit data]
Signal	Pin Name	Pin #	Net Name	Test Point
CLOCK	C	6	QSPI_CLK / PB2	-
DATA_0	DQ0	5	QSPI_D0 / PD11	-
DATA_1	DQ1	2	QSPI_D1 / PD12	-
DATA_2	DQ2/W#	3	QSPI_D2 / PE2	-
DATA_3	DQ3/HOLD#	7	QSPI_D3 / PD13	-
SELECT	S#	1	QSPI_NCS / PB6	-
DESIGN_WARNING: Test points needed on QSPI_CLK, QSPI_NCS and QSPI_D0 for direct on-board programming
Analysis to verify each net is controllable could not be done because a BSDL file was not provided

11.2 U4 SDRAM

U4 (MT48LC4M32B2B5-6A) - SDRAM
Signal	Pin Name	Pin #	Net Name	Notes
CLOCK	CLK	J1	FMC_SDCLK / PG8	-
DATA_0	DQ0	R8	FMC_D0	-
DATA_1	DQ1	N7	FMC_D1 / PD15	-
DATA_2	DQ2	R9	FMC_D2	-
DATA_3	DQ3	N8	FMC_D3 / PD1	-
DATA_4	DQ4	P9	FMC_D4 / PE7	-
DATA_5	DQ5	M8	FMC_D5 / PE8	-
DATA_6	DQ6	M7	FMC_D6 / PE9	-
DATA_7	DQ7	L8	FMC_D7 / PE10	-
DATA_8	DQ8	L2	FMC_D8 / PE11	-
DATA_9	DQ9	M3	FMC_D9 / PE12	-
DATA_10	DQ10	M2	FMC_D10	-
DATA_11	DQ11	P1	FMC_D11 / PE14	-
DATA_12	DQ12	N2	FMC_D12 / PE15	-
DATA_13	DQ13	R1	FMC_D13 / PD8	-
DATA_14	DQ14	N3	FMC_D14 / PD9	-
DATA_15	DQ15	R2	FMC_D15 / PD10	-
DATA_16	DQ16	E8	pulled-low	pulled-low
DATA_17	DQ17	D7	pulled-low	pulled-low
DATA_18	DQ18	D8	pulled-low	pulled-low
DATA_19	DQ19	B9	pulled-low	pulled-low
DATA_20	DQ20	C8	pulled-low	pulled-low
DATA_21	DQ21	A9	pulled-low	pulled-low
DATA_22	DQ22	C7	pulled-low	pulled-low
DATA_23	DQ23	A8	pulled-low	pulled-low
DATA_24	DQ24	A2	pulled-low	pulled-low
DATA_25	DQ25	C3	pulled-low	pulled-low
DATA_26	DQ26	A1	pulled-low	pulled-low
DATA_27	DQ27	C2	pulled-low	pulled-low
DATA_28	DQ28	B1	pulled-low	pulled-low
DATA_29	DQ29	D2	pulled-low	pulled-low
DATA_30	DQ30	D3	pulled-low	pulled-low
DATA_31	DQ31	E2	pulled-low	pulled-low
SDRAM testable via boundary scan (JTAG) or CPU memory test - no physical test points required

12 EMC Design Checks

Checks run	1
Passed	0
Issues found	3

EMC Check Summary
Check	Issues	Status
Connector Shell Grounding	3

12.1 Connector Shell Grounding

RefDes	Type	Issue	Recommendation
CN13	USB-MICRO-AB	CN13: Shielded connector shell pins named Shield are connected to digital GND. Shell/shield current paths affect EMC; consider a dedicated CHASSIS_GND/SHIELD net (or equivalent) to encode EMC intent, or explicitly document EMC intent for PCB layout to avoid coupling shell currents into the digital logic ground plane.	A separate chassis/shield conductor at the power input is the preferred shell termination. Alternatively, connect shell pins through a 0-ohm resistor to GND. Either approach forces trace routing rather than direct ground plane connection, giving layout control over the shell current path and documenting EMC intent in the schematic.
CN14	USB-MINI-typeB connector	CN14: Shielded connector shell pins named SHELL are connected to digital GND. Shell/shield current paths affect EMC; consider a dedicated CHASSIS_GND/SHIELD net (or equivalent) to encode EMC intent, or explicitly document EMC intent for PCB layout to avoid coupling shell currents into the digital logic ground plane.	A separate chassis/shield conductor at the power input is the preferred shell termination. Alternatively, connect shell pins through a 0-ohm resistor to GND. Either approach forces trace routing rather than direct ground plane connection, giving layout control over the shell current path and documenting EMC intent in the schematic.
CN9	HR961160C	CN9: Shielded connector shell pins named Shield, Shield are connected to digital GND. Shell/shield current paths affect EMC; consider a dedicated CHASSIS_GND/SHIELD net (or equivalent) to encode EMC intent, or explicitly document EMC intent for PCB layout to avoid coupling shell currents into the digital logic ground plane.	A separate chassis/shield conductor at the power input is the preferred shell termination. Alternatively, connect shell pins through a 0-ohm resistor to GND. Either approach forces trace routing rather than direct ground plane connection, giving layout control over the shell current path and documenting EMC intent in the schematic.

13 Design-for-Test

Design for Testability (DFT) analysis for ICT/bed-of-nails test coverage.

13.1 Oscillator OE Test Points

Certain production PCB tests require oscillators to be turned off. OE pins require pull resistors with test points to achieve that.

Oscillator	Type	Issue
X2	OSC_25M_NZ2520SB	EN has pull-up resistor but no test point at R5_2, X2_1
X1	OSC_24M_NZ2520SB	EN has pull-up resistor but no test point at R4_2, X1_1

13.2 IC Enable Test Point Check

ICs with enable pins (power switches, regulators, etc.) require test points forfixture-based test to disable the device during test.

IC	Type	Pin Name	Pin #	Issue
U7	LD39050P	EN	1	EN tied to VCC - recommend pull-up resistor and test point
U16	STMPS2141STR	EN	4	EN has pull-up resistor but no test point at R116_1, R117_2, U16_4 - Active-low enable with pull-up disables output when pin 4 is not driven.
U10	STLD40DPUR	EN	7	EN has pull-up resistor but no test point at R81_1, R85_1, U10_7

13.3 Power Rail Test Point Check

Power port nets found	16
With test point	0
Without test point	16

16 power rail(s) need test points

Power Rail Coverage
Net Name	Annotation	Test Point	Status
1V8		-	NEEDS TP
3V3		-	NEEDS TP
3V3_ST_LINK		-	NEEDS TP
5V		-	NEEDS TP
5V_ST_LINK		-	NEEDS TP
5V_USB_FS		-	NEEDS TP
5V_USB_HS		-	NEEDS TP
5V_USB_ST_LINK		-	NEEDS TP
BLGND		-	NEEDS TP
BLVDD		-	NEEDS TP
E5V		-	NEEDS TP
GND		-	NEEDS TP
VDD		-	NEEDS TP
VDDA		-	NEEDS TP
VIN		-	NEEDS TP
VREF+		-	NEEDS TP

13.4 Kelvin Test Points Check

Threshold	1.0 ohm
Current sense resistors found	0

No current sense resistors found in range (0 < R < 1.0 ohm).

13.5 Test Point Report

Total test points

Test Points by Pad Type
Pad Type	Count
Test Point	3

13.5.1 Test Points by Sheet

Test Point	Net Name	Pad Type
AUDIO (1 test points)
TP3	TP_PH15	Test Point
STM32F7 (2 test points)
TP1	NOLBL_R29_2_2	Test Point
TP2	NOLBL_R33_2_2	Test Point

13.5.2 All Test Points

Test Point	Net Name	Sheet	Pad Type
TP1	NOLBL_R29_2_2	STM32F7	Test Point
TP2	NOLBL_R33_2_2	STM32F7	Test Point
TP3	TP_PH15	AUDIO	Test Point

13.6 Boundary Scan Testability

The design appears to use JTAG interfaces but Boundary Scan analysis was not performed as BSDL models were not supplied. Place BSDL files (.bsdl, .bsd, .bsm) alongside schematic files to enable boundary scan analysis.

14 Model Quality

Schematic symbol and library model quality analysis.

14.1 Library Model Grades

Grading schematic library model quality based on pin electrical type definitions:

Grade Definitions
Grade	Rating	Description
A	Excellent	Has Power pins AND properly typed I/O pins (>=90% typed)
B	Good	>=70% typed OR (>=50% typed AND has Power)
C	Fair	Mix of typed and Passive pins (>=40% typed)
D	Poor	Mostly Passive with few typed pins (>=10% typed)
F	Fail	All pins Passive/Unknown (<10% typed, no ERC)

IC Library Model Grades (sorted worst to best)
RefDes	Grd	Pins	Pwr	In	Out	IO	OC	OE	HiZ	Pas	Part Number	Creator
U1	F	5	0	0	0	0	0	0	0	5	74LVC1G04SE
U10	F	9	0	0	0	0	0	0	0	9	STLD40DPUR
U11	F	72	0	0	0	0	0	0	0	72	WM8994ECS/R
U12	F	5	0	0	0	0	0	0	0	5	LD3985M33R
U13	F	4	0	0	0	0	0	0	0	4	LD1117S18TR
U15	F	33	0	0	0	0	0	0	0	33	USB3320C-EZK
U18	F	11	0	0	0	0	0	0	0	11	EMIF02-USB03F2
U19	F	40	0	0	0	0	0	0	0	40	HT043C
U2	F	5	0	0	0	0	0	0	0	5	74LVC1G04SE
U20	F	5	0	0	0	0	0	0	0	5	IMP34DT05TR
U21	F	5	0	0	0	0	0	0	0	5	IMP34DT05TR
U22	F	4	0	0	0	0	0	0	0	4	ESD7383NCTBG
U3	F	9	0	0	0	0	0	0	0	9	MT25QL128ABA1EW9-0SIT
U4	F	90	0	0	0	0	0	0	0	90	MT48LC4M32B2B5-6A
U5	F	216	0	0	0	0	0	0	0	216	STM32F746NGH6U
U6	F	4	0	0	0	0	0	0	0	4	LD1117S50TR
U7	F	7	0	0	0	0	0	0	0	7	LD39050P
U8	F	8	0	0	0	0	0	0	0	8	ST890CDR
U9	F	25	0	0	0	0	0	0	0	25	LAN8742A-CZ-TR
U16	D	5	0	0	1	0	0	0	0	4	STMPS2141STR
U17	D	5	0	0	1	0	0	0	0	4	STMPS2151STR
U14	A	48	9	0	1	35	0	0	0	3	STM32F103CBT6

14.1.1 Library Quality Summary

Total ICs evaluated	22
Grade A (excellent)	1 (4.5%)
Grade B (good)	0 (0.0%)
Grade C (fair)	0 (0.0%)
Grade D (poor)	2 (9.1%)
Grade F (fail)	19 (86.4%)
OVERALL LIBRARY QUALITY	F (0.27/4.00)

14.2 Component Library Validation

Checking for generic/incomplete library models using statistical patterns.

Library Model Issues (23 models)
Library Name	Industry Name	Part Number	RefDes	Pins	Distribution	Issues
74LVC1G04SE	-	-	U1, U2	5	P:5	Pin 1 (NC) at same location as pin 2 (A); All pins marked as Passive - likely generic library model; No Power pins - may use separate power symbol; Only 1 pin type used - no electrical differentiation; Power-named pins not typed as Power - library pin types incomplete [GND=Passive, VCC=Passive]
EMIF02-USB03F2	-	-	U18	11	P:11	All pins marked as Passive - likely generic library model; No Power pins - may use separate power symbol; Only 1 pin type used - no electrical differentiation; Power-named pins not typed as Power - library pin types incomplete [GND=Passive]
F201-1*06MGF-W1-BA	-	-	CN5	6	P:6	All pins marked as Passive - likely generic library model; No Power pins - may use separate power symbol; Only 1 pin type used - no electrical differentiation
F201-1*08MGF-W1-BA	-	-	CN4, CN6	8	P:8	All pins marked as Passive - likely generic library model; No Power pins - may use separate power symbol; Only 1 pin type used - no electrical differentiation
F201-1*10MGF-W1-BA	-	-	CN7	10	P:10	All pins marked as Passive - likely generic library model; No Power pins - may use separate power symbol; Only 1 pin type used - no electrical differentiation
F206A-2*04MGF-A	-	-	CN2	8	P:8	All pins marked as Passive - likely generic library model; No Power pins - may use separate power symbol; Only 1 pin type used - no electrical differentiation
HR961160C	-	-	CN9	14	P:14	All pins marked as Passive - likely generic library model; No Power pins - may use separate power symbol; Only 1 pin type used - no electrical differentiation; Power-named pins not typed as Power - library pin types incomplete [CHS GND=Passive]
HT043C	-	-	U19	40	P:40	All pins marked as Passive - likely generic library model; No Power pins - may use separate power symbol; Only 1 pin type used - no electrical differentiation; Power-named pins not typed as Power - library pin types incomplete [GND=Passive, VDD=Passive, GND=Passive, GND=Passive, GND=Passive]
IMP34DT05TR	-	-	U20, U21	5	P:5	All pins marked as Passive - likely generic library model; No Power pins - may use separate power symbol; Only 1 pin type used - no electrical differentiation; Power-named pins not typed as Power - library pin types incomplete [GND=Passive, VDD=Passive]
LAN8742A-CZ-TR	-	-	U9	25	P:25	All pins marked as Passive - likely generic library model; No Power pins - may use separate power symbol; Only 1 pin type used - no electrical differentiation; Power-named pins not typed as Power - library pin types incomplete [GND_EP=Passive, VDDIO=Passive, VDD1A=Passive, VDD2A=Passive, VDDCR=Passive]
LD39050P	-	-	U7	7	P:7	All pins marked as Passive - likely generic library model; No Power pins - may use separate power symbol; Only 1 pin type used - no electrical differentiation; Power-named pins not typed as Power - library pin types incomplete [GND=Passive, GND=Passive]
LD3985M33R	-	-	U12	5	P:5	All pins marked as Passive - likely generic library model; No Power pins - may use separate power symbol; Only 1 pin type used - no electrical differentiation; Power-named pins not typed as Power - library pin types incomplete [Vin=Passive, GND=Passive]
MT25QL128ABA1EW9-0SIT	-	-	U3	9	P:9	All pins marked as Passive - likely generic library model; No Power pins - may use separate power symbol; Only 1 pin type used - no electrical differentiation; Power-named pins not typed as Power - library pin types incomplete [VCC=Passive, VSS=Passive, EPAD=Passive]
MT48LC4M32B2B5-6A	-	-	U4	90	P:90	All pins marked as Passive - likely generic library model; No Power pins - may use separate power symbol; Only 1 pin type used - no electrical differentiation; Power-named pins not typed as Power - library pin types incomplete
ST890CDR	-	-	U8	8	P:8	All pins marked as Passive - likely generic library model; No Power pins - may use separate power symbol; Only 1 pin type used - no electrical differentiation; Power-named pins not typed as Power - library pin types incomplete [GND=Passive]
STLD40DPUR	-	-	U10	9	P:9	All pins marked as Passive - likely generic library model; No Power pins - may use separate power symbol; Only 1 pin type used - no electrical differentiation; Power-named pins not typed as Power - library pin types incomplete [GND=Passive, PGND=Passive]
STM32F746NGH6U	-	-	U5	216	P:216	All pins marked as Passive - likely generic library model; No Power pins - may use separate power symbol; Only 1 pin type used - no electrical differentiation; Power-named pins not typed as Power - library pin types incomplete
STMPS2141STR	-	-	U16	5	P:4 O:1	80% of pins are Passive - suspiciously high for an IC; No Power pins - may use separate power symbol; Power-named pins not typed as Power - library pin types incomplete [GND=Passive]
STMPS2151STR	-	-	U17	5	P:4 O:1	80% of pins are Passive - suspiciously high for an IC; No Power pins - may use separate power symbol; Power-named pins not typed as Power - library pin types incomplete [GND=Passive]
USB-MICRO-AB	-	-	CN12, CN13	6	P:6	All pins marked as Passive - likely generic library model; No Power pins - may use separate power symbol; Only 1 pin type used - no electrical differentiation; Power-named pins not typed as Power - library pin types incomplete [GND=Passive]
USB3320C-EZK	-	-	U15	33	P:33	All pins marked as Passive - likely generic library model; No Power pins - may use separate power symbol; Only 1 pin type used - no electrical differentiation; Power-named pins not typed as Power - library pin types incomplete
WM8994ECS/R	-	-	U11	72	P:72	All pins marked as Passive - likely generic library model; No Power pins - may use separate power symbol; Only 1 pin type used - no electrical differentiation; Power-named pins not typed as Power - library pin types incomplete
microSD-PJS008-2003	-	-	CN3	14	P:14	All pins marked as Passive - likely generic library model; No Power pins - may use separate power symbol; Only 1 pin type used - no electrical differentiation; Power-named pins not typed as Power - library pin types incomplete [GND=Passive, GND=Passive, GND=Passive, GND=Passive]

14.2.1 Validation Heuristics

All pins same type: Generic library with no electrical rules

High % passive pins on IC: Incomplete type information

No power pins: May indicate separate power symbol

Low type diversity: Very underspecified library model

Power-named pins not typed as Power: Library pin types incomplete

14.3 Shielded Connector Model Quality

Shielded connectors with missing pin names

All shielded connectors have proper pin names for EMC analysis.

14.4 Footprints and Other Models

Components with model data

Component Model Assignments
RefDes	Industry Name	Part Number	Pins	Model Type	Model
B1	-	-	4	Footprint	BP1CMS
B2	-	-	4	Footprint	BP1CMS
CN2	-	-	8	Footprint	SSM-104-L-DH
CN3	-	-	14	Footprint	PJS008-2003-1
CN4	-	-	8	Footprint	F201-1*08MGF-W1-BA
				SI Model	Connector
CN5	-	-	6	Footprint	HDR2X17
				SI Model	Connector
CN6	-	-	8	Footprint	F201-1*08MGF-W1-BA
				SI Model	Connector
CN7	-	-	10	Footprint	F201-1*10MGF-W1-BA
				SI Model	Connector
CN8	-	-	4	Footprint	Header 4
				SI Model	Connector
CN9	-	-	14	Footprint	RJ45_HR961160C
CN10	-	-	4	Footprint	PJ3028B
CN11	-	-	4	Footprint	PJ3028B
CN12	-	-	6	Footprint	USB-MICRO-AB
CN13	-	-	6	Footprint	USB-MICRO-AB
CN14	-	-	6	Footprint	USB-MINI-B-SMD
D7	-	-	4	Footprint	BGA4_1X1
JP1	-	-	8	Footprint	TSM-104-01-x-DV
				SI Model	Connector
LD7	-	-	4	Footprint	HSMF-A201
P1	-	-	30	Footprint	FPU330ZH-BT1D3-CA
				SI Model	Connector
T1	-	-	3	Footprint	SOT23
				Simulation	NPN
T2	-	-	3	Footprint	SOT23
				Simulation	NPN
T3	-	-	3	Footprint	SOT23
				Simulation	NPN
TP1	-	-	1	Footprint	TP
TP2	-	-	1	Footprint	TP
TP3	-	-	1	Footprint	SIP1/2.54
U1	-	-	5	Footprint	SOT353
U2	-	-	5	Footprint	SOT353
U3	-	-	9	Footprint	W-PDFN-8_8X6_P127
U4	-	-	90	Footprint	FBGA90_0R8_8X13
U5	-	-	216	Footprint	BGA216_0R8_13X13
U6	-	-	4	Footprint	SOT-223
U7	-	-	7	Footprint	DFN6_3x3
U8	-	-	8	Footprint	SO-8
U9	-	-	25	Footprint	QFN24_0R5_4X4
U10	-	-	9	Footprint	QFN8_0R65_3X3_ST
U11	-	-	72	Footprint	BGA72-WCSP
U12	-	-	5	Footprint	SOT23-5L
U13	-	-	4	Footprint	SOT-223
U14	-	-	48	Footprint	QFP48 7X7
U15	-	-	33	Footprint	QFN32_0R5_5X5
U16	-	-	5	Footprint	SOT23-5L
U17	-	-	5	Footprint	SOT23-5L
U18	-	-	11	Footprint	Flip Chip
U19	-	-	40	Footprint	LCD_Kunjian_ HT043C_40P_P080_FLEX_FOLDED
U20	-	-	5	Footprint	HCLGA_3X4X1_4LD
U21	-	-	5	Footprint	HCLGA_3X4X1_4LD
U22	-	-	4	Footprint	ESD_WLCSP4_CASE-567CB_0P80X0P80_P040
X1	-	-	4	Footprint	Model Name
X2	-	-	4	Footprint	Model Name

14.5 IC Pin Electrical Properties

Unique IC models	20
Total IC instances	22

IC Library Models
Industry Name	Part Number	Library Name	RefDes	Notes
-	-	74LVC1G04SE	U1, U2
-	-	EMIF02-USB03F2	U18
-	-	ESD7383NCTBG	U22
-	-	HT043C	U19
-	-	IMP34DT05TR	U20, U21
-	-	LAN8742A-CZ-TR	U9
-	-	LD1117S18TR	U13
-	-	LD1117S50TR	U6
-	-	LD39050P	U7
-	-	LD3985M33R	U12
-	-	MT25QL128ABA1EW9-0SIT	U3
-	-	MT48LC4M32B2B5-6A	U4
-	-	ST890CDR	U8
-	-	STLD40DPUR	U10
-	-	STM32F103CBT6	U14
-	-	STM32F746NGH6U	U5
-	-	STMPS2141STR	U16
-	-	STMPS2151STR	U17
-	-	USB3320C-EZK	U15
-	-	WM8994ECS/R	U11

14.5.1 74LVC1G04SE

Pin	Name	Electrical
1	NC	Passive
2	A	Passive
3	GND	Passive
4	Y	Passive
5	VCC	Passive

14.5.2 EMIF02-USB03F2

Pin	Name	Electrical
A2	Dz	Passive
A3	ID	Passive
B1	Pd1	Passive
B2	Pup	Passive
B3	Vbus	Passive
C1	D+in	Passive
C2	Pd2	Passive
C3	D+out	Passive
D1	D-in	Passive
D2	GND	Passive
D3	D-out	Passive

14.5.3 ESD7383NCTBG

Pin	Name	Electrical
A1	I/O1	Passive
A2	GND	Passive
B1	I/O2	Passive
B2	I/O3	Passive

14.5.4 HT043C

Pin	Name	Electrical
1	VBL-	Passive
2	VBL+	Passive
3	GND	Passive
4	VDD	Passive
5	R0	Passive
6	R1	Passive
7	R2	Passive
8	R3	Passive
9	R4	Passive
10	R5	Passive
11	R6	Passive
12	R7	Passive
13	G0	Passive
14	G1	Passive
15	G2	Passive
16	G3	Passive
17	G4	Passive
18	G5	Passive
19	G6	Passive
20	G7	Passive
21	B0	Passive
22	B1	Passive
23	B2	Passive
24	B3	Passive
25	B4	Passive
26	B5	Passive
27	B6	Passive
28	B7	Passive
29	GND	Passive
30	CLK	Passive
31	DISP	Passive
32	HSYNC	Passive
33	VSYNC	Passive
34	DE	Passive
35	GND	Passive
36	GND	Passive
37	RESET	Passive
38	INT	Passive
39	SCL	Passive
40	SDA	Passive

14.5.5 IMP34DT05TR

Pin	Name	Electrical
1	VDD	Passive
2	LR	Passive
3	CLK	Passive
4	DOUT	Passive
5	GND	Passive

14.5.6 LAN8742A-CZ-TR

Pin	Name	Electrical
1	VDD2A	Passive
2	LED2/nINT/nPME/nINTSEL	Passive
3	LED1/nINT/nPME/REGOFF	Passive
4	XTAL2	Passive
5	XTAL1/CLKIN	Passive
6	VDDCR	Passive
7	RXD1/MODE1	Passive
8	RXD0/MODE0	Passive
9	VDDIO	Passive
10	RXER/PHYAD0	Passive
11	CRS_DV/MODE2	Passive
12	MDIO	Passive
13	MDC	Passive
14	nINT/REFCLK0	Passive
15	nRST	Passive
16	TXEN	Passive
17	TXD0	Passive
18	TXD1	Passive
19	VDD1A	Passive
20	TXN	Passive
21	TXP	Passive
22	RXN	Passive
23	RXP	Passive
24	RBIAS	Passive
25	GND_EP	Passive

14.5.7 LD1117S18TR

Pin	Name	Electrical
1	1	Passive
2	Vout	Passive
3	Vin	Passive
4	Tab	Passive

14.5.8 LD1117S50TR

Pin	Name	Electrical
1	1	Passive
2	Vout	Passive
3	Vin	Passive
4	Tab	Passive

14.5.9 LD39050P

Pin	Name	Electrical
1	EN	Passive
2	GND	Passive
3	PG	Passive
4	VO	Passive
5	NC	Passive
6	VI	Passive
7	GND	Passive

14.5.10 LD3985M33R

Pin	Name	Electrical
1	Vin	Passive
2	GND	Passive
3	CE	Passive
4	BYPASS	Passive
5	Vout	Passive

14.5.11 MT25QL128ABA1EW9-0SIT

Pin	Name	Electrical
1	S#	Passive
2	DQ1	Passive
3	DQ2/W#	Passive
4	VSS	Passive
5	DQ0	Passive
6	C	Passive
7	DQ3/HOLD#	Passive
8	VCC	Passive
9	EPAD	Passive

14.5.12 MT48LC4M32B2B5-6A

Pin	Name	Electrical
A1	DQ26	Passive
A2	DQ24	Passive
A3	VSS	Passive
A7	VDD	Passive
A8	DQ23	Passive
A9	DQ21	Passive
B1	DQ28	Passive
B2	VDDQ	Passive
B3	VSSQ	Passive
B7	VDDQ	Passive
B8	VSSQ	Passive
B9	DQ19	Passive
C1	VSSQ	Passive
C2	DQ27	Passive
C3	DQ25	Passive
C7	DQ22	Passive
C8	DQ20	Passive
C9	VDDQ	Passive
D1	VSSQ	Passive
D2	DQ29	Passive
D3	DQ30	Passive
D7	DQ17	Passive
D8	DQ18	Passive
D9	VDDQ	Passive
E1	VDDQ	Passive
E2	DQ31	Passive
E3	NC	Passive
E7	NC	Passive
E8	DQ16	Passive
E9	VSSQ	Passive
F1	VSS	Passive
F2	DQM3	Passive
F3	A3	Passive
F7	A2	Passive
F8	DQM2	Passive
F9	VDD	Passive
G1	A4	Passive
G2	A5	Passive
G3	A6	Passive
G7	A10	Passive
G8	A0	Passive
G9	A1	Passive
H1	A7	Passive
H2	A8	Passive
H3	NC	Passive
H7	NC	Passive
H8	BA1	Passive
H9	A11	Passive
J1	CLK	Passive
J2	CKE	Passive
J3	A9	Passive
J7	BA0	Passive
J8	CS#	Passive
J9	RAS#	Passive
K1	DQM1	Passive
K2	NU	Passive
K3	NC	Passive
K7	CAS#	Passive
K8	WE#	Passive
K9	DQM0	Passive
L1	VDDQ	Passive
L2	DQ8	Passive
L3	VSS	Passive
L7	VDD	Passive
L8	DQ7	Passive
L9	VSSQ	Passive
M1	VSSQ	Passive
M2	DQ10	Passive
M3	DQ9	Passive
M7	DQ6	Passive
M8	DQ5	Passive
M9	VDDQ	Passive
N1	VSSQ	Passive
N2	DQ12	Passive
N3	DQ14	Passive
N7	DQ1	Passive
N8	DQ3	Passive
N9	VDDQ	Passive
P1	DQ11	Passive
P2	VDDQ	Passive
P3	VSSQ	Passive
P7	VDDQ	Passive
P8	VSSQ	Passive
P9	DQ4	Passive
R1	DQ13	Passive
R2	DQ15	Passive
R3	VSS	Passive
R7	VDD	Passive
R8	DQ0	Passive
R9	DQ2	Passive

14.5.13 ST890CDR

Pin	Name	Electrical
1	IN	Passive
2	IN	Passive
3	ON	Passive
4	GND	Passive
5	SET	Passive
6	OUT	Passive
7	OUT	Passive
8	FAULT	Passive

14.5.14 STLD40DPUR

Pin	Name	Electrical
1	Vi	Passive
2	Rset	Passive
3	GND	Passive
4	FB	Passive
5	NC	Passive
6	Vo	Passive
7	EN	Passive
8	SW	Passive
9	PGND	Passive

14.5.15 STM32F103CBT6

Pin	Name	Electrical
1	VBAT	Power
2	PC13	Bidirectional
3	PC14	Bidirectional
4	PC15	Bidirectional
5	OSCIN	Passive
6	OSCOUT	Output
7	NRST	Passive
8	VSSA	Power
9	VDDA	Power
10	PA0	Bidirectional
11	PA1	Bidirectional
12	PA2	Bidirectional
13	PA3	Bidirectional
14	PA4	Bidirectional
15	PA5	Bidirectional
16	PA6	Bidirectional
17	PA7	Bidirectional
18	PB0	Bidirectional
19	PB1	Passive
20	PB2/BOOT1	Bidirectional
21	PB10	Bidirectional
22	PB11	Bidirectional
23	VSS_1	Power
24	VDD_1	Power
25	PB12	Bidirectional
26	PB13	Bidirectional
27	PB14	Bidirectional
28	PB15	Bidirectional
29	PA8	Bidirectional
30	PA9	Bidirectional
31	PA10	Bidirectional
32	PA11	Bidirectional
33	PA12	Bidirectional
34	JTMS/SWDIO	Bidirectional
35	VSS_2	Power
36	VDD_2	Power
37	JTCK/SWCLK	Bidirectional
38	PA15/JTDI	Bidirectional
39	PB3/JTDO	Bidirectional
40	PB4/JNTRST	Bidirectional
41	PB5	Bidirectional
42	PB6	Bidirectional
43	PB7	Bidirectional
44	BOOT0	Bidirectional
45	PB8	Bidirectional
46	PB9	Bidirectional
47	VSS_3	Power
48	VDD_3	Power

14.5.16 STM32F746NGH6U

Pin	Name	Electrical
A1	PE4	Passive
A2	PE3	Passive
A3	PE2	Passive
A4	PG14	Passive
A5	PE1	Passive
A6	PE0	Passive
A7	PB8	Passive
A8	PB5	Passive
A9	PB4	Passive
A10	PB3	Passive
A11	PD7	Passive
A12	PC12	Passive
A13	PA15	Passive
A14	PA14	Passive
A15	PA13	Passive
B1	PE5	Passive
B2	PE6	Passive
B3	PG13	Passive
B4	PB9	Passive
B5	PB7	Passive
B6	PB6	Passive
B7	PG15	Passive
B8	PG11	Passive
B9	PJ13	Passive
B10	PJ12	Passive
B11	PD6	Passive
B12	PD0	Passive
B13	PC11	Passive
B14	PC10	Passive
B15	PA12	Passive
C1	VBAT	Passive
C2	PI8-ANTI_TAMP2	Passive
C3	PI4	Passive
C4	PK7	Passive
C5	PK6	Passive
C6	PK5	Passive
C7	PG12	Passive
C8	PG10	Passive
C9	PJ14	Passive
C10	PD5	Passive
C11	PD3	Passive
C12	PD1	Passive
C13	PI3	Passive
C14	PI2	Passive
C15	PA11	Passive
D1	PC13-ANTI_TAMP	Passive
D2	PF0	Passive
D3	PI5	Passive
D4	PI7	Passive
D5	PI10	Passive
D6	PI6	Passive
D7	PK4	Passive
D8	PK3	Passive
D9	PG9	Passive
D10	PJ15	Passive
D11	PD4	Passive
D12	PD2	Passive
D13	PH15	Passive
D14	PI1	Passive
D15	PA10	Passive
E1	PC14-OSC32_IN	Passive
E2	PF1	Passive
E3	PI12	Passive
E4	PI9	Passive
E5	PDR_ON	Passive
E6	BOOT0	Passive
E7	VDD3	Passive
E8	VDD11	Passive
E9	VDD10	Passive
E10	VDD15	Passive
E11	VCAP2	Passive
E12	PH13	Passive
E13	PH14	Passive
E14	PI0	Passive
E15	PA9	Passive
F1	PC15-OSC32_OUT	Passive
F2	VSS13-VSS18	Passive
F3	PI11	Passive
F4	VDD13	Passive
F5	VDD17	Passive
F6	VSS3	Passive
F7	VSS11	Passive
F8	VSS10	Passive
F9	VSS15	Passive
F10	VSS2	Passive
F11	VDD2	Passive
F12	PK1	Passive
F13	PK2	Passive
F14	PC9	Passive
F15	PA8	Passive
G1	PH0-OSC_IN	Passive
G2	PF2	Passive
G3	PI13	Passive
G4	PI15	Passive
G5	VDD18	Passive
G6	VSS17	Passive
G10	VSS9	Passive
G11	VDD_USB33	Passive
G12	PJ11	Passive
G13	PK0	Passive
G14	PC8	Passive
G15	PC7	Passive
H1	PH1-OSC_OUT	Passive
H2	PF3	Passive
H3	PI14	Passive
H4	PH4	Passive
H5	VDD5	Passive
H6	VSS5	Passive
H10	VSS20	Passive
H11	VDD20	Passive
H12	PJ8	Passive
H13	PJ10	Passive
H14	PG8	Passive
H15	PC6	Passive
J1	NRST	Passive
J2	PF4	Passive
J3	PH5	Passive
J4	PH3	Passive
J5	VDD12	Passive
J6	VSS12	Passive
J10	VSS8	Passive
J11	VDD8	Passive
J12	PJ7	Passive
J13	PJ9	Passive
J14	PG7	Passive
J15	PG6	Passive
K1	PF7	Passive
K2	PF6	Passive
K3	PF5	Passive
K4	PH2	Passive
K5	VDD4	Passive
K6	VSS4	Passive
K7	VSS6	Passive
K8	VSS7	Passive
K9	VSS1	Passive
K10	VSS14	Passive
K11	VDD14	Passive
K12	PJ6	Passive
K13	PD15	Passive
K14	PB13	Passive
K15	PD10	Passive
L1	PF10	Passive
L2	PF9	Passive
L3	PF8	Passive
L4	PC3	Passive
L5	BYPASS-REG	Passive
L6	VSS19	Passive
L7	VDD19	Passive
L8	VDD6	Passive
L9	VDD7	Passive
L10	VDD1	Passive
L11	VCAP1	Passive
L12	PD14	Passive
L13	PB12	Passive
L14	PD9	Passive
L15	PD8	Passive
M1	VSSA	Passive
M2	PC0	Passive
M3	PC1	Passive
M4	PC2	Passive
M5	PB2	Passive
M6	PF12	Passive
M7	PG1	Passive
M8	PF15	Passive
M9	PJ4	Passive
M10	PD12	Passive
M11	PD13	Passive
M12	PG3	Passive
M13	PG2	Passive
M14	PJ5	Passive
M15	PH12	Passive
N1	VREF-	Passive
N2	PA1	Passive
N3	PA0-WKUP	Passive
N4	PA4	Passive
N5	PC4	Passive
N6	PF13	Passive
N7	PG0	Passive
N8	PJ3	Passive
N9	PE8	Passive
N10	PD11	Passive
N11	PG5	Passive
N12	PG4	Passive
N13	PH7	Passive
N14	PH9	Passive
N15	PH11	Passive
P1	VREF+	Passive
P2	PA2	Passive
P3	PA6	Passive
P4	PA5	Passive
P5	PC5	Passive
P6	PF14	Passive
P7	PJ2	Passive
P8	PF11	Passive
P9	PE9	Passive
P10	PE11	Passive
P11	PE14	Passive
P12	PB10	Passive
P13	PH6	Passive
P14	PH8	Passive
P15	PH10	Passive
R1	VDDA	Passive
R2	PA3	Passive
R3	PA7	Passive
R4	PB1	Passive
R5	PB0	Passive
R6	PJ0	Passive
R7	PJ1	Passive
R8	PE7	Passive
R9	PE10	Passive
R10	PE12	Passive
R11	PE15	Passive
R12	PE13	Passive
R13	PB11	Passive
R14	PB14	Passive
R15	PB15	Passive

14.5.17 STMPS2141STR

Pin	Name	Electrical
1	OUT	Passive
2	GND	Passive
3	FAULT	Output
4	EN	Passive
5	IN	Passive

14.5.18 STMPS2151STR

Pin	Name	Electrical
1	OUT	Passive
2	GND	Passive
3	FAULT	Output
4	EN	Passive
5	IN	Passive

14.5.19 USB3320C-EZK

Pin	Name	Electrical
1	CLKOUT	Passive
2	NXT	Passive
3	D0	Passive
4	D1	Passive
5	D2	Passive
6	D3	Passive
7	D4	Passive
8	REFSEL0	Passive
9	D5	Passive
10	D6	Passive
11	REFSEL1	Passive
12	NC	Passive
13	D7	Passive
14	REFSEL2	Passive
15	SPK_L	Passive
16	SPK_R	Passive
17	CPEN	Passive
18	DP	Passive
19	DM	Passive
20	VDD3.3	Passive
21	VBAT	Passive
22	VBUS	Passive
23	ID	Passive
24	RBIAS	Passive
25	XO	Passive
26	REFCLK	Passive
27	RESETB	Passive
28	VDD1.8	Passive
29	STP	Passive
30	VDD1.8	Passive
31	DIR	Passive
32	VDDIO	Passive
33	GNDPAD	Passive

14.5.20 WM8994ECS/R

Pin	Name	Electrical
A1	SPKGND1	Passive
A2	SPKOUTLP	Passive
A3	SPKMODE	Passive
A4	CIFMODE	Passive
A5	REFGND	Passive
A6	LINEOUTFB	Passive
A7	MICBIAS1	Passive
A8	IN2RP/VRXP	Passive
A9	IN2RN/DMICDAT2	Passive
B1	SPKOUTLN	Passive
B2	SPKVDD1	Passive
B3	SPKOUTRP	Passive
B4	LINEOUT2P	Passive
B5	LINEOUT1P	Passive
B6	MICBIAS2	Passive
B7	IN1RN	Passive
B8	IN2LP/VRXN	Passive
B9	IN2LN/DMICDAT1	Passive
C1	SPKGND2	Passive
C2	SPKVDD2	Passive
C3	SPKOUTRN	Passive
C4	LINEOUT2N	Passive
C5	LINEOUT1N	Passive
C6	DMICCLK	Passive
C7	IN1RP	Passive
C8	IN1LP	Passive
C9	VMIDC	Passive
D1	LDO2VDD	Passive
D2	DBVDD	Passive
D3	MCLK1	Passive
D4	LDO1ENA	Passive
D5	LDO2ENA	Passive
D6	AGND	Passive
D7	IN1LN	Passive
D8	AVDD2	Passive
D9	AVDD1	Passive
E1	GPIO2/MCLK2	Passive
E2	DGND	Passive
E3	LRCLK1	Passive
E4	DACDAT1	Passive
E5	GPIO7/ADCDAT2	Passive
E6	VREFC	Passive
E7	AGND	Passive
E8	AGND	Passive
E9	LDO1VDD	Passive
F1	DCVDD	Passive
F2	ADCDAT1	Passive
F3	SDA	Passive
F4	GPIO4/LRCLK2	Passive
F5	GPIO9/ADCDAT3	Passive
F6	GPIO11/BCLK3	Passive
F7	HP2GND	Passive
F8	HPOUT2P	Passive
F9	HPOUT2N	Passive
G1	BCLK1	Passive
G2	CS/ADDR	Passive
G3	ADCLRCLK1/GPIO1	Passive
G4	GPIO6/ADCLRCLK2	Passive
G5	HPOUT1FB	Passive
G6	HPOUT1R	Passive
G7	CPVOUTP	Passive
G8	CPCA	Passive
G9	CPVDD	Passive
H1	SCLK	Passive
H2	GPIO3/BCLK2	Passive
H3	GPIO5/DACDAT2	Passive
H4	GPIO8/DACDAT3	Passive
H5	GPIO10/LRCLK3	Passive
H6	HPOUT1L	Passive
H7	CPVOUTN	Passive
H8	CPCB	Passive
H9	CPGND	Passive