STM32MP157C datasheet(63/258 Pages) STMICROELECTRONICS

63 / 258 page

DS12505 Rev 2

63/258

STM32MP157C

Pinouts, pin description and alternate functions

122

Table 6. Legend/abbreviations used in the pinout table

Name

Abbreviation

Definition

Pin name

Unless otherwise specified, the pin function during and after reset is the same as the actual pin

name

Pin type

Supply pin

Input only pin

Output only pin

I/O

Input / output pin

Analog or special level pin

I/O structure

FT(U/D/PD)

5 V tolerant I/O (with fixed pull-up / pull-down / programmable pull-down)

3.6 V tolerant I/O directly connected to DAC

DDR

1.5 V, 1.35 V or 1.2 V I/O for DDR3, DDR3L, LPDDR2/LPDDR3 interface

DSI

1.2 V I/O for DSI interface

Analog signal

RST

Reset pin with weak pull-up resistor

Option for TT or FT I/Os

_f(1)

I2C FM+ option

_a(2)

Analog option (supplied by VDDA for the analog part of the I/O)

_u(3)

USB option (supplied by VDD3V3_USBxx for the USB part of the I/O)

_h(4)

High-speed output for 1.8V typ. VDD (for SPI, SDMMC, QUADSPI, TRACE)

_e(5)

Very-high-speed option for 1.8V typ. VDD (for ETH, SPI, SDMMC, QUADSPI,

TRACE)

Notes

Unless otherwise specified by a note, all I/Os are set as floating inputs during and after reset

Alternate

functions

Functions selected through GPIOx_AFR registers

Additional

functions

Functions directly selected/enabled through peripheral registers

1. The related I/O structures in Table 7 are: FT_f, FT_fae, FT_fh, FT_fha, FT_uf

2. The related I/O structures in Table 7 are: FT_a, TT_a, FT_ae, FT_fae, FT_fha, FT_ha, TT_ha

3. The related I/O structures in Table 7 are: FT_u, FT_uf

4. The related I/O structures in Table 7 are: FT_h, FT_fh, FT_fha, FT_ha, TT_ha

5. The related I/O structures in Table 7 are: FT_e, FT_ae, FT_fae

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