Pin
Pin name
Signal name
18
+5V
5V_VIN
19
DET
HPD
6.13
Wi
‑
Fi
®
and Bluetooth
®
Low Energy
6.13.1
Description
The STM32MP157F-DK2 Discovery kit support Wi
‑
Fi
®
802.11b/g/n and Bluetooth
®
Low Energy (BLE) V4.1.
These functions are supported with the Wi
‑
Fi
®
/BLE module. This module is driven by a SDIO for the Wi
‑
Fi
®
interface, and a USART for the Bluetooth
®
. The PCM format is used for audio data.
6.13.2
Operating voltage
The Wi
‑
Fi
®
/BLE module supports the 3.3 V voltage range.
6.13.3
Wi
‑
Fi
®
I/O interface
describes the I/O configuration for the Wi
‑
Fi
®
interface.
Table 17.
I/O configuration for the Wi
‑
Fi
®
interface
I/O
Configuration
PB4
PB4 is connected to SDMMC2_D3
PB3
PB3 is connected to SDMMC2_D2
PB15
PB15 is connected to SDMMC2_D1
PB14
PB14 is connected to SDMMC2_D0
PG6
PG6 is connected to SDMMC2_CMD
PE3
PE3 is connected to SDMMC2_CK
PH4
PH4 is connected to WL_REG_ON
PD0
PD0 is connected to WL_HOST_WAKE
6.13.4
Bluetooth
®
Low Energy I/O interface
describes the I/O configuration for the Bluetooth
®
Low Energy interface.
Table 18.
I/O configuration for the Bluetooth
®
Low Energy interface
I/O
Configuration
PD5
PD5 is connected to USART2_TX
PD6
PD6 is connected to USART2_RX
PD4
PD4 is connected to USART2_RTS
PD3
PD3 is connected to USART2_CTS
PZ3
PZ3 is connected to BT_PCM_WS
PZ2
PZ2 is connected to BT_PCM_SDO
PZ1
PZ1 is connected to BT_PCM_SDI
PZ0
PZ0 is connected to BT_PCM_CK
PZ6
PZ6 is connected to BT_REG_ON
UM2637
Wi
‑
Fi® and Bluetooth® Low Energy
UM2637
-
Rev 2
page 21/47