ST STM32U575I-EV, Руководство пользователя, Страница: 79 / 105

• Pmod
™
cannot be operated simultaneously with the STMod+ function.
• Pmod
™
cannot be operated simultaneously with the UCPD function.
• Pmod
™
cannot be operated simultaneously with the ADC/DAC function.
• Pmod
™
cannot be operated simultaneously with the motor-control function.
• Pmod
™
cannot be operated simultaneously with the TRACE function.
• Pmod
™
cannot be operated simultaneously with the SDIO function.
• Pmod
™
cannot be operated simultaneously with the Tamper-Key function.
• Pmod
™
cannot be operated simultaneously with the RS-232 function.
• Pmod
™
cannot be operated simultaneously with the optional I2C3 function.
7.32 STMod+ connector
7.32.1 Description
The CN7 standard 20
‑
pin STMod+ connector is available on the STM32U575I-EV Evaluation board to support
flexibility in small form factor applications. The STMod+ expansion connector supports the MB1280 fan-out
expansion board for Wi
‑
Fi
®
, Grove, and mikroBUS
™
compatible connectors.
For more detailed information about the MB1280 fan-out expansion board, refer to the user manual STMod+
fan-out expansion board for STM32 Discovery kits and Evaluation boards ( UM2695 ).
7.32.2 Operating voltage
The STMod+ connector is directly supplied by 5 V. The STM32U575I-EV Evaluation board I/O level can be set
according to the 3.3 V STMod+ connector. The fan-out board also embeds a 3.3 V regulator and I
2
C level shifters.
For more detailed information, refer to the STMicroelectronics fan-out board user manual and relevant datasheets
of associated daughterboards.
7.32.3 STMod+ I/O interface
The STMod+ connector supports several interface configurations:
•
SPI interface: NSS, MOSI, MISO, SCK
• UART interface: TX, RX, CTS, RTS
• mikroBUS
™
interface: NSS, TX, RX, SCK
• But also I
2
C, one ADC, one PWM, and some more I/Os
To support the selection of SPI or UART function connection on STMod+, a quad
‑
SPDT switch is added on the
board. This switch is controlled manually.
Table 61 describes the SW2 configuration to select the STMod+ interface.
Table 61. SW2 configuration for STMod+ interface
Hardware SW2 [2-1]
(1) Interface
00 SPI interface selected
01
mikroBUS
™
interface selected
10 Not used
11 UART interface selected
1. The default configuration is in bold.
Table 62 describes the hardware configuration for the STMod+ interface.
STM32U575I-EV
STMod+ connector
UM2854 - Rev 1
page 79/105