ST STM32U575I-EV, User Manual, Page: 59 / 105

7.24 Octo
‑
SPI1
7.24.1 Description
The STM32U575I-EV Evaluation board embeds the possibility to evaluate more Octo
‑
SPI memory devices. Two
2x10
‑
pin high
‑
speed socket connectors are available to support the MB1242 ST memory daughterboard. One
MB1242 with Octo
‑
SPI PSRAM memory is included on the STM32U575I-EV Evaluation board.
7.24.2 Operating voltage
Depending on the MB1242 daughterboard and Octo
‑
SPI memory used, the Octo
‑
SPI1 interface is compatible
with the VDD_MCU voltage range from 1.71 to 3.6 V.
7.24.3 Octo
‑
SPI1 I/O interface
Table 45 describes the hardware configuration for the Octo
‑
SPI1 interface of the external MB1242 daughterboard.
Table 45. Hardware I/O configuration for the Octo
‑
SPI1 interface for the external MB1242 daughterboard
I/O Hardware
Setting
(1) Configuration
PA2 R151
ON
PA2 is connected to Octo
‑
SPI1 as Chip Select (Active low) mainly for the
Octo
‑
SPI PSRAM configuration.
OFF
PA2 is NOT connected to Octo
‑
SPI1.
PA2 can be used for motor control.
PI5
SB112
JP20[2-3]
ON
PI5 is connected to Octo
‑
SPI1 as Chip Select (Active low) mainly for
Octo
‑
SPI Flash configuration.
OFF
PI5 is NOT connected to Octo
‑
SPI1 Flash.
PI5 can be used for the camera.
PA3 R150
ON PA3 is connected to Octo
‑
SPI1 as CLK_P.
OFF
PA3 is NOT connected to Octo
‑
SPI.
PA3 can be used for OpAmp or motor control.
PB12 SB47
ON PB12 is connected to Octo
‑
SPI1 as CLK_N.
OFF
PB12 is NOT connected to Octo
‑
SPI1
PB12 can be used for smartcard or motor control
PB2 R148
ON PB2 is connected to Octo
‑
SPI1 as DQS
OFF
PB2 is NOT connected to Octo
‑
SPI1.
PB2 can be used for motor control.
PB1 R155
ON PB1 is connected to Octo
‑
SPI1 as IO0.
OFF
PB1 is NOT connected to Octo
‑
SPI1.
PB1 can be used for motor control.
PB0 R152
ON PB0 is connected to Octo
‑
SPI1 as IO1.
OFF
PB0 is NOT connected to Octo
‑
SPI1.
PB0 can be used for motor control.
PA7 R159
ON PA7 is connected to Octo
‑
SPI1 as IO2.
OFF
PA7 is NOT connected to Octo
‑
SPI1.
PA7 can be used for motor control.
PA6 R158
ON PA6 is connected to Octo
‑
SPI1 as IO3
OFF
PA6 is NOT connected to Octo
‑
SPI1.
PA6 can be used for motor control.
PC1 R163
ON PC1 is connected to Octo
‑
SPI1 as IO4.
STM32U575I-EV
Octo
‑
SPI1
UM2854 - Rev 1
page 59/105