
7.23.3
Octo
‑
SPI2 Flash I/O interface
describes the hardware configuration for the Octo
‑
SPI2 interface.
Table 44.
Hardware I/O configuration for the Octo
‑
SPI2 Flash interface
I/O
Hardware
Setting
Configuration
PI5
SB112
JP20[1-2]
ON
PI5 is connected to Octo-SPI2 FLASH as NCS
OFF
PI5 is NOT connected to Octo-SPI2 FLASH
PI5 can be used for CAMERA
PH6
R179
ON
PH6 is connected to Octo-SPI2 FLASH as CLK
OFF
No other muxing
PH4
R178
ON
PH4 is connected to Octo-SPI2 FLASH as DQS
OFF
No other muxing
PI3
SB98
ON
PI3 is connected to Octo-SPI2 FLASH as IO0
OFF
PI3 is NOT connected to Octo-SPI2 FLASH
PI3 can be used for CAMERA
PI2
SB101
ON
PI2 is connected to Octo-SPI2 FLASH as IO1
OFF
PI2 is NOT connected to Octo-SPI2 FLASH
PI2 can be used for CAMERA
PI1
R177
ON
PI1 is connected to Octo-SPI2 FLASH as IO2
OFF
No other muxing
PH8
SB96
ON
PH8 is connected to Octo-SPI2 FLASH as IO3
OFF
PH8 is NOT connected to Octo-SPI2 FLASH
PH8 can be used for CAMERA
PH9
SB95
ON
PH9 is connected to Octo-SPI2 FLASH as IO4
OFF
PH9 is NOT connected to Octo-SPI2 FLASH
PH9 can be used for CAMERA
PH10
SB97
ON
PH10 is connected to Octo-SPI2 FLASH as IO5
OFF
PH10 is NOT connected to Octo-SPI2 FLASH
PH10 can be used for CAMERA
PH11
SB99
ON
PH11 is connected to Octo-SPI2 FLASH as IO6
OFF
PH11 is NOT connected to Octo-SPI2 FLASH
PH11 can be used for CAMERA
PH12
SB100
ON
PH12 is connected to Octo-SPI2 FLASH as IO7
OFF
PH12 is NOT connected to Octo-SPI2 FLASH
PH12 can be used for CAMERA
NRST
R211
ON
NRST is connected to OctoSPI2 FLASH RESETN pin
1. The default configuration is shown in bold.
7.23.4
I/O restriction to other features
Caution:
Due to the sharing of some I/Os of STM32U575AII6Q by multiple peripherals, the following limitations apply in
using the Octo
‑
SPI2 Flash features:
•
The Octo
‑
SPI Flash function cannot be operated simultaneously with the camera daughterboard. There is
no older bridge for the camera interface. It is recommended to remove the camera daughterboard to use
the Octo
‑
SPI2 Flash device.
STM32U575I-EV
Octo
‑
SPI2 Flash memory device
UM2854
-
Rev 1
page 58/105