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STM32MP157D Scheda tecnica(PDF) 27 Page - STMicroelectronics

Il numero della parte STM32MP157D
Spiegazioni elettronici  Arm® dual Cortex®-A7 800 MHz Cortex®-M4 MPU, 3D GPU, TFT/DSI, 37 comm. interfaces, 29 timers, adv. analog
PDF  259 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32MP157D Scheda tecnica(HTML) 27 Page - STMicroelectronics

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DS12504 Rev 5
27/259
STM32MP157A/D
Functional overview
58
3.7
Boot modes
At startup, the boot source used by the internal BootROM is selected by the BOOT pin and
OTP bytes.
Table 2. Boot modes
BOOT2 BOOT1 BOOT0
Initial boot mode
Comments
0
0
0
UART and USB(1)
Wait incoming connection on:
– USART2/3/6 and UART4/5/7/8 on default pins
– USB high-speed device(2)
0
0
1
Serial NOR Flash(3)
Serial NOR Flash on QUADSPI(4)
01
0
e•MMC(3)
e•MMC on SDMMC2 (default)(4)(5)
01
1
NAND Flash(3)
SLC NAND Flash on FMC
1
0
0
Reserved (NoBoot)
Used to get debug access without boot from Flash memory
10
1
SD card(3)
SD card on SDMMC1 (default)(4)(5)
1
1
0
UART and USB(1)(3)
Wait incoming connection on:
– USART2/3/6 and UART4/5/7/8 on default pins
– USB high-speed device on OTG_HS_DP/DM pins(2)
1
1
1
Serial NAND Flash(3)
Serial NAND Flash on QUADSPI(4)
1. can be disabled by OTP settings.
2. USB requires 24 MHz HSE clock/crystal if OTP is not programmed for different frequency.
3. Boot source can be changed by OTP settings (e.g. initial boot on SD card, then e•MMC with OTP settings).
4. Default pins can be altered by OTP.
5. Alternatively, another SDMMC1 or SDMMC2 interface than this default can be selected by OTP.



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