Hardware Manual: emSTAMP- emSBC-Argon (Rev1)
24/35
6
Functional Description of the Single-Board-Computer (emSBC-Argon)
6.1
eMMC NAND-Flash
To store the operating system and application data, an eMMC NAND Flash is provided on the
emSBC-Argon board. It is connected to the SDMMC2 interface of the STM32MP157 processor. The
NAND Flash size can be between 4GB and 32GB depending on the ordering code.
Please contact emtrion GmbH for your required NAND Flash size.
The onboard eMMC device can be reset either by the global reset signal RESET_MOCI# or by the
EMMC_RST# signal at GPIO-PF14. At the STM32MP157 the GPIO-PF14 is configured as output. A
low of the signal EMMC_RST# resets the eMMC-NAND Flash device.
The eMMC-device can also be used as boot-device. Please refer to the chapter 6.11 “Boot
configuration DIP-Switch” for more information how to set the appropriate boot-configuration.
Module Pin
CPU Pin Name
Signal
Direction
(module view )
Termination
101
PB14
SDMMC2_D0
I/O
102
PB15
SDMMC2_D1
I/O
103
PB3
SDMMC2_D2
I/O
104
PB4
SDMMC2_D3
I/O
105
PA8
SDMMC2_D4
I/O
106
PA9
SDMMC2_D5
I/O
107
PE5
SDMMC2_D6
I/O
108
PC7
SDMMC2_D7
I/O
98
PE3
SDMMC2_CK
O
PU 10k
99
PG6
SDMMC2_CMD
O
PU 4k7
89
PF14
EMMC_RST#
O
