Microchip Technology SAMA7G54-EK, User Manual

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Figure 3-50. SD Card Reset Schematic
VDD_SDCARD
VDD_3V3
47uF
16V
1206
C125
GND
VOUT
1
GND
2
VIN 3
EN 4
MIC94085YFT
U7
1
2
3
BAT54AL
D5 GND
10k
0402
1%
R109
SDMMC1_RSTN_PB28
0402
R119
NRST_OUT
The table below describes the pin assignment of the SD/MMC interface.
Table 3-40. SD/MMC Pin Assignment
PIO Signal Name Shared With Signal Description
PB28 SDMMC1_RSTN_PB28 – SD Card reset signal
PB29 SDMMC1_CMD_PB29 – SD Card command line
PB30 SDMMC1_CK_PB30 – SD Card clock signal
PB31 SDMMC1_DAT0_PB31 – SD Card data line 0
PC0 SDMMC1_DAT1_PC0 – SD Card data line 1
PC1 SDMMC1_DAT2_PC1 – SD Card data line 2
PC2 SDMMC1_DAT3_PC2 – SD Card data line 3
PC3 SDMMC1_WP_PC3 – SD Card connector write protect signal
PC4 SDMMC1_CD_PC4 – SD Card card detect
PC5 SDMMC1_1V8SEL_PC5 – SD Card signal voltage selection
NRST_OUT NRST_OUT – Microprocessor reset output
3.4.11 Secure Element - CryptoAuthentication
™
The ECC608B is a member of the Microchip CryptoAuthentication family of high-security cryptographic devices which
combine a world-class hardware-based key storage with hardware cryptographic accelerators to implement various
authentication and encryption protocols.
The ECC608B includes an EEPROM array which can be used for storage of up to 16 keys, certificates,
miscellaneous read/write, read-only or secret data, consumption logging, and security configurations. Access to
the various memory sections can be restricted in a variety of ways and the configuration can be locked to prevent
changes.
For more details about ECC608B, refer to the product web page .
Table 3-41. ECC608B PIO Signal Descriptions
PIO MPU Signal Name Device Signal Name Shared With
Signal
Description
PC14 FLEXCOM8_IO0_PC14 ECC608_TWD MIPI CSI camera TWI data
PC13 FLEXCOM8_IO1_PC13 ECC608_TWCK MIPI CSI camera TWI clock
SAMA7G54-EK
Function Blocks
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2022 Microchip Technology Inc.
and its subsidiaries
User Guide
DS50003273A-page 58