Product Info

Automotive Module Series
AG521R-NA QuecOpen Hardware Design
AG521R-NA_QuecOpen_Hardware_Design 54 / 104
The following is a reference design of SDIO interface for eMMC application.
SDIO_VDD
60
PI
SDIO power supply
Connect it to VDD_EXT.
SDC1_DATA_0
49
IO
SDIO data bit 0
1.8 V power domain for eMMC.
SDC1_DATA_1
50
IO
SDIO data bit 1
SDC1_DATA_2
51
IO
SDIO data bit 2
SDC1_DATA_3
52
IO
SDIO data bit 3
SDC1_CMD
48
IO
SDIO command
SDC1_DATA_4
53
IO
SDIO data bit 4
1.8 V power domain.
For eMMC configuration by default.
Can be configured to GPIO.
SDC1_DATA_5
55
IO
SDIO data bit 5
SDC1_DATA_6
56
IO
SDIO data bit 6
SDC1_DATA_7
58
IO
SDIO data bit 7
SDC1_CLK
47
DO
SDIO clock
1.8 V power domain for eMMC.
EMMC_RST
54
DO
eMMC reset
1.8 V power domain.
EMMC_PWR_EN
45
DO
eMMC power supply
enable control