Data Sheet

20
LS001ONWAS Datasheet
7.1.1 SDIO Interface Signals
Pin Name Type Description
SD_CLK I
SDIO 4-bit Mode: Clock input
SDIO 1-bit Mode: Clock input
SDIO SPI Mode: Clock input
SD_CMD I/O
SDIO 4-bit Mode: Command/response (input/output)
SDIO 1-bit Mode: Command line
SDIO SPI Mode: Data input
SD_D0 I/O
SDIO 4-bit Mode: Data line Bit[0]
SDIO 1-bit Mode: Data line
SDIO SPI Mode: Data output
SD_D1 I/O
SDIO 4-bit Mode: Data line Bit[1]
SDIO 1-bit Mode: Interrupt
SDIO SPI Mode: Interrupt
SD_D2 I/O
SDIO 4-bit Mode: Data line Bit[2] or read wait(optional)
SDIO 1-bit Mode: Read wait (optional)
SDIO SPI Mode: Reserved
SD_D3 I/O
SDIO 4-bit Mode: Data line Bit[3]
SDIO 1-bit Mode: Reserved
SDIO SPI Mode: Card select (active low)
VIO_SD P
1.8V/3.3V Digital SDIO I/O Power Supply
For SDIO 2.0 running at 25/50 MHz clock frequency, VIO_SD must be 3.3V
Luxshare-ICT
Confidential