Renesas RZ/A Series - SD Card Interface

RZ/A2M SUB Board RTK79210XXB00000BE 2. Function specifications
R20UT4398EJ0100 Rev.1.00 2-35
2018.10.11
2.12 SD Card Interface
RTK79210XXB00000BE is equipped with 4-bit SD card slot, and it connects to the channel 1 of the RZ/A2M on-chip
SD/MMC host interface (SDHI).
Figure 2.12.1 shows the SD card interface block diagram.
Figure 2.12.1 SD Card Interface Block Diagram
RZ/A2M (U1)
SD1_CLK
SD1_CMD
SD1_DAT[3:0]
8
CLK
CMD
D[3:0]
CLK
D[3:0]
SD card slot（CN10）
CLK
DAT[3:0]
VDD
CMD
CMD
CD
Card_DetectP5_4 / SD1_CD
CD
P5_5 / SD1_WP
WP
CD=0 : Card Inserted
WP
W_Protect
WP=0 : Unlock
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
Note: Red text indicates a function used.
：Indicates a function not implemented .
：Indicates a SUB board.