30
3. Details of hardware
MB86R11
Evaluation Board
MB86R11EVB Hardware Manual
3.2.11.
SDIO
The Base board mounts SD0 1ch as the SDIO interface, and is connected to the SD card slot (CN21).
The power supply to the SD card is controlled with the pin of MB86R11 (see Figure 3-).
Table 3-30 SDIO
No.
Item
Model number
Manufacturer
Quantity
Remarks
1
SD card slot
DM1AA-SF-PEJ
HRS
1
No. SD power supply control pin SD card
Remarks
1 INT_A5 (GPIO19)
SD CH0 0: PWR ON
2 INT_A6 (GPIO20)
SD CH1 0: PWR ON (It is mounted on the Option board.)
3 INT_A7 (GPIO21)
SD CH2 0: PWR ON (It is mounted on the Option board.)
Figure 3-5 SDIO circuit