M13design M13-RA6M3-EK, User Manual, Page: 21 / 52

User Manual - Rev1.0.2 M13-RA6M3-EK pin assignment
M13design - 16 Dec. 21 21/53
3.6 SD/MMC HOST INTERFACE (4-BITS)
The M13-RA6M3-EK board embarks a microSD card connector which is connected to the RA6M3’s
SD/MMC Host Interface on channel 1 as shown in Figure 10 and Table 21 and uses a 4-bit wide
interface. The SD card detection and write protection signals are not mapped and not used.
Figure 10.SD/MMC Host Interface Diagram
Table 21. SD/MMC Interface Pin Assignment
U1 Pin RA6M3 Pin Functions
Board
Assignment
Signal Name
Default
Function
Remarks
140 P500 / SD1CLK_A / QSPCLK JP3 SD1CLK_A QSPI Multiplexed
141 P501 / SD1CMD_A / QSSL JP4 SD1CMD_A QSPI Multiplexed
142 P502 / SD1DAT0_A / QIO0 JP5 SD1DAT0_A QSPI Multiplexed
143 P503 / SD1DAT1_A / QIO1 JP6 SD1DAT1_A QSPI Multiplexed
144 P504 / SD1DAT2_A / QIO2 JP7 SD1DAT2_A QSPI Multiplexed
145 P505 / SD1DAT3_A / QIO3 JP8 SD1DAT3_A QSPI Multiplexed
The microSD card is connected to the RA6M3 through the JP3-JP8 jumpers. See Section 5.2 SD CARD
for detailed information on multiplexing the P500-P505 signals.
MICRO SDCARD
RA6M3
SD1CMD_A / QSSL / P501
SD1CLK_A / QSPCLK / P500
SD1DAT0_A / QIO0 / P502
SD1DAT1_A / QIO1 / P503
SD1DAT2_A / QIO2 / P504
SD1DAT3_A / QIO3 / P505
140
141
142
143
144
145
DAT2
DAT3/CD
CMD
CLK
DAT0
DAT1
CARD DETECT
COMMON
CARD DETECT
COMMON
VDD
VSS
1
2
3
5
7
8
9
10
11
12
4
6
CN10
693071010811
C79
100nF
3V3D
R
55
22
K
R
56
22
K
R
57
22
K
R
58
22
K
R
59
22
K
3V3D
SD1DAT2_A SD1DAT2_A
SD1DAT0_A SD1DAT0_A
SD1CLK_A
SD1CMD_A SD1CMD_A
SD1DAT1_A SD1DAT1_A
SD1DAT3_A SD1DAT3_A