User guide

Evaluation Kit Hardware
4-56 Evaluation Kit (EK) User Guide
11115A–ATARM–27-Jul-11
4.3.5.10 MicroSD MCI0
Figure 4-44. MicroSD Socket J6
4.3.5.11 SD/MMC MCI1
Figure 4-45. SD/MMC Socket J7
Table 4-30. MicroSD Socket J6 Signal Descriptions
Pin Mnemonic Description
1 DAT2 Data Bit 2
2 CD/DAT3 Card Detect/Data Bit 3
3 CMD Command Line
4 VCC Supply Voltage 3.3V
5 CLK Command Line
6 VSS Common ground
7 DAT0 Data Bit 0
8 DAT1 Data Bit 1
9 SW1 No use, grounded
10 CARD DETECT CARD DETECT
Table 4-31. SD Socket J7 Signal Descriptions
Pin Mnemonic PIO
Signal
MMC Card
SD Card
1-Bit Mode 4-Bit Mode
1 MCI1_DA2 PA3 Not Used Read Wait (RW) Data Line DAT2 or Read Wait (RW)
2 MCI1_DA3 PA4 Reserved Not Used Data Line DAT3
3 MCI1_CDA PA12 Command/Response
4 VDDIOP0 Supply Voltage (3.3-volts) VDDIOP0