Microsd And Microsim (J12); Table 9: Pin Assignment Microsim Combo Socket; Figure 11: Combo Connector For Microsd And Microsim - Kontron pITX-iMX8M User Manual

6.3. MicroSD and MicroSIM (J12)

The pITX-iMX8M board supports micro SD cards via micro SD/micro SIM combo connector.
The micro SD card interface supports the following transfer modes:
 SD 1-bit
 SD 4-bit
 SD/SDIO full speed mode up to 25 MHz
 SD/SDIO high speed mode up to 50 MHz
 SD/SDIO UHS-I mode up to 208 MHz in SDR mode and up to 50 MHz in DDR mode.
Micro SD Card write protection switchable via SW2: 1-4

Figure 11: Combo Connector for MicroSD and MicroSIM

Table 9: Pin Assignment MicroSIM Combo Socket

Pin Function
S1 V_UIM_PWR
S2 UIM_RST
S3 UIM_CLK
S4
NC
S5 GND
S6 NC
S7 UIM_DATA
S8 NC
T1 SDIO_DAT2
T2 SDIO_DAT3
T3 SDIO_CMD
T4
V_3V3_SD
T5 SDIO_CLK
T6
GND
T7 SDIO_DAT0
Direction
Power
Out
Out
Ground
In/Out
In/Out
In/Out
In/Out
Power
In/Out
Ground
In/Out
Description
+3.3V
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pITX-iMX8M – Rev. 1.1
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