Name: ITEM C 1-Series
Brand: ITEM
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Electrical installation

Page 101

8.10.5 Pin assignment SD/MMC card

Table 40: Pin assignment: SD card

Pin No

Denomination

SD Mode

SPI Mode

1 DATA3/CS Data Line 3 (Bit 3) Chip Select

2 CMD/DI Command/Response Host to Card Commands and Data

3 Vss1 Supply Voltage Ground Supply Voltage Ground

4 Vcc Supply Voltage Supply Voltage

5 CLK Clock Clock

6 Vss2 Supply Voltage Ground Supply Voltage Ground

7 DAT0/DO Data Line 0 (Bit 0) Card to Host Data and Status

8 DAT1 Data Line 1 (Bit 1) reserved

9 DAT2 Data Line 2 (Bit 2) reserved

Table 41: Pin assignment: MMC card

Pin No

Denomination

SD Mode

SPI Mode

1 RES/CS Not connected or Always „1“ Chip Select

2 CMD/DI Command/Response Host to Card Commands and Data

3 Vss1 Supply Voltage Ground Supply Voltage Ground

4 Vcc Supply Voltage Supply Voltage

5 CLK Clock Clock

6 Vss2 Supply Voltage Ground Supply Voltage Ground

7 DAT/DO Data 0 Card to Host Data and Status

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ITEM C 1-Series Specifications

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