9 pin Secure Digital Card
The Secure Digital memory card is a memory specifically developed to meet security requirements which have appeared in the field of electronic audio and video devices. It includes a Copyright protection mechanism which complies with the SDMI standard (Secure Digital Music Initiative). The file protection and encryption system (CPRM: Content Protection for Recordable Media) is integrated into the SD card. The SD card’s interface supports standard MMC card operations.
| Pin | SD Mode | SPI Mode |
|---|---|---|
| Name | Type | Description |
| 1 | CD/DAT3 | I/O/PP |
| 2 | CMD | PP |
| 3 | Vss1 | S |
| 4 | Vdd | S |
| 5 | CLK | I |
| 6 | Vss2 | S |
| 7 | DAT0 | I/O/PP |
| 8 | DAT1 | I/O/PP |
| 9 | DAT2 | I/O/PP |
References
- DANE-ELEC Datasheet (pdf link)
- KINGMAX Datasheet (pdf link)
- SYCARD Datasheet (pdf link)