Carte SD
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Voici à quoi correspondent les différentes broches sur les cartes SD, mini SD et µSD
| SD pin |
miniSD pin |
microSD pin |
Name | I/O | Logic | Description |
|---|---|---|---|---|---|---|
| 1 | 1 | 2 | nCS | I | PP | SPI Card Select [CS] (Negative logic) |
| 2 | 2 | 3 | DI | I | PP | SPI Serial Data In [MOSI] |
| 3 | 3 | VSS | S | S | Ground | |
| 4 | 4 | 4 | VDD | S | S | Power |
| 5 | 5 | 5 | CLK | I | PP | SPI Serial Clock [SCLK] |
| 6 | 6 | 6 | VSS | S | S | Ground |
| 7 | 7 | 7 | DO | O | PP | SPI Serial Data Out [MISO] |
| 8 | 8 | 8 | NC nIRQ |
. O |
. OD |
Unused (memory cards) Interrupt (SDIO cards) (negative logic) |
| 9 | 9 | 1 | NC | . | . | Unused |
| 10 | NC | . | . | Reserved | ||
| 11 | NC | . | . | Reserved |
sources : https://en.wikipedia.org/wiki/Secure_Digital#Transfer_modes