50.12.7 SDMMC Response Register x
| Name: | SDMMC_RRx |
| Offset: | 0x10 + x*0x04 [x=0..3] |
| Reset: | 0x00000000 |
| Property: | Read/Write |
| Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
| CMDRESP[31:24] | |||||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
| CMDRESP[23:16] | |||||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| CMDRESP[15:8] | |||||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| CMDRESP[7:0] | |||||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
Bits 31:0 – CMDRESP[31:0] Command Response
The table below describes the mapping of command responses from the SD_SDIO/e.MMC bus to these registers for each responses type. In this table, R[] refers to a bit range of the response data as transmitted on the SD_SDIO/e.MMC bus.
| Type of Response | Meaning of Response | Response Field | Response Register |
|---|---|---|---|
| R1, R1b (normal response) | Card Status | R[39:8] | SDMMC_RR0[31:0] |
| R1b (Auto CMD12 response) | Card Status for Auto CMD12 | R[39:8] | SDMMC_RR3[31:0] |
| R1 (Auto CMD23 response) | Card Status for Auto CMD23 | R[39:8] | SDMMC_RR3[31:0] |
| R2 (CID, CSD register) | CID or CSD register | R[127:8] | SDMMC_RR0[31:0] SDMMC_RR1[31:0] SDMMC_RR2[31:0] SDMMC_RR3[23:0] |
| R3 (OCR register) | OCR register for memory | R[39:8] | SDMMC_RR0[31:0] |
| R4 (OCR register) | OCR register for I/O | R[39:8] | SDMMC_RR0[31:0] |
| R5, R5b | SDIO response | R[39:8] | SDMMC_RR0[31:0] |
| R6 (Published RCA response) | New published RCA[31:16] and Card status bits | R[39:8] | SDMMC_RR0[31:0] |