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Multimedia Card Registers
18.5 Multimedia Card Registers
CAUTION
The MMC/SD/SDIO registers are limited to 32-bit data accesses. 16-bit and 8-
bit are not allowed and can corrupt register content.
18.5.1 MULTIMEDIA_CARD Registers
Table 18-19 lists the memory-mapped registers for the MULTIMEDIA_CARD. All register offset addresses
not listed in Table 18-19 should be considered as reserved locations and the register contents should not
be modified.
Table 18-19. MULTIMEDIA_CARD REGISTERS
Offset Acronym Register Name Section
110h SD_SYSCONFIG Section 18.5.1.1
114h SD_SYSSTATUS Section 18.5.1.2
124h SD_CSRE Section 18.5.1.3
128h SD_SYSTEST Section 18.5.1.4
12Ch SD_CON Section 18.5.1.5
130h SD_PWCNT Section 18.5.1.6
200h SD_SDMASA Section 18.5.1.7
204h SD_BLK Section 18.5.1.8
208h SD_ARG Section 18.5.1.9
20Ch SD_CMD Section 18.5.1.10
210h SD_RSP10 Section 18.5.1.11
214h SD_RSP32 Section 18.5.1.12
218h SD_RSP54 Section 18.5.1.13
21Ch SD_RSP76 Section 18.5.1.14
220h SD_DATA Section 18.5.1.15
224h SD_PSTATE Section 18.5.1.16
228h SD_HCTL Section 18.5.1.17
22Ch SD_SYSCTL Section 18.5.1.18
230h SD_STAT Section 18.5.1.19
234h SD_IE Section 18.5.1.20
238h SD_ISE Section 18.5.1.21
23Ch SD_AC12 Section 18.5.1.22
240h SD_CAPA Section 18.5.1.23
248h SD_CUR_CAPA Section 18.5.1.24
250h SD_FE Section 18.5.1.25
254h SD_ADMAES Section 18.5.1.26
258h SD_ADMASAL Section 18.5.1.27
25Ch SD_ADMASAH Section 18.5.1.28
2FCh SD_REV Section 18.5.1.29
3389
SPRUH73H–October 2011–Revised April 2013 Multimedia Card (MMC)
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