Related Information
on page 11-2
For more information on what is supported, go to the MMC Support Matrix table.
SD Card Support Matrix
Table 11-1: SD Card Support Matrix
Bus Speed Modes Supported
Bus Modes Supported
Voltages
Supported
Device Card
Type
SDR25
(28)
SDR12
High
Speed
Default
Speed
25 MBps 50
MHz
12.5 MBps
25 MHz
25 MBps
50 MHz
12.5 MBps
25 MHz
8 bit
4 bit
1 bit
SPI
1.8
V
(29)
3.3 V
√
√
√
√
√
SDSC
(SD)
√
√
√
√
√
√
√
√
√
SDHC
√
√
√
√
√
√
√
√
√
SDXC
√
√
√
√
√
√
√
√
√
eSD
√
√
√
√
√
√
√
√
√
SDIO
√
√
√
√
√
√
√
√
√
√
eSDIO
Card form factors (such as mini and micro) are not enumerated in the above table because they do
not impact the card interface functionality.
Note:
MMC Support Matrix
Table 11-2: MMC Support Matrix
Bus Speed Modes
Supported
Bus Modes Supported
Voltages
Supported
Max Data
Rate
(MBps)
Max Clock
Speed
(MHz)
Card Device
Type
High Speed
Default
Speed
8 bit
4 bit
1 bit
SPI
(30)
1.8 V
3.3 V
√
√
√
√
2.5
20
MMC
√
√
√
√
√
√
10
20
RSMMC
√
√
√
√
√
√
25
50
(31)
MMCPlus
√
√
√
√
√
6.5
50
MMCMobile
(28)
SDR25 speed mode requires 1.8-V signaling. Note that even if a card supports UHS-I modes (for example
SDR50, SDR104, DDR50) it can still communicate at the lower speeds (for example SDR12, SDR25).
(29)
Where supported, controls the voltage switch output to support 1.8-V signalling for SD.
(30)
SPI mode is obsolete in the MMC 4.41 specification.
(31)
Supports a maximum clock rate of 50 MHz instead of 52 MHz (specified in MMC specification).
SD/MMC Controller
Altera Corporation
cv_54011
SD Card Support Matrix
11-2
2013.12.30