Data Sheet

Bluegiga Technologies Oy
Page 31 of 52
6.5 SDIO / SPI / MMC
Pin#
SDIO/SD/MMC
SPI mode
Net name
51
Card detect
SSP0_DETECT
52
Data 0
MISO
SSP0_DATA0
53
Data 1
SSP0_DATA1
54
Data 2
SSP0_DATA2
55
Data 3
Slave Select
SSP0_DATA3
56
Command
MOSI
SSP0_CMD
57
Clock
Clock
SSP0_SCK
58
Ground
GND
Table 37: SDIO/SPI/MMC
The Synchronous Serial Port subsystem provides support for MMC cards, SD cards, SDIO devices, SPI
master and slave communication and eMMC 4.4 devices. In a standard configuration 1-bit and 4-bit modes for
MMC/SD/SDIO/eMMC is available. On versions without Wi-Fi support the 8-bit mode can also be configured.
For use with removable cards, a hardware card detect pin is provided.
For further information, please refer to the i.MX28 Applications Processor Reference Manual, chapter 17.