diff -r 578be2adaf3e -r 307f4279f433 Adaptation/GUID-BDF1F32B-796B-4D3D-9C91-43FF8E9DDAF9.dita --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Adaptation/GUID-BDF1F32B-796B-4D3D-9C91-43FF8E9DDAF9.dita Fri Oct 15 14:32:18 2010 +0100 @@ -0,0 +1,63 @@ + + + + + +SDIO +Commands TutorialLists commands to the SD bus that are specific to SDIO. +

The SDIO hardware interface extends the functionality of SD devices. The +combination of SD card with I/O is usually found in devices that can be ported +easily and make heavy demands on memory.

+SDIO Hardware +Interface + + + +Supported SDIO Command +Interface functions +Description + + + + +

CMD5

+

IO_OP_COND

+

Used during initialization to determine the presence of an SDIO +card and set the voltage.

+
+ +

CMD52

+

IO_RW_DIRECT

+

Used to address and access a single register.

+
+ +

CMD53

+

IO_RW_EXTENDED

+

Used to address multiple registers with a single SDIO command. This +is called by the IssueMMCCardCommand() function.

+
+ +

R4

+

IO_SEND_OP_COND

+

The SDIO response. DSDIOStack::ExtractSendOpCondResponse(aResponse,aFunctionCount) is +used to extract the SDIO operation response.)

+
+ +

R5

+

IO_RW_DIRECT

+

The SDIO response, handled by TSDIORseponseR5. It also provides +information about the current state of the SDIO bus, error state, and the +byte order the data is read.

+
+ + +
+SDIO Implementation +Overview +
\ No newline at end of file