Samsung S3C2416 User Manual page 491

S3C2416X RISC MICROPROCESSOR HSMMC CONTROLLER
Name Bit Description Initial Value
RSTDAT [0]
0
Software Reset For All
This reset affects the entire Host Controller except for the card
detection circuit. Register bits of type ROC, RW, RW1C, RWAC are
cleared to 0.
During its initialization, the Host Driver shall set this bit to 1 to reset the
Host Controller. The Host Controller shall reset this bit to 0 when
capabilities registers are valid and the Host Driver can read them.
Additional use of Software Reset For All may not affect the value of
the Capabilities registers. If this bit is set to 1, the SD card shall reset
itself and must be reinitialized by the Host Driver. (RWAC)
1 = Reset
0 = Work
20-45