Autocmd12 Error Status Register - Samsung S3C2416 User Manual

S3C2416X RISC MICROPROCESSOR

5.24 AUTOCMD12 ERROR STATUS REGISTER

When Auto CMD12 Error Status is set, the Host Driver shall check this register to identify what kind of error Auto
CMD12 indicated. This register is valid only when the Auto CMD12 Error is set.
Register
ACMD12ERRSTS0
ACMD12ERRSTS1
Name
STANCMDAER
STACMDIDXERR
STACMDEBITAER
STACMDCRCAER
STACMDTOUTAER
STANACMDAER
Address R/W
0X4AC0003C ROC
0X4A80003C ROC
Bit
[15:8] Reserved
[7]
Command Not Issued By Auto CMD12 Error
Setting this bit to 1 means CMD_wo_DAT is not executed due to
an Auto CMD12 Error (D04-D01) in this register.
1 = Not Issued
0 = No error
[6:5]
Reserved
[4]
Auto CMD12 Index Error
Occurs if the Command Index error occurs in response to a
command.
1 = Error
0 = No Error
[3]
Auto CMD12 End Bit Error
Occurs when detecting that the end bit of command response is
0.
1 = End Bit Error Generated
0 = No Error
[2]
Auto CMD12 CRC Error
Occurs when detecting a CRC error in the command response.
1 = CRC Error Generated
0 = No Error
[1]
Auto CMD12 Timeout Error
Occurs if no response is returned within 64 SDCLK cycles from
the end bit of command. If this bit is set to1, the other error
status bits (D04-D02) are meaningless.
1 = Time out
0 = No Error
[0]
Auto CMD12 Not Executed
If memory multiple block data transfer is not started due to
command error, this bit is not set because it is not necessary to
issue Auto CMD12. Setting this bit to 1 means the Host
Controller cannot issue Auto CMD12 to stop memory multiple
block data transfer due to some error. If this bit is set to 1, other
error status bits (D04-D01) are meaningless.
1 = Not executed
0 = Executed
Description
Auto CMD12 Error Status Register (Channel 0)
Auto CMD12 Error Status Register (Channel 1)
Description
HSMMC CONTROLLER
Reset Value
0x0
0x0
Initial Value
0
0
0
0
0
0
0
0
20-59