RM0008 SDIO interface (SDIO)
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19.9.12 SDIO Interrupt Clear Register (SDIO_ICR)
Address offset: 0x38
Reset value: 0x0000 0000
The SDIO_ICR register is a write-only register. Writing a bit with 1b clears the
corresponding bit in the SDIO_STA Status register.
Bit 4 TXUNDERR: Transmit FIFO underrun error
Bit 3 DTIMEOUT: Data timeout
Bit 2 CTIMEOUT: Command response timeout.
The Command TimeOut period has a fixed value of 64 SDIO_CK clock periods.
Bit 1 DCRCFAIL: Data block sent/received (CRC check failed)
Bit 0 CCRCFAIL: Command response received (CRC check failed)
313029282726252423222120191817161514131211109876543210
Reserved
CEATAENDC
SDIOITC
Reserved
DBCKENDC
STBITERRC
DATAENDC
CMDSENTC
CMDRENDC
RXOVERRC
TXUNDERRC
DTIMEOUTC
CTIMEOUTC
DCRCFAILC
CCRCFAILC
Res. r/w r/w Res r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w
Bits 31:24 Reserved, always read as 0.
Bit 23 CEATAENDC: CEATAEND flag clear bit
Set by software to clear the CEATAEND flag.
0: CEATAEND not cleared
1: CEATAEND cleared
Bit 22 SDIOITC: SDIOIT flag clear bit
Set by software to clear the SDIOIT flag.
0: SDIOIT not cleared
1: SDIOIT cleared
Bits 21:11 Reserved, always read as 0.
Bit 10 DBCKENDC: DBCKEND flag clear bit
Set by software to clear the DBCKEND flag.
0: DBCKEND not cleared
1: DBCKEND cleared
Bit 9 STBITERRC: STBITERR flag clear bit
Set by software to clear the STBITERR flag.
0: STBITERR not cleared
1: STBITERR cleared
Bit 8 DATAENDC: DATAEND flag clear bit
Set by software to clear the DATAEND flag.
0: DATAEND not cleared
1: DATAEND cleared
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