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AT32F413
Series Reference Manual
2022.06.27
Page 360
Rev 2.00
used as DMA request.
Bit 14
TXBUFH
0x0
ro
Transmit BUF half empty:
At least 8 words can be written to the BUF. This flag bit can
be used as DMA request.
Bit 13
DORX
0x0
ro
Data receive in progress
Bit 12
DOTX
0x0
ro
Data transmit in progress
Bit 11
DOCMD
0x0
ro
Command transfer in progress
Bit 10
DTBLKCMPL
0x0
ro
Data block sent/received CRC check passed
)
Bit 9
SBITERR
0x0
ro
Start bit not detected on all data signals in wide bus mode
Bit 8
DTCMPL
0x0
ro
Data end (data counter, SDIO CNT, is zero)
Bit 7
CMDCMPL
0x0
ro
Command sent (no response required
)
Bit 6
CMDRSPCMPL
0x0
ro
Command response (CRC check passed)
Bit 5
RXERRO
0x0
ro
Received BUF overrun error
Bit 4
TXERRU
0x0
ro
Transmit BUF underrun error
Bit 3
DTTIMEOUT
0x0
ro
Data timeout
Bit 2
CMDTIMEOUT
0x0
ro
Command response timeout
The command timeout is a fixed value of 64 SDIO_CK
clock periods.
Bit 1
DTFAIL
0x0
ro
Data block sent/received (CRC check failed)
Bit 0
CMDFAIL
0x0
ro
Command response received (CRC check failed)
23.4.12 SDIO clear interrupt register (SDIO_INTCLR)
The SDIO_INTCLR is a read-only register. Writing 1 to the corresponding register bit will clear the
correspond bit in the SDIO_STS register.
Bit
Register
Reset value
Type
Description
Bit 31: 23 Reserved
0x000
resd
Kept at its default value.
Bit 22
IOIF
0x0
rw
SD I/O interface flag clear bit
This bit is set by software to clear the IOIF flag.
Bit 21: 11 Reserved
0x000
resd
Kept at its default value.
Bit 10
DTBLKCMPL
0x0
rw
DTBLKCMPL flag clear bit
This bit is set by software to clear the DTBLKCMPL flag.
Bit 9
SBITERR
0x0
rw
SBITERR flag clear bit
This bit is set to clear the SBITERR flag.
Bit 8
DTCMPL
0x0
rw
DTCMPL flag clear bit
This bit is set by software to clear the DTCMPL flag.
Bit 7
CMDCMPL
0x0
rw
CMDCMPL flag clear bit
This bit is set by software to clear the CMDCMPL flag.
Bit 6
CMDRSPCMPL
0x0
rw
MDRSPCMPL flag clear bit
This bit is set by software to clear the CMDRSPCMPL flag.
Bit 5
RXERRO
0x0
rw
RXERRO flag clear bit
This bit is set by software to clear the RXERRO flag.
Bit 4
TXERRU
0x0
rw
TXERRU flag clear bit
This bit is set by software to clear the TXERRU flag.
Bit 3
DTTIMEOUT
0x0
rw
DTTIMEOUT flag clear bit
This bit is set by software to clear the DTTIMEOUT flag.
Bit 2
CMDTIMEOUT
0x0
rw
CMDTIMEOUT flag clear bit
This bit is set by software to clear the CMDTIMEOUT flag.
Bit 1
DTFAIL
0x0
rw
DTFAIL flag clear bit
This bit is set by software to clear the DTFAIL flag.
Bit 0
CMDFAIL
0x0
rw
CMDFAIL flag clear bit
This bit is set by software to clear the CMDFAIL flag.