AT85C51SND3Bx
Bit
Bit
Number
Mnemonic Description
Channel 0 Destination Ready Flag
Set by hardware when the source peripheral of channel 0 is ready.
Cleared by hardware when the source peripheral of channel 0 is not ready.
3
2
1
0
DRDY0
SRDY0
EOFI0
Channel 0 Source Ready Flag
Set by hardware when the destination peripheral of channel 0 is ready.
Cleared by hardware when the destination peripheral of channel 0 is not ready.
Channel 0 End Of Data Flow Interrupt Flag
Set by hardware at the end of a channel 0 data flow transfer.
Cleared by software by setting EOFIA0 in DFCCON. Can not be set by software.
Channel 0 Busy Flag
DFBSY0
Set by hardware when a transfer is on-going on channel 0.
Cleared by hardware when no transfer is on-going on channel 0.
Reset Value = 0000 0000b
Table 96. DFCCON Register
DFCCON (1.85h) – DFC Channel Control Register
7
6
5
4
3
2
1
0
DFABT1
EOFE1
EOFIA1
-
DFABT0
EOFE0
EOFIA0
-
Bit
Bit
Number
Mnemonic Description
Channel 1 Abort Control Bit
7
6
DFABT1
EOFE1
Set to trigger an abort on channel 1.
This bit is cleared by hardware.
Channel 1 End Of Data Flow Interrupt Enable Bit
Set to enable channel 1 EOF interrupt.
Clear to disable channel 1 EOF interrupt.
Channel 1 End Of Flow Interrupt Acknowledge Bit
Set to acknowledge the channel 1 EOF interrupt (clear EOFI1 flag).
Clearing this bit has no effect.
5
EOFIA1
The value read from this bit is always 0.
Reserved
4
3
-
The value read from this bit is always 0. Do not set this bit.
Channel 0 Abort Control Bit
DFABT0
Set to trigger an abort on channel 0.
This bit is cleared by hardware.
Channel 0 End Of Data Flow Interrupt Enable Bit
2
EOFE0
Set to enable channel 0 EOF interrupt.
Clear to disable channel 0 EOF interrupt.
Channel 0 End Of Flow Interrupt Acknowledge Bit
Set to acknowledge the channel 0 EOF interrupt (clear EOFI0 flag).
Clearing this bit has no effect.
The value read from this bit is always 0.
1
0
EOFIA0
-
Reserved
The value read from this bit is always 0. Do not set this bit.
Reset Value = 0000 0000b
83
7632A–MP3–03/06
ATMEL [ ATMEL ]
