s1r72803 Epson Electronics America, Inc., s1r72803 Datasheet - Page 87

• Manufacturer Part Number: s1r72803
• Description: Link/transaction Controller
• Manufacturer: Epson Electronics America, Inc.

IDE DMA Status Register
Bit7::5 FIFOCnt[2:0]
Bit4::2 Reserved
Bit1 DmaPause
Bit0 DmaRun
Address Register Name
0x67
This register indicates the status of the DMA of the IDE interface.
This bit indicates the number of words in the FIFO.
Indicates whether the DMA mode in execution is in pause status or not. It is enabled when the DmaRun bit is
“1”.
DmaPause:1 DMA is in pause.
DmaPause:0 DMA is in execution.
Indicates whether the DMA mode in execution is in execution or not. It is enabled when the DmaRun bit is “1”.
DmaPause:1 DMA is in execution.
DmaPause:0 DMA is not in execution.
IDE_DmaStat
7: FIFOCnt[2]
6: FIFOCnt[1]
5: FIFOCnt[0]
4:
3:
2:
1: DmaPause
0: DmaRun
Bit Symbol
R/W
R
R
R
R
R
Indecate word count in FIFO
0:
0:
0:
0: IDE DMA not Pause 1: IDE DMA Pause
0: Not DMA
EPSON
Description
1:
1:
1:
1: IDE DMA Running
H.Rst S.Rst B.Rst
S1R72803F00A
0x00 0x00
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