w83c554f Winbond Electronics Corp America, w83c554f Datasheet - Page 80
w83c554f
Manufacturer Part Number
w83c554f
Description
System I/o Controller With Pci Arbiter & Ultradma/33 Ide Controller
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W83C554F.pdf
(156 pages)
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Part Number:
W83C554F
Manufacturer:
Winbond
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W83C554F
DMA Command Register (default = 00h)
Type:
Bit Description:
WINBOND ELECTRONICS CORP. AMERICA
Bit 7:
Bit 6:
Bit 5:
Bit 4:
Bit 3:
Bit 2:
Bits [1:0]:
Write only
Reserved.
DRQ Active Level. When this bit is "0" (default), DRQ is active high. When this bit is "1," DRQ
is active low.
Reserved. Extended/Late Write Select. Must be "0".
Priority Scheme.
Reserved. Compressed timing. Must be "0".
Controller Enable. (0=Enable; 1=Disable)
Reserved. Memory-to-Memory Transfer Control. Must be "0".
0 = fixed.
1 = rotating.
Register Information
78
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