w83c554f Winbond Electronics Corp America, w83c554f Datasheet - Page 56

• Manufacturer Part Number: w83c554f
• Description: System I/o Controller With Pci Arbiter & Ultradma/33 Ide Controller
• Manufacturer: Winbond Electronics Corp America

W83C554F
Command Register (default = 0007h)
Type:
Bit Description:
WINBOND ELECTRONICS CORP. AMERICA
Bits [15:10]:
Bit 9:
Bit 8:
Bit 7:
Bit 6:
Bit 5:
Bit 4:
Bit 3:
Bit 2:
Bit 1:
Bit 0:
Read/Write
Reserved. These read only bits are all set to "0".
Fast Back-to-Back Enable. W83C554F does not generate fast back-to-back cycles. This read
only bit is set to "0".
SERR# Enable. W83C554F does not drive the SERR# pin. Defaults to "0".
Wait Cycle Control. W83C554F does not use address/data stepping. This read only bit is set
to "0".
Parity Error Response. This is a read/write bit.
VGA Palette Snoop. W83C554F is not a VGA device. This read only bit is set to "0".
Memory Write and Invalidate Enable. W83C554F does not generate memory write and
invalidate commands. This read only bit is set to "0".
Special Cycles. W83C554F ignores all special cycles when reset. Defaults to "0".
Bus Master. Always enabled. This read only bit is set to "1".
Memory Space. Always enabled. This read only bit is set to "1".
I/O Space. Always enabled. This read only bit is set to "1".
Register Information
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