w83c554f Winbond Electronics Corp America, w83c554f Datasheet - Page 61

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

W83C554F
Line Buffer Control Register (default = 00h)
Type:
Bit Description:
IDE Interrupt Routing Control Register (default = EFh)
Type:
Bit Description:
WINBOND ELECTRONICS CORP. AMERICA
Bits [7:4]:
Bits [3:2]:
Bits [1:0]:
Bits [7:4]:
Bits [3:0]:
Read/Write
Reserved.
ISA Master Line Buffer Configuration.
DLBC. DMA Line Buffer Configuration.
Read/Write
IRQARCH [3:0]. Routes IDE Primary Port IRQ to the interrupt controller. Defaults to Eh
(IRQ14).
IRQBRCH [3:0]. Routes IDE Secondary Port IRQ to the interrupt controller. Defaults to Fh
(IRQ15).
Bit 3
Bit 1
0
0
1
1
0
0
1
1
2
0
1
0
1
0
0
1
0
1
Function
Single transaction
Reserved
Reserved
Reserved
Function
Single transaction
Reserved
Reserved
Reserved
Register Information
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