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參數(shù)資料
型號: W83C553F
廠商: WINBOND ELECTRONICS CORP
元件分類: 總線控制器
英文描述: SYSTEM I/O CONTROLLER WITH PCI ARBITER
中文描述: ISA BUS CONTROLLER, PQFP208
封裝: 28 X 28 MM, PLASTIC, QFP-208
文件頁數(shù): 61/159頁
文件大小: 3984K
代理商: W83C553F
W83C553F
4.1.2
Electrical Specifications
WINBOND SYSTEMS LABORATORY
58
Function 0 Control Registers
PCI Control Register (default = 20h)
Type:
Read/Write
Bit Description
:
Bit 7:
Reserved. This read only bit is set to "0".
Bit 6:
Reserved.
Bit 5:
IAE. Interrupt Acknowledge Enable. Setting this bit allows the W83C553F chip to respond to
the interrupt acknowledge command. This bit is active after reset.
Bit 4:
Reserved. This read only bit is set to "0".
Bit 3:
ESDP. Early Subtractive Decoding Point. Setting this bit will move the subtractive decoding
point one PCI clock earlier from "slow" to "medium" timing.
Bit 2:
PWE. Post Write Enable. Setting this bit will allow PCI memory write cycles to the ISA bus to
be posted.
Bit 1:
RETRYE. Retry Enable. When this bit is set to "1", PCI slave cycles are retried when the
internal bus is busy. When this bit is reset to "0" and the internal bus is busy, a PCI slave cycle
will be held in wait states until the bus becomes idle and the access completes. The default
state of this bit after a hardware reset is "0".
Bit 0:
PCI NMI Enable. When set, PCI error status bits in the Status Register (except SSE) will
generate an NMI. Defaults to "0".
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
W83C553FG 制造商:Winbond Electronics Corp 功能描述:
W83C553F-G 制造商:未知廠家 制造商全稱:未知廠家 功能描述:W83C553F-G Highly Integrated System I/O Controller for Power PCTM (South Bridge) QFP 208
W83C553FY-G 制造商:Nuvoton Technology Corp 功能描述:I/O Controller Phase Controller 208-Pin PQFP 制造商:Winbond Electronics 功能描述:I/O CONTROLLER 制造商:Nuvoton Technology 功能描述:I/O Controller Phase Controller 208-Pin PQFP
W83C554F 制造商:WINBOND 制造商全稱:Winbond 功能描述:SYSTEM I/O CONTROLLER WITH PCI ARBITER & UltraDMA/33 IDE Controller
W83C554FY 制造商:Nuvoton Technology Corp 功能描述:I/O Controller Phase Controller 制造商:Nuvoton Technology 功能描述:I/O Controller Phase Controller