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參數資料
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: 100/159頁
文件大小: 3984K
代理商: W83C553F
W83C553F
Electrical Specifications
WINBOND SYSTEMS LABORATORY
97
Initialization Command Word 2 Register
Function
:
The Initialization Command Word 2 (ICW2) Register is used to initialize the interrupt controller with the
five most significant bits of the interrupt vector address. The value programmed into bits [7:3] is used by
the host CPU to define the base address in the interrupt vector table for the interrupt routines associated
with each IRQ on the controller.
Type
:
Write Only
Bit Description
:
Bits [7:3]:
TA[7:3]. Interrupt Vector Base Address. These bits define the base address in the interrupt
vector table for the interrupt routines associated with each interrupt request level input. For
Interrupt Controller #1, a typical value is "00001;" for Interrupt Controller #2, a typical value is
"10000."
Bits [2:0]:
Reserved. Interrupt Request Level. When writing ICW2, these bits should all be "0." During
an interrupt acknowledge cycle, these bits are coded with a simple binary value determining
which IRQ is enable.
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相關代理商/技術參數
參數描述
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