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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: 20/159頁
文件大小: 3984K
代理商: W83C553F
W83C553F
Pin Descriptions
WINBOND SYSTEMS LABORATORY
17
Table 2-3. PCI Arbiter Signals
Pin Name
GNT0# /
PIBREQ#
Pin #
Input/
Output
Description
This is a multifunction pin. The W83C553F PCI-ISA bridge
(Function 0) asserts this signal to request the use of the PCI bus
when the on-chip PCI arbiter is disabled. This pin functions as
GNT0# when the on-chip PCI arbiter is enabled, allowing PCI
access to an external master.
This is a multifunction pin. An external arbiter asserts this signal to
grant the next PCI access to the PCI-ISA bridge (Function 0) when
the on-chip PCI arbiter is disabled. This pin functions as REQ0#
when the on-chip PCI arbiter is enabled.
This is a multifunction pin. The W83C553F IDE master (Function
1) asserts this signal to request the use of the PCI bus when the on-
chip PCI arbiter is disabled. This pin functions as GNT1# when the
on-chip PCI arbiter is enabled, allowing PCI access to an external
master.
This is a multifunction pin. An external arbiter asserts this signal to
grant the next PCI access to the IDE master when the on-chip PCI
arbiter is disabled. This pin functions as REQ1# when the on-chip
PCI arbiter is enabled.
When the on-chip PCI arbiter is enabled, it uses this pin to grant the
next PCI access. If a 2.2k Ohm resistor straps this pin to ground,
the PCI arbiter is disabled after power-up. This overrides the
strapping of PCI5TH# on pin 13.
When the on-chip PCI arbiter is enabled, external PCI masters use
this pin to request access to the PCI bus.
26
Output
REQ0# /
PIBGNT#
25
Input
GNT1# /
IDEREQ#
28
Output
REQ1# /
IDEGNT#
27
Input
ARBDIS# /
GNT2#
16
Input/
Output
REQ2#
17
Input
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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