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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: 28/159頁
文件大小: 3984K
代理商: W83C553F
W83C553F
Pin Descriptions
WINBOND SYSTEMS LABORATORY
25
Table 2-6. X Bus Signals
Pin Name
SECURITY /
XRD#
Pin #
Input/
Output
Description
X Bus Read. When active "0", data flows from XD to SD. When
the W83C553F is in PowerPC mode, this pin is sampled after reset
and its value is reflected in bit 2 of the Port 92 register (see page
107).
Keyboard Controller Interrupt.
Real Time Clock Interrupt.
X Bus Buffer Enable. This signal enables an external X-bus buffer
whenever an X-bus device is decoded. This pin is a strap pin, needs
a 2.2k Ohm resistor pull up, otherwise will be in test mode.
This is a multi-function pin. When the W83C553F is in PowerPC
mode, this pin functions as the chip select for an external ROM,
using default ISA memory cycle timing. When the W83C553F is in
x86 mode, this pin functions as the lower bit of the X-bus Address.
This is a multi-function pin. When the W83C553F is in PowerPC
mode, this pin functions as the chip select for ports in the 800h-
8FFh I/O address range. When the W83C553F is in x86 mode, this
pin functions as the upper bit of the X-bus Address. In x86 mode,
an external decoder is required to decode the chip selects for X-bus
devices:
XCS[1:0]
Device
00
Idle
01
RTC Address Latch
10
RTC Data Port
11
ROM/BIOS or Keyboard Controller
116
Output/
Input
IRQ1
121
Input
IRQ8#
120
Input
XOE#
117
Output/
Input
XCS0/
ROMCS
119
Output
XCS1/X8XCS
118
Output
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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