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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: 106/159頁
文件大小: 3984K
代理商: W83C553F
W83C553F
Electrical Specifications
WINBOND SYSTEMS LABORATORY
103
Counter Status Register
Function
:
Each counter's status byte can be read following a timer Read Back command, as programmed in the
Timer Control Register (43h).
Type
:
Bit Description
:
Bit 7:
Read back
OUT. Count Out Status. This bit indicates the Counter Out pin state. When set to "1", the
OUT pin of the counter is also a "1". When set to "0", the OUT pin of the counter is also a "0".
NULLCOUNT.
R/W. Read/Write Selection Status. These bits reflect the read/write selection made through
bits [5:4] of the control register. The binary codes returned, during the status read, match the
codes used to program the counter read/write selection.
Bit 5
Bit 4
Function
0
0
Counter Latch command
0
1
R/W Least Significant Byte (LSB)
1
0
R/W Most Significant Byte (MSB)
1
1
R/W LSB then MSB
M. The Mode Selection Status bits return the counter mode programming. The binary code
returned matches the code used to program the counter mode, as listed under the bit function
above.
Bit 3
Bit 2
Bit 1
Mode
0
0
0
0
0
0
1
1
x
1
0
2
x
1
1
3
1
0
0
4
1
0
1
5
BCD. The countdown method is binary when this bit is "0", and Binary Coded Decimal (BCD)
when this bit is "1".
Bit 6:
Bits [5:4]:
Bits [3:1]:
Bit 0:
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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