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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): 131/159頁
文件大?。?/td> 3984K
代理商: W83C553F
W83C553F
Type
:
Bit Description
:
Bits [31:24]:
Bits [23:16]:
Electrical Specifications
WINBOND SYSTEMS LABORATORY
128
Read/Write
Reserved. These bits are hardwired to a 0b.
User Defined. These bits are read/write and do not affect the operation of the W83C553F.
They can be used by the driver as a temporary storage. These bits will be 0b after reset.
Reserved. These bits are hardwired to a 0b.
CMD ON TIME. The value programmed to these bits controls the IDE_IOR# and IDE_IOW#
"ON" (low) time in clock cycles for this device. The actual number of clocks is the value
programmed plus one clock. The default value is 9h or 10 clocks. This value affects both PIO
and DMA timing.
PWEN. Posted write enable must be set to execute posted writes for this device. When this bit
is a 1b, posted writes are enabled. When this bit is a 0b, the default state, posted writes are
disabled.
RDYEN. When set, the IDE_IOCHRDY signal from the IDE interface is enabled and can insert
wait states when this device is accessed. When 0, the IDE_IOCHRDY signal will have no effect
on accesses to this device. This bit will be 0b after a reset.
RAEN. Read-ahead enable must be enabled to execute read-ahead for this device. When this
bit is a 1b, read-ahead is enabled. When this bit is a 0b, the default state, read-ahead is
disabled.
CMD OFF TIME. The value programmed to these bits controls the IDE_IOR# and IDE_IOW#
"OFF" (high) time in clock cycles for this device. The actual number of clocks is the value
programmed plus one clock. The default value is 9h or 10 clocks. This value affects both PIO
and DMA timing.
Bits [15:13]:
Bits [12:8]:
Bit 7:
Bit 6:
Bit 5:
Bits [4:0]:
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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