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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: 70/159頁
文件大小: 3984K
代理商: W83C553F
W83C553F
Electrical Specifications
WINBOND SYSTEMS LABORATORY
67
Chip Select Control Register (default = 33h)
Type:
Read/Write
Bit Description
:
Bit 7:
EBIOSCSE. Extended BIOS Enable.
0=
1=
Disabled
Memory access from FFF80000h to FFFDFFFFh will assert ROMCS in
PowerPC mode or the encoded output XCS[1:0 = 11 in x86 mode.
LBIOSCSE. Lower BIOS Enable.
0=
Disabled
1=
Memory access from FFFE,0000h to FFFE,FFFFh or FFEE,0000 to FFEE,FFFF
or 000E,0000 to 000E,FFFF will assert ROMCS in PowerPC mode or the
encoded output XCS[1:0] = 11 in x86 mode.
BIOSWP. BIOS Write Protect.
0=
Disabled
1=
When set, ROMCS in PowerPC mode or the encoded output XCS[1:0] = 11 in
x86 mode will not be generated for write access to the BIOS space.
UBIOSCSE. Upper BIOS Chip Select Enable. This bit defaults to "1" after reset.
0=
Disabled
1=
For Revision ID 0, Memory access from FFFF,0000h to FFFF,FFFFh or
FFEF,0000 to FFEF,FFFF or 000F,0000 to 000F,FFFF will assert ROMCS in
PowerPC mode or the encoded output XCS[1:0] = 11 in x86 mode.
For Revision ID 4, Memory access will be from 000F,0000 to 000F,FFFF or
FF80,0000 to FFFF,FFFF..
Reserved.
KBCSE. Keyboard Controller Address Location Enable. .
0=
Disabled
1=
Access to the I/O ports 60h, 62h, 64h, or 66h will give the encoded output
XCS[1:0] = 11 for keyboard chip select in x86 mode. This bit is reserved in the
PowerPC mode.
RTCCSE. RTC Address Location Enable.
0=
Disabled
1=
Access to the I/O ports 70-77h will give the encoded output XCS[1:0] = 01 for for
RTC Data Port in x86 mode. This bit is reserved in the PowerPC mode.
Bit 6:
Bit 5:
Bit 4:
Bits [3:2]:
Bit 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