W83C553F Datasheet, PDF (60/159 Pages) Winbond – SYSTEM I/O CONTROLLER WITH PCI ARBITER

W83C553F
Electrical Specifications
Revision ID Register (default = 00h)
Bit Description:
Bits [7:0]:
REVID. Revision ID for ISA Bridge is 00h.
Class Code Register (default = 060100h)
Bit Description:
Bits [23:16]:
Bits [15:8]:
Bits [7:0]:
BCLASS. Base Class is 06h. Bridge device.
SCLASS. Sub-Class is 01h. ISA bus.
PROGIF. Programming Interface is 00h.
Header Type Register (default = 80h)
Bit Description:
Bit 7:
Bits [6:0]:
MFCN. Multi-Function Device is "1". W83C553F contains two functions (ISA bridge and IDE
master).
CFGLAY. Configuration Layout is 00h. Non-PCI-to-PCI bridge device.
WINBOND SYSTEMS LABORATORY
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