w83c553f Winbond Electronics Corp America, w83c553f Datasheet - Page 126

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w83c553f

Manufacturer Part Number
w83c553f
Description
System I/o Controller With Pci Arbiter
Manufacturer
Winbond Electronics Corp America
Datasheet

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W83C553F
Electrical Specifications
Min. Grant (3Eh) and Max. Latency (3Fh) Registers
These read-only registers specify the desired latency timer value. They each represent a number of 1/4 microsecond time
units.
The Min Grant is the time required to complete a worst case burst assuming a 33MHz PCI clock. The hard coded value is
02h which represents 0.5µs.
The Max Latency specifies how often the W83C553F needs to gain control of the PCI bus. The hard coded value is 28h
which represents 10µs.
WINBOND SYSTEMS LABORATORY
123

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