w83c554f Winbond Electronics Corp America, w83c554f Datasheet - Page 123
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w83c554f
Manufacturer Part Number
w83c554f
Description
System I/o Controller With Pci Arbiter & Ultradma/33 Ide Controller
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W83C554F.pdf
(156 pages)
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W83C554F
Register Information
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 W83C554F needs to gain control of the PCI bus. The hard coded value is 28h
which represents 10µs.
WINBOND ELECTRONICS CORP. AMERICA
121
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