W83C553F Datasheet, PDF (132/159 Pages) Winbond – SYSTEM I/O CONTROLLER WITH PCI ARBITER

W83C553F
Electrical Specifications
Table 4-4. Programming CMD ON and CMD OFF Times
(for 33 MHz PCI Bus Clock)
Drive Operation
Mode
PIO Mode 0
PIO Mode 1
PIO Mode 2
PIO Mode 3
PIO Mode 4
PIO Mode 5
(proposed)
Single Word DMA
Mode 0
Multiword DMA
Mode 0
Multiword DMA
Mode 1
Multiword DMA
Mode 2
Multiword DMA
Mode 3
(proposed)
Cycle Time /
DIOR#/DIOW# 16-bit
(minimum)
600ns/165ns
383ns/125ns
240ns/100ns
180ns/80ns
120ns/70ns
90ns/50ns
CMD ON TIME Clocks
(Programmed/Actual)
5/6
4/5
3/4
2/3
2/3
1/2
CMD OFF TIME Clocks
(Programmed/Actual)
13/14
7/8
4/5
2/3
0/1
0/1
960ns/480ns
15/16
15/16
480ns/215ns
7/8
7/8
150ns/80ns
2/3
1/2
120ns/70ns
2/3
0/1
90ns/50ns
1/2
0/1
WINBOND SYSTEMS LABORATORY
129