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424 AMD Geode™ SC1200/SC1201 Processor Data Book
Electrical Specifications
32579B
Figure 9-45. Enhanced Parallel Port Timing Diagram
Table 9-35. Enhanced Parallel Port Timing Parameters
Symbol Parameter Min Max
EPP
1.7
EPP
1.9 Unit Comments
t
WW19a
WRITE# active from WAIT# low 45 x ns
t
WW19ia
WRITE# inactive from WAIT# low 45 x ns
t
WST19a
DSTRB# or ASTRB# active from
WAIT# low
65 x ns
t
WEST
DSTRB# or ASTRB# active after
WRITE# active
10 x x ns
t
WPDH
PD[7:0] hold after WRITE#
inactive
0xxns
t
WPDS
PD[7:0] valid after WRITE#
active
15 x x ns
t
EPDW
PD[7:0] valid width 80 x x ns
t
EPDH
PD[7:0] hold after DSTRB# or
ASTRB# inactive
0xxns
WRITE#
DSTRB#
ASTRB#
PD[7:0]
WAIT#
Valid
t
WW19ia
t
WPDH
t
EPDH
t
EPDW
or
t
WW19a
t
WST19a
t
WPDS
t
WEST
t
WST19a