AMD Geode SC2200 - Manual (Page 409)

AMD Geode™ SC2200 Processor Data Book 427
Electrical Specifications 32580B
Figure 9-44. Enhanced Parallel Port Timing Diagram
Table 9-33. 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 0 x x ns
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 0 x x ns
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