SC2200 NSC [National Semiconductor], SC2200 Datasheet - Page 415

• Manufacturer Part Number: SC2200
• Description: Thin Client On a Chip
• Manufacturer: NSC [National Semiconductor]

Revision 3.0
Electrical Specifications
DSTRB#
Symbol
t
t
t
t
t
t
t
t
ASTRB#
WRITE#
WW19a
WW19ia
WST19a
WEST
WPDH
WPDS
EPDW
EPDH
PD[7:0]
WAIT#
or
Parameter
WRITE# active from WAIT# low
WRITE# inactive from WAIT# low
DSTRB# or ASTRB# active from WAIT# low
DSTRB# or ASTRB# active after WRITE#
active
PD[7:0] Hold after WRITE# inactive
PD[7:0] Valid after WRITE# active
PD[7:0] Valid width
PD[7:0] Hold after DSTRB# or ASTRB# inactive
t
WW19a
t
WST19a
t
WPDS
Table 8-32.
Figure 8-44. Enhanced Parallel Port Timing Diagram
(Continued)
t
WEST
Enhanced Parallel Port Timing Parameters
t
WW19ia
t
WPDH
415
Min
10
80
0
0
Max
45
45
65
15
t
WST19a
EPP 1.7
x
x
x
x
x
EPP 1.9
t
Valid
EPDH
x
x
x
x
x
x
x
x
t
EPDW
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Unit
ns
ns
ns
ns
ns
ns
ns
ns