Z80181 Datasheet, PDF (71/74 Pages) Zilog, Inc. – SMART ACCESS CONTROLLER (SAC™)

Zilog
SCC External BUS Master Timing
Valid SCC
Addr * IORQ
/RD or
/WR
DTR/REQ
Request
1
2
Z80181
SMART ACCESS CONTROLLER SAC^™
Figure 77. SCC External BUS Master Timing
Table I. External Bus Master Interface Timing (SCC Related Timing)
No Symbol
Parameter
Z8018110
Min
Max
1
TrC
Valid Access Recovery Time
2
TdRDr(REQ) /RD Rise to /DTR//REQ Not Valid Delay
Note for Table I:
[1] Only applies between transactions involving the SCC.
4TcC
4TcC
Unit
ns
ns
Notes
[1]
DS971800500
2-71