Z80181 Zilog., Z80181 Datasheet - Page 71

• Manufacturer Part Number: Z80181
• Description: SMART ACCESS CONTROLLER (SAC)
• Manufacturer: Zilog.

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