Z80181 Zilog., Z80181 Datasheet - Page 72

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

Zilog
AC CHARACTERISTICS (Continued)
2-72
/INTACK
/IORQ
/WAIT
/IORQ
SCC
SCC
CTC
CLK
/M1
/RD
Vcc
T
1
IEI
T
2
CTC
Figure 79. Peripheral Device as Part of the Daisy Chain
Figure 78. Interrupt Acknowledge Cycle Timing
Settle Time for
Off-chip Z80
Peripherals
/WAIT Signal generated
by interface circuit
IEO
Z80181
T
WA
IEI
Settle Time
for SCC
SCC
T
WA
Settle Time for
On-chip CTC
IEO
T
/IORQ
W
Logic to
External
Extend
/IORQ
Signal
T
W
IEI
T
Peripheral
Device(s)
W
S
MART
A
CCESS
IEO
T
3
C
DS971800500
ONTROLLER
Z80181
SAC
™