Z80181 Zilog., Z80181 Datasheet - Page 68

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

Zilog
AC CHARACTERISTICS (Continued)
Interrupt Daisy-Chain Timing
Figure 74 shows the interrupt daisy-chain timing. Parame-
ters referenced in this figure appear in Table G.
2-68
/IORQ
(SCC)
/WAIT
Data
CLK
/INT
/M1
IEO
No
1
2
3
4
5
6
7
8
9
10
11
IEI
Symbol
TsM1(Cr)
TsM1(IO)INTA
Th
TdM1r(DOz)
TdCr(DO)
TsIEI(TW4)
TdIEIf(IEOf)
TdIEIr(IEOr)
TdM1f(IEOf)
TdCWA(f)INTA
TdCWA(r)INTA
1
9
Table G. Interrupt Daisy-Chain Timing Parameters
10
Figure 74. Interrupt Daisy-Chain Timing
2
/M1 Fall to /IORQ Fall Setup Time
/M1 Rise to Data Out Float Delay
IEI to T
/M1 Fall to IEO Fall Delay
Parameter
/M1 Fall to Clock Rise Setup Time
(During INTACK Cycle)
Hold Time
Clock Rise to Data Out Delay
IEI Fall to IEO Fall Delay
IEO Rise to IEO Rise Delay
Clock Rise to /WAIT Fall Delay
Clock Rise to /WAIT Rise Delay
W4
Rise Setup Time
6
7, 8
5
11
2TcC
Min
20
95
0
0
Z8018110
S
MART
Max
A
3
4
CCESS
C
DS971800500
ONTROLLER
Unit
ns
ns
ns
ns
Z80181
SAC
™