Z80181 Datasheet, PDF (68/74 Pages) Zilog, Inc. – SMART ACCESS CONTROLLER (SAC™)

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.
Z80181
SMART ACCESS CONTROLLER SAC^™
CLK
1
3
/M1
/IORQ
Data
IEI
IEO
/INT
(SCC)
/WAIT
2
5
4
6
7, 8
9
11
10
Figure 74. Interrupt Daisy-Chain Timing
No Symbol
1
TsM1(Cr)
Table G. Interrupt Daisy-Chain Timing Parameters
Parameter
Z8018110
Min
Max
/M1 Fall to Clock Rise Setup Time
20
2
TsM1(IO)INTA
3
Th
4
TdM1r(DOz)
5
TdCr(DO)
6
TsIEI(TW4)
7
TdIEIf(IEOf)
8
TdIEIr(IEOr)
9
TdM1f(IEOf)
10 TdCWA(f)INTA
11 TdCWA(r)INTA
/M1 Fall to /IORQ Fall Setup Time
(During INTACK Cycle)
Hold Time
/M1 Rise to Data Out Float Delay
Clock Rise to Data Out Delay
IEI to T Rise Setup Time
W4
IEI Fall to IEO Fall Delay
IEO Rise to IEO Rise Delay
/M1 Fall to IEO Fall Delay
Clock Rise to /WAIT Fall Delay
Clock Rise to /WAIT Rise Delay
2TcC
0
0
95
Unit
ns
ns
ns
ns
2-68
DS971800500