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| Z80 Datasheet, PDF (218/330 Pages) Zilog, Inc. – Z80 CPU PERIPHERALS | |||
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< %27 2GTKRJGTCNU
7UGT /CPWCN
Last T
T1
T2
TW*
TW*
T3
State
Φ
Sample
INT
INT
IORQ
M1
IEO
IEI
Figure 11. Interrupt Acknowledge Timing
IORQ and M1
indicate Interrupt
Acknowledge (INTA)
CLK
T1
T2
T3
T4 T1
T2
T3
T4
T1
M1
RD
D7âD0
ED
4D
IEI
IEO
Figure 12. Return from Interrupt Cycle
UM008101-0601
Parallel Input/Output
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