Interrupt Acknowledge Cycle Timing - Motorola MC68020 User Manual

CLK
*
A31–A4
A3–A1
A0
FC2–FC0
SIZ1
SIZ0
R/W
**
ECS
**
OCS
AS
DS
DSACK1
DSACK0
**
DBEN
D24–D31
D23–D16
D7–D0
IPL2–IPL0
**
IPEND
* For the MC68EC020, A23–A4.
** This signal does not apply to the MC68EC020.
Figure 5-33. Interrupt Acknowledge Cycle Timing
MOTOROLA
S0 S2 S4
READ CYCLE
M68020 USER'S MANUAL
S0 S2 S4
INTERRUPT LEVEL
VECTOR # FROM 8-BIT PORT
VECTOR # FROM 16-BIT PORT
VECTOR # FROM 32-BIT PORT
INTERRUPT
ACKNOWLEDGE
S0 S2
WRITE STACK
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