µPD31172
(i) Interrupt request timing
Parameter
Symbol
t59
Conditions
MIN.
4 T
MAX.
3 T
Unit
ns
Interrupt request setup time
Interrupt request generation time (from ACK#↑,
ERROR# ↓)
t60
ns
Interrupt request cancellation time (from IOW# ↑)
Interrupt request cancellation timeNote (from IOR# ↑)
Interrupt request generation time (from IOW# ↑)
t61
t62
t63
5 T
3 T
5 T
ns
ns
ns
Note When bit 7 of the CNFGA register = 0
Remark T: Parallel interface internal clock cycle (41.6 ns (MIN.))
IOW#
(input)
IOR#
(input)
ACK#
(input)
t60
t
61
t
60
t
62
t
63
INTRP, IRQ
(output)
t
59
ERROR#
(input)
t
60
t
60
36
Data Sheet U14388EJ2V0DS00
NEC [ NEC ]
