– 17 –
(Fig. 14.4-4) PIO read cycle timing
Symbol Item Min Max Unit
t15 Address setup time 25 ns
t16 –DIOR pulse width 70 ns
t17 Address hold time 10 ns
t18 –DIOR interactive pulse width 25 ns
t19 IORDY delay time 35 ns
t20 IORDY pulse width 90 1,250 ns
t22 Read data hold time 5 ns
t24 Read cycle time 120 ns
H
L
H
L
H
L
H
L
–CS0, CS1
DA0 ~ DA2
–DIOR
IORDY
DD0 ~ DD15
t15
t16 t17
t18
t19
t20
t22
t24
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