– 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
