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AEN
A0-15,
nSBHE
BALE
t15
nIOCS16
nIORD
nIOWR
t1
Address, nSBHE Setup to BALE Falling
t2
Address, nSBHE Hold after BALE Falling
t3
Address, nSBHE, AEN Setup to Control Active
t4
AEN Hold after Control Inactive
t15
A4-A15, AEN Low, BALE High to nIOCS16 Low
t4 not needed. nIOCS16 not relevant in 8-bit mode.
FIGURE 34 - ISA REGISTER ACCESS WHEN USING BALE
VALID
t1
t2
t3
Parameter
125
t4
min
typ
max
20
20
25
20
25
units
ns
ns
ns
ns
ns
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