SMC Networks SMC91C95 - Manual (Page 125)

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