PD0- PD7
nIOW
t6
t1
nINIT, nSTROBE.
nAUTOFD, SLCTIN
nACK
t2
nPINTR
(SPP)
t4
t3
PINTR
(ECP or EPP Enabled)
nFAULT (ECP)
nERROR
(ECP)
t5
t2
t3
PINTR
FIGURE 11 - PARALLEL PORT TIMING
NAME
DESCRIPTION
MIN
TYP
MAX
UNITS
t1
PD0-7, nINIT, nSTROBE, nAUTOFD Delay from
nIOW
100
ns
t2
t3
t4
t5
t6
PINTR Delay from nACK, nFAULT
PINTR Active Low in ECP and EPP Modes
PINTR Delay from nACK
60
ns
ns
ns
ns
ns
200
300
105
105
100
nERROR Active to PINTR Active
PD0 - PD7 Delay from IOW Active
Note:
PINTR refers to the IRQ used by the parallel port.
162