SP37E760 Datasheet, PDF (66/78 Pages) SMSC Corporation – 3.3 V I/O CONTROLLER FOR EMBEDDED APPLICATIONS

9.3 Parallel Port Timing
PD0- PD7
t6
nIOW
t1
nINIT, nSTROBE.
nAUTOFD, SLCTIN
PINTR (SPP)
nACK
t2
PINTR
(ECP or EPP
Enabled)
nFAULT (ECP)
nERROR
(ECP)
PINTR
t4
t3
t5
t2
t3
Parameter
min
typ
t1 nINIT, nSTROBE, nAUTOFD Delay from
nIOW Inactive
t2 PINTR Delay from nACK, nFAULT
t3 PINTR Active Low in ECP and EPP
200
Modes
t4 ^{PINTR Delay from nACK}
t5 ^{nERROR Active to PINTR Active}
t6 ^{PD0-PD7 Delay from nIOW Active}
PINTR is the interrupt assigned to the Parallel Port
FIGURE 8 - PARALLEL PORT TIMING
max
100
60
300
105
105
100
units
ns
ns
ns
ns
ns
ns
SMSC DS – SP37E760
Page 66
Rev. 04/13/2001