SP37E760 Datasheet, PDF (62/78 Pages) SMSC Corporation – 3.3 V I/O CONTROLLER FOR EMBEDDED APPLICATIONS

9 AC TIMING
9.1 Host Timing
t3
AX,
AEN,
nIOCS16
t1
t6
t2
nIOR
DATA
(D0-D7)
PD0-PD7, nERR,
PE, SLCT, nACK,
BUSY
nIOR/nIOW
t4
t5
DATA VALID
t8
t9
PINTR
PINTR is the interrupt assigned to the Parallel Port
Parameter
min
typ
t1 A0-A9, AEN, nIOCS16 Set Up to
40
nIOR Low
t2 nIOR Width
150
t3 A0-A9, AEN, nIOCS16 Hold from
10
nIOR High
t4 Data Access Time from nIOR Low
t5 Data to Float Delay from nIOR High 10
t6 Parallel Port Setup
20
t8 nIOR or nIOW Inactive for Transfers to150
and from ECP FIFO
t9 nIOR Active to PINTR Inactive
FIGURE 4 - MICROPROCESSOR READ TIMING
max
100
60
260
units
ns
ns
ns
ns
ns
ns
ns
ns
SMSC DS – SP37E760
Page 62
Rev. 04/13/2001