SP37E760 Datasheet, PDF (74/78 Pages) SMSC Corporation – 3.3 V I/O CONTROLLER FOR EMBEDDED APPLICATIONS

nAUTOFD
PDATA<7:0>
nSTROBE
BUSY
t3
t4
t2
t1
t7
t8
t6
t5
t6
Parameter
min
t1 nAUTOFD Valid to nSTROBE Asserted
0
t2 PDATA Valid to nSTROBE Asserted
0
t3 BUSY Deasserted to nAUTOFD
80
Changed
t4 nBUSY Deasserted to PDATA Changed
80
t5 nSTROBE Asserted to BUSY Asserted
0
t6 nSTROBE Deasserted to Busy
0
Deasserted
t7 nBUSY Deasserted to nSTROBE
80
Asserted
t8 nBUSY Asserted to nSTROBE
80
Deasserted
max
60
60
180
180
200
180
units
ns
ns
ns
ns
ns
ns
ns
ns
Notes
1,2
1,2
1,2
2
NOTES:
1. Maximum value only applies if there is data in the FIFO waiting to be written out.
2. BUSY is not considered asserted or deasserted until it is stable for a minimum of 75 to
130 ns.
FIGURE 15 - ECP PARALLEL PORT FORWARD TIMING
SMSC DS – SP37E760
Page 74
Rev. 04/13/2001