t3
t4
nAUTOFD
PDATA<7:0>
t2
t1
t7
t8
nSTROBE
BUSY
t6
t5
t6
Parameter
min
max
units
Notes
t1
t2
t3
nAUTOFD Valid to nSTROBE Asserted
PDATA Valid to nSTROBE Asserted
BUSY Deasserted to nAUTOFD
Changed
0
0
60
60
ns
ns
ns
80
180
1,2
1,2
t4
t5
t6
nBUSY Deasserted to PDATA Changed
nSTROBE Asserted to BUSY Asserted
nSTROBE Deasserted to Busy
Deasserted
80
0
0
180
ns
ns
ns
t7
t8
nBUSY Deasserted to nSTROBE
80
80
200
180
ns
ns
1,2
2
Asserted
nBUSY Asserted to nSTROBE
Deasserted
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
SMSC [ SMSC CORPORATION ]
