LPC47S457-NC SMSC [SMSC Corporation], LPC47S457-NC Datasheet - Page 235

• Manufacturer Part Number: LPC47S457-NC
• Description: Advanced I/O with X-Bus Interface
• Manufacturer: SMSC [SMSC Corporation]

11.6 Parallel Port Timing
Note 1: nWAIT must be filtered to compensate for ringing on the parallel bus cable. WAIT is considered to have
settled after it does not transition for a minimum of 50 nsec.
SMSC LPC47S45x
NAME
nADDRSTB
t1
t2
t3
t4
t5
t6
t7
t8
t9
nDATAST
PD<7:0>
nWRITE
nWAIT
nWAIT Asserted to nWRITE Asserted (Note 1)
nWAIT Asserted to nWRITE Change (Note 1)
nWAIT Asserted to PDATA Invalid (Note 1)
PDATA Valid to Command Asserted
nWRITE to Command Asserted
nWAIT Asserted to Command Asserted (Note 1)
nWAIT Deasserted to Command Deasserted
(Note 1)
Command Asserted to nWAIT Deasserted
Command Deasserted to nWAIT Asserted
FIGURE 26 − EPP 1.9 DATA OR ADDRESS WRITE CYCLE
DESCRIPTION
t1
DATASHEET
t6
t5
t4
Page 235 of 259
t8
MIN
60
60
10
60
60
0
5
0
0
t7
TYP
t9
MAX
185
185
210
190
35
10
UNITS
t2
t3
ns
ns
ns
ns
ns
ns
ns
μ s
ns
Rev. 06-01-06