LPC47N237-MD SMSC [SMSC Corporation], LPC47N237-MD Datasheet - Page 126

• Manufacturer Part Number: LPC47N237-MD
• Description: 3.3V I/O CONTROLLER FOR PORT REPLICATORS AND DOCKING STATIONS
• Manufacturer: SMSC [SMSC Corporation]

Note 20.2
Revision 0.3 (10-26-04)
NAME
nADDRSTB
nDATASTB
t1
t2
t3
t4
t5
t6
t7
t8
t9
PD<7:0>
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.
nWRITE
nWAIT
nWAIT Asserted to nWRITE Asserted
nWAIT Asserted to nWRITE Change
nWAIT Asserted to PDATA Invalid
PDATA Valid to Command Asserted
nWRITE to Command Asserted
nWAIT Asserted to Command Asserted
nWAIT Deasserted to Command Deasserted
(Note 20.2)
Command Asserted to nWAIT Deasserted
Command Deasserted to nWAIT Asserted
Figure 20.12 – EPP 1.9 Data or Address Write Cycle
DESCRIPTION
t1
t6
DATASHEET
t5
t4
(Note 20.2)
Page 126
(Note 20.2)
(Note 20.2)
(Note 20.2)
t8
3.3v I/O Controller for Port Replicators and Docking Stations
MIN
60
60
10
60
60
0
5
0
0
t7
TYP
t9
MAX
185
185
210
190
35
10
SMSC DS – LPC47N237
UNITS
t2
t3
ns
ns
ns
ns
ns
ns
ns
µs
ns