LPC47N237-MD SMSC [SMSC Corporation], LPC47N237-MD Datasheet - Page 127
LPC47N237-MD
Manufacturer Part Number
LPC47N237-MD
Description
3.3V I/O CONTROLLER FOR PORT REPLICATORS AND DOCKING STATIONS
Manufacturer
SMSC [SMSC Corporation]
Datasheet
1.LPC47N237-MD.pdf
(138 pages)
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3.3v I/O Controller for Port Replicators and Docking Stations
Note 20.3
Note 20.4
SMSC DS – LPC47N237
NAME
nADDRSTB
nDATASTB
PD<7:0>
t10
t11
t12
nWRITE
t1
t2
t3
t4
t5
t6
t7
t8
t9
nWAIT is considered to have settled after it does not transition for a minimum of 50 ns.
When not executing a write cycle, EPP nWRITE is inactive high.
nWAIT
nWAIT Asserted to nWRITE Deasserted
nWAIT Asserted to nWRITE Modified
20.4)
nWAIT Asserted to PDATA Hi-Z
Command Asserted to PDATA Valid
Command Deasserted to PDATA Hi-Z
nWAIT Asserted to PDATA Driven
PDATA Hi-Z to Command Asserted
nWRITE Deasserted to Command
nWAIT Asserted to Command Asserted
nWAIT Deasserted to Command Deasserted
(Note 20.3)
PDATA Valid to nWAIT Deasserted
PDATA Hi-Z to nWAIT Asserted
Figure 20.13 – EPP 1.9 Data or Address Read Cycle
DESCRIPTION
t3
t1
DATASHEET
t9
t8
t7
(Note 20.3)
(Note 20.3)
Page 127
(Note 20.3, Note
t4
t11
MIN
60
60
60
60
0
0
0
0
1
0
0
0
t10
TYP
t5
t12
MAX
185
195
190
180
190
180
30
Revision 0.3 (10-26-04)
t6
t2
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
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