LPC47N237-MD SMSC [SMSC Corporation], LPC47N237-MD Datasheet - Page 17

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

3.3v I/O Controller for Port Replicators and Docking Stations
SMSC DS – LPC47N237
15,49,
50,51,
52,54,
38, 12
40-43
55,16
PIN#
100
57-
59,
14,
11,
33-
92,
94-
47
10
9
3
6
5
8
2
4
GP10-GP17
GP20-GP27
GP30-GP37
GP50-GP57
(SYSOPT)
(NOTE 4.1)
nSMBINT
SMB_A0
SCLK_1
SDAT_1
SCLK_2
SDAT_2
LGP47
NAME
SDAT
SCLK
LPC General Purpose I/O.
System Option. At trailing edge of
hardware reset this pin is latched to
determine the configuration base address:
0=Index Base I/O Address 0x2E; 1=Index
Base I/O Address 0x4E.
SMBus Clock IOD
SMBus Data IOD
SMBus Interrupt Open-Drain Output
LSB of SMBus Address sampled on VTR
POR. Connect to GND or pull-up to VTR.
SMBus Controlled General Purpose I/O.
The GPIOs can be programmed as open-
drain output. These pins are either-edge
wakeup inputs and can be driven under
VTR power. The default is input on VTR
POR.
SMBus Clock 1 IOD. This is an SMBus
Clock pin that can be isolated from the
SCLK pin (in conjunction with SDAT_1)
SMBus Data 1 IOD. This is an SMBus Data
pin that can be isolated from the SDAT pin
(in conjunction with SCLK_1)
Clock pin that can be isolated from the
SCLK pin (in conjunction with SDAT_2)
SMBus Data 2 IOD. This is an SMBus Data
pin that can be isolated from the SDAT pin
(in conjunction with SCLK_2)
SMBus Clock 2 IOD. This is an SMBus
DESCRIPTION
DATASHEET
SMBus GPIO BLOCK (40)
Page 17
(NOTE 4.2)
IS2OD12
IS2OD12
IS2OD12
IS2OD12
IS2OD12
IS2OD12
BUFFER
NAME
OD8
IO8
IO8
I
WELL
(NOTE
PWR
VCC
VTR
VTR
VTR
VTR
VTR
VTR
VTR
VTR
VTR
4.3)
Revision 0.3 (10-26-04)
(Note 4.8)
NOTES