LPC47N237-MD SMSC [SMSC Corporation], LPC47N237-MD Datasheet - Page 112

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

Chapter 18 SMBus GPIO Register Map
18.1
18.2
Revision 0.3 (10-26-04)
NAME/DEFAULT
Company ID
Revision Number
N/A
The SMBus runtime registers are located at the address shown from the SMBus slave address. These
registers are powered by VTR. Reserved bits and registers return 0 on read.
SMBus GPIO Register Summary
SMBus GPIO Register Description
REGISTER
ADDRESS
02 – 0D
(HEX)
0E
1A
1B
1C
1D
1E
00
01
0F
10
11
12
13
14
15
16
17
18
19
1F
OFFSET (TYPE)
0x02 – 0x0D
REGISTER
0x00
0x01
(R)
(R)
(R)
Table 18.2 – SMBus GPIO Register Description
TYPE
Table 18.1 – SMBus GPIO Register Summary
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
VTR POR
DATASHEET
This register is hardwired to 0x5C for Company ID.
This register is hardwired to 0x00 for Revision Number.
Reserved, read only. Read returns 0.
0x5C
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
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Company ID
Revision Number
Reserved – read only, read returns 0.
SMBus Isolation
GPCHG_STS
GPDIR1
GPDIR2
GPDIR3
GPDIR4
GPOT1
GPOT2
GPOT3
GPOT4
GP1
GP2
GP3
GP4
GPMSK1
GPMSK2
GPMSK3
GPMSK4
3.3v I/O Controller for Port Replicators and Docking Stations
REGISTER
DESCRIPTION
SMSC DS – LPC47N237