LPC47M172 SMSC Corporation, LPC47M172 Datasheet - Page 160
LPC47M172
Manufacturer Part Number
LPC47M172
Description
ADVANCED I/O CONTROLLER WITH MOTHERBOARD GLUE LOGIC
Manufacturer
SMSC Corporation
Datasheet
1.LPC47M172.pdf
(227 pages)
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Advanced I/O Controller with Motherboard GLUE Logic
Datasheet
SMSC/Non-SMSC Register Sets (Rev. 02-27-04)
GP17
Default = 0x01
on VTR POR
GP20
Default = 0x04
on VTR POR
Note 1
GP21
Default = 0x04
on VTR POR
Note 1
GP22
Default = 0x04
on VTR POR
Note 1
GP23
Default = 0x04
on VTR POR
Note 1
NAME
REG OFFSET
(Type)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
0x0A
0x0B
0x07
0x08
0x09
DATASHEET
General Purpose I/0 bit 1.7
Bit[0] In/Out : =1 Input, =0 Output
Bit[1] Polarity :=1 Invert, =0 No Invert
Bit[2] Alternate Function Select
1=FAN_TACH2
0=GPIO
Bits[6:3] Reserved
Bit[7] Output Type Select
1=Open Drain
0=Push Pull
General Purpose I/0 bit 2.0
Bit[0] In/Out : =1 Input, =0 Output
Bit[1] Polarity : =1 Invert, =0 No Invert
Bit[2] Alternate Function Select
1= DDCSDA_5V
0=GPIO
Bits[6:3] Reserved
Bit[7] Output Type Select
1=Open Drain
0=Push Pull
General Purpose I/O bit 2.1
Bit[0] In/Out : =1 Input, =0 Output
Bit[1] Polarity : =1 Invert, =0 No Invert
Bits[3:2] Alternate Function Select
11=Reserved
10=Either Edge Triggered Input 0 (Note 2)
01= DDCSCL_5V
00=GPIO
Bits[6:4] Reserved
Bit[7] Output Type Select
1=Open Drain
0=Push Pull
General Purpose I/O bit 2.2
Bit[0] In/Out : =1 Input, =0 Output
Bit[1] Polarity : =1 Invert, =0 No Invert
Bits[3:2] Alternate Function Select
11=Reserved
10=Either Edge Triggered Input 0 (Note 2)
01= DDCSDA_3V
00=GPIO
Bits[6:4] Reserved
Bit[7] Output Type Select
1=Open Drain
0=Push Pull
General Purpose I/O bit 2.3
Bit[0] In/Out : =1 Input, =0 Output
Bit[1] Polarity : =1 Invert, =0 No Invert
Bit[2] Alternate Function Select
1=DDCSCL_3V
0=GPIO
Bits[6:3] Reserved
Bit[7] Output Type Select
1=Open Drain
0=Push Pull
Page 160
DESCRIPTION
SMSC LPC47M172
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