LPC47M172 SMSC Corporation, LPC47M172 Datasheet - Page 172

• Manufacturer Part Number: LPC47M172
• Description: ADVANCED I/O CONTROLLER WITH MOTHERBOARD GLUE LOGIC
• Manufacturer: SMSC Corporation

Advanced I/O Controller with Motherboard GLUE Logic
Datasheet
SMSC/Non-SMSC Register Sets (Rev. 02-27-04)
GP23
Default = 0x04
on VTR POR
Note 3
GP24
Default = 0x05
N/A
GP1
Default = 0x00
GP2
Default = 0x00
N/A
on VTR POR
on VTR POR
on VTR POR
NAME
REG OFFSET
0x2D-0x34
0x37-0x3F
(Type)
(R/W)
(R/W)
(R/W)
(R/W)
0x2C
0x2B
0x35
0x36
(R)
(R)
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
General Purpose I/O bit 2.4
Bit[0] In/Out : =1 Input, =0 Output
Bit[1] Polarity : =1 Invert, =0 No Invert
Bit[2] Alternate Function Select
1=nCDC_DWN_ENAB
0=GPIO
Bits[6:3] Reserved
Bit[7] Output Type Select
1=Open Drain
0=Push Pull
Bits[7:0] Reserved – reads return 0
General Purpose I/O Data Register 1
Bit[0] GP10
Bit[1] GP11
Bit[2] GP12
Bit[3] GP13
Bit[4] GP14
Bit[5] GP15
Bit[6] GP16
Bit[7] GP17
General Purpose I/O Data Register 2
Bit[0] GP20
Bit[1] GP21
Bit[2] GP22
Bit[3] GP23
Bit[4] GP24
Bits[7:5] Reserved
Bits[7:0] Reserved – reads return 0
DATASHEET
Page 172
DESCRIPTION
SMSC LPC47M172