REG OFFSET
(hex)
NAME
DESCRIPTION
General Purpose I/0 bit 5.5
GP55
44
Bit[0] In/Out : =1 Input, =0 Output
Bit[1] Polarity : =1 Invert, =0 No Invert
Bit[3:2] Alternate Function Select
11=Reserved
Default = 0x01
on VTR POR
(R/W)
10=Reserved
01=nRTS2
00=GPIO
Bits[6:4] Reserved
Bit[7] Output Type Select
1=Open Drain
0=Push Pull
GP56
45
General Purpose I/0 bit 5.6
Bit[0] In/Out : =1 Input, =0 Output
Bit[1] Polarity : =1 Invert, =0 No Invert
Bit[3:2] Alternate Function Select
11=Reserved
Default = 0x01
on VTR POR
(R/W)
10=Reserved
01=nCTS2
00=GPIO
Bits[6:4] Reserved
Bit[7] Output Type Select
1=Open Drain
0=Push Pull
GP57
46
General Purpose I/0 bit 5.7
Bit[0] In/Out : =1 Input, =0 Output
Bit[1] Polarity : =1 Invert, =0 No Invert
Bit[3:2] Alternate Function Select
11=Reserved
Default = 0x01
on VTR POR
(R/W)
10=Reserved
01=nDTR2
00=GPIO
Bits[6:4] Reserved
Bit[7] Output Type Select
1=Open Drain
0=Push Pull
GP60
47
General Purpose I/0 bit 6.0
Bit[0] In/Out : =1 Input, =0 Output
Bit[1] Polarity : =1 Invert, =0 No Invert
Bit[3:2] Alternate Function Select
11=Reserved
Default = 0x01
on VTR POR
(R/W)
10=Either Edge Triggered Interrupt Input 4 (Note 1)
01=LED1
00=GPIO
Bits[6:4] Reserved
Bit[7] Output Type Select
1=Open Drain
0=Push Pull
SMSC DS – LPC47M14X
Page 145
Rev. 03/19/2001
SMSC [ SMSC CORPORATION ]
