UM10503
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© NXP B.V. 2012. All rights reserved.
User manual
Rev. 1.3 — 6 July 2012
334 of 1269
NXP Semiconductors
UM10503
Chapter 17: LPC43xx GPIO
Table 185. Register overview: GPIO port (base address 0x400F 4000)
The highest pin number on each port depends on package size (see
Name
Access
Address
offset
Description
Reset
value
Width
Reference
B0 to B31
R/W
0x0000 to x001F
Byte pin registers port 0; pins PIO0_0
to PIO0_31
byte (8 bit)
B32 to B63
R/W
0x0020 to 0x003F
Byte pin registers port 1
ext
byte (8 bit)
B64 to B95
R/W
0x0040 to 0x005F
Byte pin registers port 2
ext
byte (8 bit)
B96 to B127
R/W
0x0060 to 0x007F
Byte pin registers port 3
ext
byte (8 bit)
B128 to B159
R/W
0x0080 to 0x009F
Byte pin registers port 4
ext
byte (8 bit)
B160 to B191
R/W
0x00A0 to 0x00BF Byte pin registers port 5
ext
byte (8 bit)
B192 to B223
R/W
0x00C0 to0x00DF
Byte pin registers port 6
ext
byte (8 bit)
B224 to B255
R/W
0x00E0 to 0x00FC Byte pin registers port 7
ext
byte (8 bit)
W0 to W31
R/W
0x1000 to 0x107C Word pin registers port 0
ext
word (32 bit)
W32 to W63
R/W
0x1080 to 0x10FC Word pin registers port 1
ext
word (32 bit)
W64 to W95
R/W
0x1100 to 0x11FC
Word pin registers port 2
ext
word (32 bit)
W96 to W127
R/W
0x1180 to 0x11FC
Word pin registers port 3
ext
word (32 bit)
W128 to
W159
R/W
0x1200 to 0x12FC Word pin registers port 4
ext
word (32 bit)
W160 to
W191
R/W
0x1280 to 0x12FC Word pin registers port 5
ext
word (32 bit)
W192 to
W223
R/W
0x1300 to 0x137C Word pin registers port 6
ext
word (32 bit)
W224 to
W255
R/W
0x1380 to 0x13FC Word pin registers port 7
ext
word (32 bit)
DIR0
R/W
0x2000
Direction registers port 0
0
word (32 bit)
DIR1
R/W
0x2004
Direction registers port 1
0
word (32 bit)
DIR2
R/W
0x2008
Direction registers port 2
0
word (32 bit)
DIR3
R/W
0x200C
Direction registers port 3
0
word (32 bit)
DIR4
R/W
0x2010
Direction registers port 4
0
word (32 bit)
DIR5
R/W
0x2014
Direction registers port 5
0
word (32 bit)
DIR6
R/W
0x2018
Direction registers port 6
0
word (32 bit)
DIR7
R/W
0x201C
Direction registers port 7
0
word (32 bit)
MASK0
R/W
0x2080
Mask register port 0
0
word (32 bit)
MASK1
R/W
0x2084
Mask register port 1
0
word (32 bit)
MASK2
R/W
0x2088
Mask register port 2
0
word (32 bit)
MASK3
R/W
0x208C
Mask register port 3
0
word (32 bit)
MASK4
R/W
0x2090
Mask register port 4
0
word (32 bit)
MASK5
R/W
0x2094
Mask register port 5
0
word (32 bit)
MASK6
R/W
0x2098
Mask register port 6
0
word (32 bit)
MASK7
R/W
0x209C
Mask register port 7
0
word (32 bit)
PIN0
R/W
0x2100
Port pin register port 0
ext
word (32 bit)
PIN1
R/W
0x2104
Port pin register port 1
ext
word (32 bit)
PIN2
R/W
0x2108
Port pin register port 2
ext
word (32 bit)
PIN3
R/W
0x210C
Port pin register port 3
ext
word (32 bit)