
NXP Semiconductors
PNX15xx/952x Series
Volume 1 of 1
Chapter 8: General Purpose Input Output Pins
PNX15XX_PNX952X_SER_N_4
NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 4.0 — 03 December 2007
8-290
4.1 GPIO Mode Control Registers
Table 7: GPIO Mode Control Registers
Bit
Symbol
Acces
s
Value
Description
Offset 0x10,4000
Mode Control for GPIO pins 15—0
31:30
MC for GPIO number 15 R/W
0b11
The Mode Control (MC) bit pairs control the mode of the
corresponding GPIO pin. The number portion of MCxx identies the
The following values apply to writing to all of the bit pairs:
00 - retain current GPIO Mode of operation (will not overwrite
current mode). Not readable
01 - place Pin in primary function mode
10 - place Pin in GPIO function mode
11 - place Pin in GPIO function with Open-Drain Output mode
29:28
MC for GPIO number 14 R/W
0b11
27:26
MC for GPIO number 13 R/W
0b11
25:24
MC for GPIO number 12 R/W
0b11
23:22
MC for GPIO number 11 R/W
0b11
21:20
MC for GPIO number 10 R/W
0b11
19:18
MC for GPIO number 09 R/W
0b11
17:16
MC for GPIO number 08 R/W
0b11
15:14
MC for GPIO number 07 R/W
0b11
13:12
MC for GPIO number 06 R/W
0b11
11:10
MC for GPIO number 05 R/W
0b11
9:8
MC for GPIO number 04 R/W
0b11
7:6
MC for GPIO number 03 R/W
0b11
5:4
MC for GPIO number 02 R/W
0b11
3:2
MC for GPIO number 01 R/W
0b11
1:0
MC for GPIO number 00 R/W
0b11
Offset 0x10,4004
Mode Control for GPIO pins 31—16
31:30
MC for GPIO number 31 R/W
0b11
The Mode Control (MC) bit pairs control the mode of the
corresponding GPIO pin. The number portion of MCxx identies the
The following values apply to writing to all of the bit pairs:
00 - retain current GPIO Mode of operation (will not overwrite
current mode). Not readable
01 - place Pin in primary function mode
10 - place Pin in GPIO function mode
11 - place Pin in GPIO function with Open-Drain Output mode
29:28
MC for GPIO number 30 R/W
0b11
27:26
MC for GPIO number 29 R/W
0b11
25:24
MC for GPIO number 28 R/W
0b11
23:22
MC for GPIO number 27 R/W
0b11
21:20
MC for GPIO number 26 R/W
0b11
19:18
MC for GPIO number 25 R/W
0b11
17:16
MC for GPIO number 24 R/W
0b11
15:14
MC for GPIO number 23 R/W
0b11
13:12
MC for GPIO number 22 R/W
0b11
11:10
MC for GPIO number 21 R/W
0b11
9:8
MC for GPIO number 20 R/W
0b11
7:6
MC for GPIO number 19 R/W
0b11
5:4
MC for GPIO number 18 R/W
0b11
3:2
MC for GPIO number 17 R/W
0b11
1:0
MC for GPIO number 16 R/W
0b11