Philips LPC2119 User Manual page 104

Philips Semiconductors
ARM-based Microcontroller
Table 64: Pin Function Select Register 2 for LPC2292/2294 (PINSEL2 - 0xE002C014)
PINSEL2
1:0 Reserved.
2 When 0, pins P1.36:26 are used as GPIO pins. When 1, P1.31:26 are used as a Debug port.
3 When 0, pins P1.25:16 are used as GPIO pins. When 1, P1.25:16 are used as a Trace port.
Controls the use of the data bus and strobe pins:
Pins P2.7:0
Pin P1.0
Pin P1.1
Pin P3.31
5:4 Pins P2.15:8
Pin P3.30
Pins P2.27:16
Pins P2.29:28
Pins P2.31:30
Pins P3.29:28
6 If bits 5:4 are not 10, controls the use of pin P3.29: 0 enables P3.29, 1 enables AIN6.
7 If bits 5:4 are not 10, controls the use of pin P3.28: 0 enables P3.28, 1 enables AIN7.
8 Controls the use of pin P3.27: 0 enables P3.27, 1 enables WE.
10:9 Reserved.
11 Controls the use of pin P3.26: 0 enables P3.26, 1 enables CS1.
12 Reserved.
If bits 25:23 are not 111, controls the use of pin P3.23/A23/XCLK: 0 enables P3.23, 1 enables
13
XCLK.
15:14 Controls the use of pin P3.25: 00 enables P3.25, 01 enables CS2, 10 and 11 are reserved values.
17:16 Controls the use of pin P3.24: 00 enables P3.24, 01 enables CS3, 10 and 11 are reserved values.
19:18 Reserved.
If bits 5:4 are not 10, controls the use of pin P2.29:28: 0 enables P2.29:28, 1 is CAN6.
20 Warning: it is possible to select 2 pins for RD6, by setting bits 5:4 to 0x or 11, bits 15;14 to 11 and
bit 20 to 1. This situation could be called a programming error. In this case, bit 20 predominatets
and RD6 is taken from P2.28.
21 If bits 5:4 are not 10, controls the use of pin P2.30: 0 enables P2.30, 1 enables AIN4.
22 If bits 5:4 are not 10, controls the use of pin P2.31: 0 enables P2.31, 1 enables AIN5.
23 Controls whether P3.0/A0 is a port pin (0) or an address line (1).
Pin Connect Block
Description
11 = P2.7:0
11 = P1.0
11 = P1.1
11 = P3.31
00 or 11 = P2.15:8
00 or 11 = P3.30
0x or 11 = P2.27:16
0x or 11 = P2.29:28 or CAN6
0x or 11 = P2.31:30 or AIN5:4
0x or 11 = P3.29:28 or AIN6:7
104
Preliminary User Manual
LPC2119/2129/2292/2294
0x or 10 = D7:0
0x or 10 = CS0
0x or 10 = OE
0x or 10 = BLS0
01 or 10 = D15:8
01 or 10 = BLS1
10 = D27:16
10 = D29:28
10 = D31:30
10 = BLS2:3
January 08, 2004
Reset Value
P1.26/RTCK
P1.20/
TRACESYNC
BOOT1:0
1
1
0
-
0
-
0
00
00
-
0
1
1
1 if
BOOT1:0=00
at RESET=0,
0 otherwise