LPC2220 PHILIPS [NXP Semiconductors], LPC2220 Datasheet - Page 21

• Manufacturer Part Number: LPC2220
• Description: 16/32-bit ARM microcontrollers; flashless with 64 kB, with 10-bit ADC and external memory interface
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
Table 9:
9397 750 14061
Product data sheet
PINSEL2 bits
1:0
2
3
5:4
6
7
8
10:9
11
12
13
15:14
17:16
19:18
20
21
22
Pin function select register 2 (PINSEL2 - 0xE002 C014)
6.8 Pin function select register 2 (PINSEL2 - 0xE002 C014)
Description
reserved.
When 0, pins P1[36:26] are used as GPIO pins. When 1, P1[31:26] are used as a
Debug port.
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
Pins P2[15:8]
Pin P3.30
Pins P2[27:16]
Pins P2[29:28]
Pins P2[31:30]
Pins P3[29:28]
If bits 5:4 are not 10, controls the use of pin P3.29: 0 enables P3.29, 1 enables
AIN6.
If bits 5:4 are not 10, controls the use of pin P3.28: 0 enables P3.28, 1 enables
AIN7.
Controls the use of pin P3.27: 0 enables P3.27, 1 enables WE.
reserved.
Controls the use of pin P3.26: 0 enables P3.26, 1 enables CS1.
reserved.
If bits 27:25 are not 111, controls the use of pin P3.23/A23/XCLK: 0 enables P3.23,
1 enables XCLK.
Controls the use of pin P3.25: 00 enables P3.25, 01 enables CS2, 10 and 11 are
reserved values.
Controls the use of pin P3.24: 00 enables P3.24, 01 enables CS3, 10 and 11 are
reserved values.
reserved.
If bits 5:4 are not 10, controls the use of pin P2[29:28]: 0 enables P2[29:28], 1 is
reserved
If bits 5:4 are not 10, controls the use of pin P2.30: 0 enables P2.30, 1 enables
AIN4.
If bits 5:4 are not 10, controls the use of pin P2.31: 0 enables P2.31, 1 enables
AIN5.
The PINSEL2 register controls the functions of the pins as per the settings listed in
Table
function is selected for a pin. For other functions direction is controlled automatically.
Settings other than those shown in the
9. The direction control bit in the IODIR register is effective only when the GPIO
00 or 11 = P2[15:8]
00 or 11 = P3.30
0x or 11 = P2[27:16]
0x or 11 = P2[29:28] or reserved
0x or 11 = P2[31:30] or AIN5:4
0x or 11 = P3[29:28] or AIN6:7
11 = P2[7:0]
11 = P1.0
11 = P1.1
11 = P3.31
16/32-bit ARM microcontrollers with external memory interface
Rev. 02— 30 May 2005
Table 9
01 or 10 = D15:8
01 or 10 = BLS1
0x or 10 = D7 to D0
0x or 10 = CS0
0x or 10 = OE
0x or 10 = BLS0
are reserved, and should not be used.
10 = D27 to D16
10 = D29, D28
10 = D31, D30
10 = BLS2, BLS3
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
LPC2210/2220
Reset value
-
P1.26/RTCK
P1.20/
TRACESYNC
BOOT1:0
1
1
0
-
0
-
0
00
00
-
0
1
1
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