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LPC2210FBD144

16/32-bit ARM microcontrollers; flashless with 64 kB, with 10-bit ADC and external memory interface

Philips Electronics 

Philips Semiconductors

LPC2210/2220

16/32-bit ARM microcontrollers with external memory interface

6.8 Pin function select register 2 (PINSEL2 - 0xE002 C014)

The PINSEL2 register controls the functions of the pins as per the settings listed in

Table 9. The direction control bit in the IODIR register is effective only when the GPIO

function is selected for a pin. For other functions direction is controlled automatically.

Settings other than those shown in the Table 9 are reserved, and should not be used.

Table 9: Pin function select register 2 (PINSEL2 - 0xE002 C014)

PINSEL2 bits Description

Reset value

1:0

reserved.

-

2

When 0, pins P1[36:26] are used as GPIO pins. When 1, P1[31:26] are used as a P1.26/RTCK

Debug port.

3

When 0, pins P1[25:16] are used as GPIO pins. When 1, P1[25:16] are used as a P1.20/

Trace port.

TRACESYNC

5:4

Controls the use of the data bus and strobe pins:

BOOT1:0

Pins P2[7:0]

11 = P2[7:0]

0x or 10 = D7 to D0

Pin P1.0

11 = P1.0

0x or 10 = CS0

Pin P1.1

11 = P1.1

0x or 10 = OE

Pin P3.31

11 = P3.31

0x or 10 = BLS0

Pins P2[15:8]

00 or 11 = P2[15:8]

01 or 10 = D15:8

Pin P3.30

00 or 11 = P3.30

01 or 10 = BLS1

Pins P2[27:16]

0x or 11 = P2[27:16]

10 = D27 to D16

Pins P2[29:28]

0x or 11 = P2[29:28] or reserved

10 = D29, D28

Pins P2[31:30]

0x or 11 = P2[31:30] or AIN5:4

10 = D31, D30

Pins P3[29:28]

0x or 11 = P3[29:28] or AIN6:7

10 = BLS2, BLS3

6

If bits 5:4 are not 10, controls the use of pin P3.29: 0 enables P3.29, 1 enables 1

AIN6.

7

If bits 5:4 are not 10, controls the use of pin P3.28: 0 enables P3.28, 1 enables 1

AIN7.

8

Controls the use of pin P3.27: 0 enables P3.27, 1 enables WE.

0

10:9

reserved.

-

11

Controls the use of pin P3.26: 0 enables P3.26, 1 enables CS1.

0

12

reserved.

-

13

If bits 27:25 are not 111, controls the use of pin P3.23/A23/XCLK: 0 enables P3.23, 0

1 enables XCLK.

15:14

Controls the use of pin P3.25: 00 enables P3.25, 01 enables CS2, 10 and 11 are 00

reserved values.

17:16

Controls the use of pin P3.24: 00 enables P3.24, 01 enables CS3, 10 and 11 are 00

reserved values.

19:18

reserved.

-

20

If bits 5:4 are not 10, controls the use of pin P2[29:28]: 0 enables P2[29:28], 1 is 0

reserved

21

If bits 5:4 are not 10, controls the use of pin P2.30: 0 enables P2.30, 1 enables 1

AIN4.

22

If bits 5:4 are not 10, controls the use of pin P2.31: 0 enables P2.31, 1 enables 1

AIN5.

9397 750 14061

Product data sheet

Rev. 02— 30 May 2005

© Koninklijke Philips Electronics N.V. 2005. All rights reserved.

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