LPC2104FBD48SLASH01 datasheet(15/41 Pages) NXP

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LPC2104_2105_2106_7

Product data sheet

Rev. 07 — 20 June 2008

15 of 41

NXP Semiconductors

LPC2104/2105/2106

Single-chip 32-bit microcontrollers

6.8 Pin function select register 1 (PINSEL1 - 0xE002 C004)

The PINSEL1 register controls the functions of the pins as per the settings listed in

Table 7. 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.

Remark: The primary JTAG port and the trace port can be selected only through the

DBGSEL pin at reset (Debug mode). Function control for the pins P0[31:17] is effective

only when the DBGSEL input is pulled LOW during reset.

27:26

P0.13

GPIO Port 0.13

DTR (UART 1)

Match 1.1 (Timer 1)

29:28

P0.14

GPIO Port 0.14

DCD (UART 1)

EINT1

31:30

P0.15

GPIO Port 0.15

RI (UART 1)

EINT2

Table 6.

Pin function select register 0 (PINSEL0 - 0xE002 C000) …continued

PINSEL0

Pin name

Value

Function

Value after reset

Table 7.

Pin function select register 1 (PINSEL1 - 0xE002 C004)

PINSEL1

Pin name

Value

Function

Value after

reset

1:0

P0.16

GPIO Port 0.16

EINT0

Match 0.2 (Timer 0)

3:2

P0.17

GPIO Port 0.17

Capture 1.2 (Timer 1)

5:4

P0.18

GPIO Port 0.18

Capture 1.3 (Timer 1)

7:6

P0.19

GPIO Port 0.19

Match 1.2 (Timer 1)

9:8

P0.20

GPIO Port 0.20

Match 1.3 (Timer 1)

11:10

P0.21

GPIO Port 0.21

PWM5

13:12

P0.22

GPIO Port 0.22

15:14

P0.23

GPIO Port 0.23

17:16

P0.24

GPIO Port 0.24

19:18

P0.25

GPIO Port 0.25

21:20

P0.26

GPIO Port 0.26

23:22

P0.27

GPIO Port 0.27

TRST

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