LPC2142 datasheet(9/40 Pages) NXP

9 / 40 page

LPC2141_42_44_46_48_4

Product data sheet

Rev. 04 — 17 November 2008

9 of 40

NXP Semiconductors

LPC2141/42/44/46/48

Single-chip 16-bit/32-bit microcontrollers

P0.18/CAP1.3/

MISO1/MAT1.3

53[1]

I/O

P0.18 — General purpose input/output digital pin (GPIO).

CAP1.3 — Capture input for Timer 1, channel 3.

I/O

MISO1 — Master In Slave Out for SSP. Data input to SPI master or data

output from SSP slave.

MAT1.3 — Match output for Timer 1, channel 3.

P0.19/MAT1.2/

MOSI1/CAP1.2

54[1]

I/O

P0.19 — General purpose input/output digital pin (GPIO).

MAT1.2 — Match output for Timer 1, channel 2.

I/O

MOSI1 — Master Out Slave In for SSP. Data output from SSP master or data

input to SSP slave.

CAP1.2 — Capture input for Timer 1, channel 2.

P0.20/MAT1.3/

SSEL1/EINT3

55[2]

I/O

P0.20 — General purpose input/output digital pin (GPIO).

MAT1.3 — Match output for Timer 1, channel 3.

SSEL1 — Slave Select for SSP. Selects the SSP interface as a slave.

EINT3 — External interrupt 3 input.

P0.21/PWM5/

AD1.6/CAP1.3

1[4]

I/O

P0.21 — General purpose input/output digital pin (GPIO).

PWM5 — Pulse Width Modulator output 5.

AD1.6 — ADC 1, input 6. Available in LPC2144/46/48 only.

CAP1.3 — Capture input for Timer 1, channel 3.

P0.22/AD1.7/

CAP0.0/MAT0.0

2[4]

I/O

P0.22 — General purpose input/output digital pin (GPIO).

AD1.7 — ADC 1, input 7. Available in LPC2144/46/48 only.

CAP0.0 — Capture input for Timer 0, channel 0.

MAT0.0 — Match output for Timer 0, channel 0.

P0.23/VBUS

58[1]

I/O

P0.23 — General purpose input/output digital pin (GPIO).

VBUS — Indicates the presence of USB bus power.

Note: This signal must be HIGH for USB reset to occur.

P0.25/AD0.4/

AOUT

9[5]

I/O

P0.25 — General purpose input/output digital pin (GPIO).

AD0.4 — ADC 0, input 4.

AOUT — DAC output. Available in LPC2142/44/46/48 only.

P0.28/AD0.1/

CAP0.2/MAT0.2

13[4]

I/O

P0.28 — General purpose input/output digital pin (GPIO).

AD0.1 — ADC 0, input 1.

CAP0.2 — Capture input for Timer 0, channel 2.

MAT0.2 — Match output for Timer 0, channel 2.

P0.29/AD0.2/

CAP0.3/MAT0.3

14[4]

I/O

P0.29 — General purpose input/output digital pin (GPIO).

AD0.2 — ADC 0, input 2.

CAP0.3 — Capture input for Timer 0, channel 3.

MAT0.3 — Match output for Timer 0, channel 3.

P0.30/AD0.3/

EINT3/CAP0.0

15[4]

I/O

P0.30 — General purpose input/output digital pin (GPIO).

AD0.3 — ADC 0, input 3.

EINT3 — External interrupt 3 input.

CAP0.0 — Capture input for Timer 0, channel 0.

Table 3.

Pin description …continued

Symbol

Type

Description

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