LPC2158 datasheet(10/45 Pages) PHILIPS

10 / 45 page

LPC2157_2158_2

Product data sheet

Rev. 02 — 9 February 2009

10 of 45

NXP Semiconductors

LPC2157/2158

Single-chip 16-bit/32-bit microcontrollers

Table 3.

Pin description LPC2158

Symbol

Type

Description

P0[0] to P0[31]

I/O

Port 0: Port 0 is a 32-bit I/O port with individual direction controls for each bit.

Total of 29 pins of the Port 0 can be used as a general purpose bidirectional

digital I/Os while P0[31] is output only pin. The operation of port 0 pins

depends upon the pin function selected via the pin connect block.

Pins P0[24], P0[26] and P0[27] are not available.

P0[0]/TXD0/

PWM1

7[1]

I/O

P0[0] — General purpose input/output digital pin (GPIO).

TXD0 — Transmitter output for UART0.

PWM1 — Pulse Width Modulator output 1.

P0[1]/RXD0/

PWM3/EINT0

9[2]

I/O

P0[1] — General purpose input/output digital pin (GPIO).

RXD0 — Receiver input for UART0.

PWM3 — Pulse Width Modulator output 3.

EINT0 — External interrupt 0 input.

P0[2]/SCL0/

CAP0[0]

10[3]

I/O

P0[2] — General purpose input/output digital pin (GPIO).

I/O

SCL0 — I2C0 clock input/output. Open-drain output (for I2C-bus compliance).

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

P0[3]/SDA0/

MAT0[0]/EINT1

14[3]

I/O

P0[3] — General purpose input/output digital pin (GPIO).

I/O

SDA0 — I2C0 data input/output. Open-drain output (for I2C-bus compliance).

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

EINT1 — External interrupt 1 input.

P0[4]/SCK0/

CAP0[1]/AD0[6]

15[4]

I/O

P0[4] — General purpose input/output digital pin (GPIO).

I/O

SCK0 — Serial clock for SPI0. SPI clock output from master or input to slave.

CAP0[1] — Capture input for Timer 0, channel 1.

AD0[6] — ADC 0, input 6.

P0[5]/MISO0/

MAT0[1]/AD0[7]

17[4]

I/O

P0[5] — General purpose input/output digital pin (GPIO).

I/O

MISO0 — Master In Slave Out for SPI0. Data input to SPI master or data

output from SPI slave.

MAT0[1] — Match output for Timer 0, channel 1.

AD0[7] — ADC 0, input 7.

P0[6]/MOSI0/

CAP0[2]/AD1[0]

18[4]

I/O

P0[6] — General purpose input/output digital pin (GPIO).

I/O

MOSI0 — Master Out Slave In for SPI0. Data output from SPI master or data

input to SPI slave.

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

AD1[0] — ADC 1, input 0.

P0[7]/SSEL0/

PWM2/EINT2

19[2]

I/O

P0[7] — General purpose input/output digital pin (GPIO).

SSEL0 — Slave Select for SPI0. Selects the SPI interface as a slave.

PWM2 — Pulse Width Modulator output 2.

EINT2 — External interrupt 2 input.

P0[8]/TXD1/

PWM4/AD1[1]

20[4]

I/O

P0[8] — General purpose input/output digital pin (GPIO).

TXD1 — Transmitter output for UART1.

PWM4 — Pulse Width Modulator output 4.

AD1[1] — ADC 1, input 1.

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