LPC2158 datasheet(6/45 Pages) NXP

6 / 45 page

LPC2157_2158_2

Product data sheet

Rev. 02 — 9 February 2009

6 of 45

NXP Semiconductors

LPC2157/2158

Single-chip 16-bit/32-bit microcontrollers

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.

P0[9]/RXD1/

PWM6/EINT3

21[2]

I/O

P0[9] — General purpose input/output digital pin (GPIO).

RXD1 — Receiver input for UART1.

PWM6 — Pulse Width Modulator output 6.

EINT3 — External interrupt 3 input.

P0[10]/RTS1/

CAP1[0]/AD1[2]

22[4]

I/O

P0[10] — General purpose input/output digital pin (GPIO).

RTS1 — Request to Send output for UART1.

CAP1[0] — Capture input for Timer 1, channel 0.

AD1[2] — ADC 1, input 2.

P0[11]/CTS1/

CAP1[1]/SCL1

23[3]

I/O

P0[11] — General purpose input/output digital pin (GPIO).

CTS1 — Clear to Send input for UART1.

CAP1[1] — Capture input for Timer 1, channel 1.

I/O

SCL1 — I2C1 clock input/output. Open-drain output (for I2C-bus compliance)

P0[12]/DSR1/

MAT1[0]/AD1[3]

24[4]

I/O

P0[12] — General purpose input/output digital pin (GPIO).

DSR1 — Data Set Ready input for UART1.

MAT1[0] — Match output for Timer 1, channel 0.

AD1[3] — ADC 1 input 3.

P0[13]/DTR1/

MAT1[1]/AD1[4]

25[4]

I/O

P0[13] — General purpose input/output digital pin (GPIO).

DTR1 — Data Terminal Ready output for UART1.

MAT1[1] — Match output for Timer 1, channel 1.

AD1[4] — ADC 1 input 4.

P0[14]/DCD1/

EINT1/SDA1

26[3]

I/O

P0[14] — General purpose input/output digital pin (GPIO).

DCD1 — Data Carrier Detect input for UART1.

EINT1 — External interrupt 1 input.

I/O

SDA1 — I2C1 data input/output. Open-drain output (for I2C-bus compliance).

Note: LOW on this pin while RESET is LOW forces on-chip bootloader to take

over control of the part after reset.

Table 2.

Pin description LPC2157 …continued

Symbol

Type

Description

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