LPC1850 datasheet(16/157 Pages) PHILIPS

16 / 157 page

LPC1850_30_20_10

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Preliminary data sheet

Rev. 3 — 6 December 2011

16 of 157

NXP Semiconductors

LPC1850/30/20/10

32-bit ARM Cortex-M3 microcontroller

P2_3

J12

127

[4]

I; PU -

R — Function reserved.

I/O

I2C1_SDA — I2C1 data input/output (this pin does

not use a specialized I2C pad).

U3_TXD — Transmitter output for USART3.

CTIN_1 — SCT input 1. Capture input 1 of timer 0.

Capture input 1 of timer 2.

I/O

GPIO5[3] — General purpose digital input/output pin.

R — Function reserved.

T3_MAT0 — Match output 0 of timer 3.

USB0_PPWR — VBUS drive signal (towards

external charge pump or power management unit);

indicates that VBUS must be driven (active HIGH).

Add a pull-down resistor to disable the power switch

at reset. This signal has opposite polarity compared

to the USB_PPWR used on other NXP LPC parts.

P2_4

K11

128

[4]

I; PU -

R — Function reserved.

I/O

I2C1_SCL — I2C1 clock input/output (this pin does

not use a specialized I2C pad).

U3_RXD — Receiver input for USART3.

CTIN_0 — SCT input 0. Capture input 0 of timer 0, 1,

2, 3.

I/O

GPIO5[4] — General purpose digital input/output pin.

R — Function reserved.

T3_MAT1 — Match output 1 of timer 3.

USB0_PWR_FAULT — Port power fault signal

indicating overcurrent condition; this signal monitors

over-current on the USB bus (external circuitry

required to detect over-current condition).

P2_5

K14

D10 131

[4]

I; PU -

R — Function reserved.

CTIN_2 — SCT input 2. Capture input 2 of timer 0.

USB1_VBUS — Monitors the presence of USB1 bus

power.

Note: This signal must be HIGH for USB reset to

occur.

ADCTRIG1 — ADC trigger input 1.

I/O

GPIO5[5] — General purpose digital input/output pin.

R — Function reserved.

T3_MAT2 — Match output 2 of timer 3.

USB0_IND0 — USB0 port indicator LED control

output 0.

Table 3.

Pin description …continued

LCD, Ethernet, USB0, and USB1 functions are not available on all parts. See Table 2.

Symbol

Description

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