LPC1850 datasheet(57/142 Pages) NXP

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LPC1850_30_20_10

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Preliminary data sheet

Rev. 2.2 — 9 September 2011

57 of 142

NXP Semiconductors

LPC1850/30/20/10

32-bit ARM Cortex-M3 microcontroller

Reset and wake-up pins

RESET

128

[11]

I; IA

External reset input: A LOW on this pin resets the

device, causing I/O ports and peripherals to take on

their default states, and processor execution to begin

at address 0.

WAKEUP0

130

[11]

I; IA

External wake-up input; can raise an interrupt and can

cause wake-up from any of the low power modes.

WAKEUP1

A10

[11]

I; IA

External wake-up input; can raise an interrupt and can

cause wake-up from any of the low power modes.

WAKEUP2

[11]

I; IA

External wake-up input; can raise an interrupt and can

cause wake-up from any of the low power modes.

WAKEUP3

[11]

I; IA

External wake-up input; can raise an interrupt and can

cause wake-up from any of the low power modes.

ADC pins

ADC0_0/

ADC1_0/DAC

[8]

I; IA

ADC input channel 0. Shared between 10-bit ADC0/1

and DAC.

ADC0_1/

ADC1_1

[8]

I; IA

ADC input channel 1. Shared between 10-bit ADC0/1.

ADC0_2/

ADC1_2

143

[8]

I; IA

ADC input channel 2. Shared between 10-bit ADC0/1.

ADC0_3/

ADC1_3

139

[8]

I; IA

ADC input channel 3. Shared between 10-bit ADC0/1.

ADC0_4/

ADC1_4

138

[8]

I; IA

ADC input channel 4. Shared between 10-bit ADC0/1.

ADC0_5/

ADC1_5

144

[8]

I; IA

ADC input channel 5. Shared between 10-bit ADC0/1.

ADC0_6/

ADC1_6

142

[8]

I; IA

ADC input channel 6. Shared between 10-bit ADC0/1.

ADC0_7/

ADC1_7

136

[8]

I; IA

ADC input channel 7. Shared between 10-bit ADC0/1.

RTC

RTC_ALARM

A11

129

[11]

RTC controlled output.

RTCX1

125

[8]

Input to the RTC 32 kHz ultra-low power oscillator

circuit.

RTCX2

126

[8]

Output from the RTC 32 kHz ultra-low power oscillator

circuit.

Crystal oscillator pins

XTAL1

[8]

Input to the oscillator circuit and internal clock

generator circuits.

XTAL2

[8]

Output from the oscillator amplifier.

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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