LPC1225FBD48321 datasheet(13/60 Pages) NXP | 32-bit ARM Cortex-M0 microcontroller; up to 128 kB flash and 8 kB SRAM

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LPC122X

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Objective data sheet

Rev. 1.1 — 21 February 2011

13 of 60

NXP Semiconductors

LPC122x

32-bit ARM Cortex-M0 microcontroller

PIO2_6/

CT32B0_CAP2/

CT32B0_MAT2/DCD0

-35

[2]

I/O

I; PU

PIO2_6 — General purpose digital input/output pin.

I-

CT32B0_CAP2 — Capture input, channel 2 for 32-bit timer 0.

O-

CT32B0_MAT2 — Match output, channel 2 for 32-bit timer 0.

I-

DCD0 — Data Carrier Detect input for UART0.

PIO2_7/

CT32B0_CAP3/

CT32B0_MAT3/DSR0

-36

[2]

I/O

I; PU

PIO2_7 — General purpose digital input/output pin.

I-

CT32B0_CAP3 — Capture input, channel 3 for 32-bit timer 0.

O-

CT32B0_MAT3 — Match output, channel 3 for 32-bit timer 0.

I-

DSR0 — Data Set Ready input for UART0.

PIO2_8/

CT32B1_CAP0/

CT32B1_MAT0

-59

[2]

I/O

I; PU

PIO2_8 — General purpose digital input/output pin.

I-

CT32B1_CAP0 — Capture input, channel 0 for 32-bit timer 1.

O-

CT32B1_MAT0 — Match output, channel 0 for 32-bit timer 1.

PIO2_9/

CT32B1_CAP1/

CT32B1_MAT1

-60

[2]

I/O

I; PU

PIO2_9 — General purpose digital input/output pin.

I-

CT32B1_CAP1 — Capture input, channel 1 for 32-bit timer 1.

O-

CT32B1_MAT1 — Match output, channel 1 for 32-bit timer 1.

PIO2_10/

CT32B1_CAP2/

CT32B1_MAT2/TXD1

-61

[2]

I/O

I; PU

PIO2_10 — General purpose digital input/output pin.

I-

CT32B1_CAP2 — Capture input, channel 2 for 32-bit timer 1.

O-

CT32B1_MAT2 — Match output, channel 2 for 32-bit timer 1.

O-

TXD1 — Transmitter output for UART1.

PIO2_11/

CT32B1_CAP3/

CT32B1_MAT3/RXD1

-62

[2]

I/O

I; PU

PIO2_11 — General purpose digital input/output pin.

I-

CT32B1_CAP3 — Capture input, channel 3 for 32-bit timer 1.

O-

CT32B1_MAT3 — Match output, channel 3 for 32-bit timer 1.

I-

RXD1 — Receiver input for UART1.

PIO2_12/RXD1

[2]

I/O

I; PU

PIO2_12 — General purpose digital input/output pin.

I-

RXD1 — Receiver input for UART1.

PIO2_13/TXD1

[2]

I/O

I; PU

PIO2_13 — General purpose digital input/output pin.

O-

TXD1 — Transmitter output for UART1.

PIO2_14

[2]

I/O

I; PU

PIO2_14 — General purpose digital input/output pin.

PIO2_15

[2]

I/O

I; PU

PIO2_15 — General purpose digital input/output pin.

RTCXIN

46 57

Input to the 32 kHz oscillator circuit.

RTCXOUT

45 58

Output from the 32 kHz oscillator amplifier.

XTALIN

Input to the system oscillator circuit and internal clock

generator circuits.

XTALOUT

Output from the system oscillator amplifier.

VREF_CMP

Reference voltage for comparator.

Table 3.

LPC122x pin description …continued

Symbol

Start

logic

input

Type Reset

state

[1]

Description

LPC1225FBD48321 Datasheet(PDF) 13 Page - NXP Semiconductors

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