Datasheet

LPC122X All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 2 — 26 August 2011 10 of 61
NXP Semiconductors
LPC122x
32-bit ARM Cortex-M0 microcontroller
PIO0_17/MOSI 32 44
[2]
[3]
no I/O I; PU PIO0_17 — General purpose digital input/output pin.
I/O - MOSI — Master Out Slave In for SSP/SPI.
PIO0_18/SWCLK/
CT32B0_CAP0/
CT32B0_MAT0
33 45
[2]
[3]
no I/O I; PU PIO0_18 — General purpose digital input/output pin.
I- SWCLK — Serial wire clock, alternate location.
I- CT32B0_CAP0 — Capture input, channel 0 for 32-bit timer 0.
O- CT32B0_MAT0 — Match output, channel 0 for 32-bit timer 0.
PIO0_19/ACMP0_I0/
CT32B0_CAP1/
CT32B0_MAT1
44
[6]
[7]
no I/O I; PU PIO0_19 — General purpose digital input/output pin.
I- ACMP0_I0 — Input 0 for comparator 0.
I- CT32B0_CAP1 — Capture input, channel 1 for 32-bit timer 0.
O- CT32B0_MAT1 — Match output, channel 1 for 32-bit timer 0
PIO0_20/ACMP0_I1/
CT32B0_CAP2/
CT32B0_MAT2
55
[6]
[7]
no I/O I; PU PIO0_20 — General purpose digital input/output pin.
I- ACMP0_I1 — Input 1 for comparator 0.
I- CT32B0_CAP2 — Capture input, channel 2 for 32-bit timer 0.
O- CT32B0_MAT2 — Match output, channel 2 for 32-bit timer 0.
PIO0_21/ACMP0_I2/
CT32B0_CAP3/
CT32B0_MAT3
66
[6]
[7]
no I/O I; PU PIO0_21 — General purpose digital input/output pin.
I- ACMP0_I2 — Input 2 for comparator 0.
I- CT32B0_CAP3 — Capture input, channel 3 for 32-bit timer 0.
O- CT32B0_MAT3 — Match output, channel 3 for 32-bit timer 0.
PIO0_22/ACMP0_I3 7 7
[6]
[7]
no I/O I; PU PIO0_22 — General purpose digital input/output pin.
I- ACMP0_I3 — Input 3 for comparator 0.
PIO0_23/
ACMP1_I0/
CT32B1_CAP0/
CT32B1_MAT0
88
[6]
[7]
no I/O I; PU PIO0_23 — General purpose digital input/output pin.
I- ACMP1_I0 — Input 0 for comparator 1.
I- CT32B1_CAP0 — Capture input, channel 0 for 32-bit timer 1.
O- CT32B1_MAT0 — Match output, channel 0 for 32-bit timer 1.
PIO0_24/ACMP1_I1/
CT32B1_CAP1/
CT32B1_MAT1
99
[6]
[7]
no I/O I; PU PIO0_24 — General purpose digital input/output pin.
I- ACMP1_I1 — Input 1 for comparator 1.
I- CT32B1_CAP1 — Capture input, channel 1 for 32-bit timer 1.
O- CT32B1_MAT1 — Match output, channel 1 for 32-bit timer 1.
SWDIO/ACMP1_I2/
CT32B1_CAP2/
CT32B1_MAT2/
PIO0_25
10 10
[6]
[7]
no I/O I; PU SWDIO — Serial wire debug input/output, default location.
I- ACMP1_I2 — Input 2 for comparator 1.
I- CT32B1_CAP2 — Capture input, channel 2 for 32-bit timer 1.
O- CT32B1_MAT2 — Match output, channel 2 for 32-bit timer 1.
I/O - PIO0_25 — General purpose digital input/output pin.
SWCLK/ACMP1_I3/
CT32B1_CAP3/
CT32B1_MAT3/
PIO0_26
11 11
[6]
[7]
no I I; PU SWCLK — Serial wire clock, default location.
I- ACMP1_I3 — Input 3 for comparator 1.
I- CT32B1_CAP3 — Capture input, channel 3 or 32-bit timer 1.
O- CT32B1_MAT3 — Match output, channel 3 for 32-bit timer 1.
I/O PIO0_26 — General purpose digital input/output pin.
Table 3. LPC122x pin description
…continued
Symbol
Pin LQFP48 Pin LQFP64
Start
logic
input
Type Reset
state
[1]
Description