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 11 of 61
NXP Semiconductors
LPC122x
32-bit ARM Cortex-M0 microcontroller
PIO0_27/ACMP0_O 12 12
[9]
no I/O I; PU PIO0_27 — General purpose digital input/output pin
(high-current output driver).
O- ACMP0_O — Output for comparator 0.
PIO0_28/ACMP1_O/
CT16B0_CAP0/
CT16B0_MAT0
13 17
[9]
no I/O I; PU PIO0_28 — General purpose digital input/output pin
(high-current output driver).
O- ACMP1_O — Output for comparator 1.
I- CT16B0_CAP0 — Capture input, channel 0 for 16-bit timer 0.
O- CT16B0_MAT0 — Match output, channel 0 for 16-bit timer 0.
PIO0_29/ROSC/
CT16B0_CAP1/
CT16B0_MAT1
14 18
[9]
no I/O I; PU PIO0_29 — General purpose digital input/output pin
(high-current output driver).
I/O - ROSC — Relaxation oscillator for 555 timer applications.
I- CT16B0_CAP1 — Capture input, channel 1 for 16-bit timer 0.
O- CT16B0_MAT1 — Match output, channel 1 for 16-bit timer 0.
R/PIO0_30/AD0 34 46
[6]
[3]
no I I; PU R — Reserved. Configure for an alternate function in the
IOCONFIG block.
I/O - PIO0_30 — General purpose digital input/output pin.
I- AD0 — A/D converter, input 0.
R/PIO0_31/AD1 35 47
[6]
[3]
no I I; PU R — Reserved. Configure for an alternate function in the
IOCONFIG block.
I/O - PIO0_31 — General purpose digital input/output pin.
I- AD1 — A/D converter, input 1.
PIO1_0 to PIO1_6 I/O Port 1 — Port 1 is a 32-bit I/O port with individual direction and
function controls for each bit. The operation of port 1 pins
depends on the function selected through the IOCONFIG
register block. Pins PIO1_7 through PIO1_31 are not available.
R/PIO1_0/AD2 36 48
[6]
[3]
no O I; PU R — Reserved. Configure for an alternate function in the
IOCONFIG block.
I/O - PIO1_0 — General purpose digital input/output pin.
I- AD2 — A/D converter, input 2.
R/PIO1_1/AD3 37 49
[6]
[3]
no I I; PU R — Reserved. Configure for an alternate function in the
IOCONFIG block.Do not pull this pin LOW at reset.
I/O - PIO1_1 — General purpose digital input/output pin.
I- AD3 — A/D converter, input 3.
PIO1_2/SWDIO/AD4 38 50
[6]
[3]
no I/O I; PU PIO1_2 — General purpose digital input/output pin.
I/O - SWDIO — Serial wire debug input/output, alternate location.
I- AD4 — A/D converter, input 4.
PIO1_3/AD5/WAKEUP 39 51
[8]
[3]
no I/O I; PU PIO1_3 — General purpose digital input/output pin.
I- AD5 — A/D converter, input 5.
I- WAKEUP — Deep power-down mode wake-up pin.
PIO1_4/AD6 40 52
[6]
[3]
no I/O I; PU PIO1_4 — General purpose digital input/output pin.
I- AD6 — A/D converter, input 6.
Table 3. LPC122x pin description …continued
Symbol
Pin LQFP48 Pin LQFP64
Start
logic
input
Type Reset
state
[1]
Description