Datasheet

LPC12D27 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 1 — 20 September 2011 11 of 46
NXP Semiconductors
LPC12D27
32-bit ARM Cortex-M0 microcontroller
SWDIO/ACMP1_I2/
CT32B1_CAP2/
CT32B1_MAT2/PIO0_25
1
[5]
no I; PU I/O 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
2
[5]
no I; PU I 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.
PIO0_27/ACMP0_O 3
[7]
no I; PU I/O 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
4
[7]
no I; PU I/O PIO0_28 — General purpose digital input/output pin
(high-current output driver).
O ACMPC1_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
5
[7]
no I; PU I/O 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 26
[5]
no I; PU I 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 27
[5]
no I; PU I 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 28
[5]
no I; PU O 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.
Table 3. LPC12D27 LQFP100 pin description
…continued
Symbol Pin Start
logic
input
Reset
state
[1]
Type Description