Datasheet

LPC15XX All information provided in this document is subject to legal disclaimers. © NXP B.V. 2014. All rights reserved.
Product data sheet Rev. 1 — 19 February 2014 14 of 99
NXP Semiconductors
LPC15xx
32-bit ARM Cortex-M3 microcontroller
PIO0_18/
SCT0_OUT5
13 17 26
[5]
I; PU IO PIO0_18 — General purpose port 0 input/output 18.
On the LQFP64 package, this pin is assigned to U0_TXD
in ISP USART mode.
On the LQFP48 package, this pin is assigned to
CAN0_TD in ISP C_CAN mode.
O SCT0_OUT5 — SCTimer0/PWM output 5.
SWCLK/
PIO0_19/TCK
29 40 63
[5]
I; PU I SWCLK — Serial Wire Clock. SWCLK is enabled by
default on this pin.
In boundary scan mode: TCK (Test Clock).
IO PIO0_19 — General purpose port 0 input/output 19.
SWDIO/
PIO0_20/SCT1_OUT6/
TMS
33 44 69
[5]
I; PU I/O SWDIO — Serial Wire Debug I/O. SWDIO is enabled by
default on this pin.
In boundary scan mode: TMS (Test Mode Select).
I/O PIO0_20 — General purpose port 0 input/output 20.
O SCT1_OUT6 — SCTimer1/PWM output 6.
RESET
/PIO0_21 34 45 71
[6]
I; PU I RESET — External reset input: A LOW-going pulse as
short as 50 ns 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.
In deep power-down mode, this pin must be pulled HIGH
externally. The RESET
pin can be left unconnected or be
used as a GPIO or for any movable function if an external
RESET
function is not needed and the Deep power-down
mode is not used.
I/O PIO0_21 — General purpose port 0 input/output 21.
PIO0_22/I2C0_SCL 37 49 78
[7]
IA IO PIO0_22 — General purpose port 0 input/output 22.
I/O I2C0_SCL — I
2
C-bus clock input/output. High-current sink
if I
2
C Fast-mode Plus is selected in the I/O configuration
register.
PIO0_23/I2C0_SDA 38 50 79
[7]
IA IO PIO0_23 — General purpose port 0 input/output 23.
I/O I2C0_SDA — I
2
C-bus data input/output. High-current sink
if I
2
C Fast-mode Plus is selected in the I/O configuration
register.
PIO0_24/SCT0_OUT6 43 58 90
[8]
I; PU IO PIO0_24 — General purpose port 0 input/output 24.
High-current output driver.
O SCT0_OUT6 — SCTimer0/PWM output 6.
PIO0_25/ACMP0_I4 44 60 93
[2]
I; PU IO PIO0_25 — General purpose port 0 input/output 25.
A ACMP0_I4 — Analog comparator 0 input 4.
PIO0_26/ACMP0_I3/
SCT3_OUT3
45 61 95
[2]
I; PU IO PIO0_26 — General purpose port 0 input/output 26.
A ACMP0_I3 — Analog comparator 0 input 3.
O SCT3_OUT3 — SCTimer3/PWM output 3.
PIO0_27/ACMP_I1 46 62 97
[2]
I; PU IO PIO0_27 — General purpose port 0 input/output 27.
A ACMP_I1 — Analog comparator common input 1.
Table 3. Pin description with fixed-pin functions
Symbol
LQFP48 LQFP64 LQFP100
Reset
state
[1]
Type Description