Datasheet

UM10398 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2014. All rights reserved.
User manual Rev. 12.3 — 10 June 2014 155 of 547
NXP Semiconductors
UM10398
Chapter 9: LPC111x/LPC11Cxx Pin configuration (LPC1100, LPC1100C,
Table 162. LPC1112FHN24 Pin description table (HVQFN24 package)
Symbol HVQFN
pin
Start
logic
input
Type Reset
state
[1]
Description
RESET
/PIO0_0 1
[1]
yes I I; PU RESET — External reset input with 20 ns glitch filter. 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 pin if an external RESET function is not needed.
I/O - PIO0_0 — General purpose digital input/output pin with 10 ns
glitch filter.
PIO0_1/CLKOUT/
CT32B0_MAT2
2
[3]
yes I/O I; PU PIO0_1 — General purpose digital input/output pin. A LOW
level on this pin during reset starts the ISP command handler.
O-CLKOUT — Clockout pin.
O-CT32B0_MAT2 — Match output 2 for 32-bit timer 0.
PIO0_2/SSEL0/
CT16B0_CAP0
7
[3]
yes I/O I; PU PIO0_2 — General purpose digital input/output pin.
I/O - SSEL0 — Slave Select for SPI0.
I-CT16B0_CAP0 — Capture input 0 for 16-bit timer 0.
PIO0_4/SCL 8
[4]
yes I/O I; IA PIO0_4 — General purpose digital input/output pin
(open-drain).
I/O - SCL — I
2
C-bus, open-drain clock input/output. High-current
sink only if I
2
C Fast-mode Plus is selected in the I/O
configuration register.
PIO0_5/SDA 9
[4]
yes I/O I; IA PIO0_5 — General purpose digital input/output pin
(open-drain).
I/O - SDA — I
2
C-bus, open-drain data input/output. High-current
sink only if I
2
C Fast-mode Plus is selected in the I/O
configuration register.
PIO0_6/SCK0 10
[3]
yes I/O I; PU PIO0_6 — General purpose digital input/output pin.
I/O - SCK0 — Serial clock for SPI0.
PIO0_7/CTS
11
[3]
yes I/O I; PU PIO0_7 — General purpose digital input/output pin
(high-current output driver).
I-CTS
— Clear To Send input for UART.
PIO0_8/MISO0/
CT16B0_MAT0
12
[3]
yes I/O I; PU PIO0_8 — General purpose digital input/output pin.
I/O - MISO0 — Master In Slave Out for SPI0.
O-CT16B0_MAT0 — Match output 0 for 16-bit timer 0.
PIO0_9/MOSI0/
CT16B0_MAT1
13
[3]
yes I/O I; PU PIO0_9 — General purpose digital input/output pin.
I/O - MOSI0 — Master Out Slave In for SPI0.
O-CT16B0_MAT1 — Match output 1 for 16-bit timer 0.
SWCLK/PIO0_10/
SCK0/
CT16B0_MAT2
14
[3]
yes I I; PU SWCLK — Serial wire clock.
I/O - PIO0_10 — General purpose digital input/output pin.
I/O - SCK0 — Serial clock for SPI0.
O-CT16B0_MAT2 — Match output 2 for 16-bit timer 0.