OM13008,598 NXP Semiconductors, OM13008,598 Datasheet - Page 121

• Manufacturer Part Number: OM13008,598
• Description: BOARD LPC XPRESSO LPC122X
• Manufacturer: NXP Semiconductors
• Series: LPCXpressor

Specifications of OM13008,598

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 568-6642; OM13008

7.1 General description
7.2 Pin description
Table 118. LPC122x pin description
UM10441
User manual
Symbol
PIO0_0 to PIO0_31
PIO0_0/RTS0
PIO0_1/RXD0/
CT32B0_CAP0/
CT32B0_MAT0
PIO0_2/TXD0/
CT32B0_CAP1/
CT32B0_MAT1
PIO0_3/DTR0/
CT32B0_CAP2/
CT32B0_MAT2
PIO0_4/DSR0/
CT32B0_CAP3/
CT32B0_MAT3
PIO0_5/DCD0
All pins except the supply pins can have more than one function as shown in
The pin function is selected through the pin’s IOCON register in the IOCONFIG block. The
multiplexed functions include the counter/timer inputs and outputs, the UART receive,
transmit, and control functions, and the serial wire debug functions (see
For each pin, the default function is listed first together with the pin’s reset state.
15 19
16 20
17 21
18 22
19 23
20 24
UM10441
Chapter 7: LPC122x Pin configuration
Rev. 1.1 — 10 March 2011
[2]
[2]
[2]
[2]
[2]
[2]
Start
logic
input
yes
yes
yes
yes
yes
yes
All information provided in this document is subject to legal disclaimers.
Type Reset
I/O
I/O
O
I/O
I
I
O
I/O
O
I
O
I/O
O
I
O
I/O
I
I
O
I/O
I
Rev. 1.1 — 10 March 2011
state
[1]
I; PU
-
I; PU
-
-
-
I; PU
-
-
-
I; PU
-
-
-
I; PU
-
-
-
I; PU
-
Description
Port 0 — Port 0 is a 32-bit I/O port with individual direction and
function controls for each bit. The operation of port 0 pins
depends on the function selected through the IOCONFIG
register block.
PIO0_0 — General purpose digital input/output pin.
RTS0 — Request To Send output for UART0.
PIO0_1 — General purpose digital input/output pin.
RXD0 — Receiver input for UART0.
CT32B0_CAP0 — Capture input, channel 0 for 32-bit timer 0.
CT32B0_MAT0 — Match output, channel 0 for 32-bit timer 0.
PIO0_2 — General purpose digital input/output pin.
TXD0 — Transmitter output for UART0.
CT32B0_CAP1 — Capture input, channel 1 for 32-bit timer 0.
CT32B0_MAT1 — Match output, channel 1 for 32-bit timer 0.
PIO0_3 — General purpose digital input/output pin.
DTR0 — Data Terminal Ready output for UART0.
CT32B0_CAP2 — Capture input, channel 2 for 32-bit timer 0.
CT32B0_MAT2 — Match output, channel 2 for 32-bit timer 0.
PIO0_4 — General purpose digital input/output pin.
DSR0 — Data Set Ready input for UART0.
CT32B0_CAP3 — Capture input, channel 3 for 32-bit timer 0.
CT32B0_MAT3 — Match output, channel 3 for 32-bit timer 0.
PIO0_5 — General purpose digital input/output pin.
DCD0 — Data Carrier Detect input for UART0.
© NXP B.V. 2011. All rights reserved.
Table
User manual
Table
119).
121 of 442
118.