LPC2131_32_34_36_38 NXP Semiconductors, LPC2131_32_34_36_38 Datasheet - Page 11

• Manufacturer Part Number: LPC2131_32_34_36_38
• Description: The LPC2131/32/34/36/38 microcontrollers are based on a 16/32-bit ARM7TDMI-S CPUwith real-time emulation and embedded trace support, that combine the microcontrollerwith 32 kB, 64 kB, 128 kB, 256 kB and 512 kB of embedded high-speed flash memory
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 3.
LPC2131_32_34_36_38
Product data sheet
Symbol
P0.23
P0.25/AD0.4/
AOUT
P0.26/AD0.5
P0.27/AD0.0/
CAP0.1/MAT0.1
P0.28/AD0.1/
CAP0.2/MAT0.2
P0.29/AD0.2/
CAP0.3/MAT0.3
P0.30/AD0.3/
EINT3/CAP0.0
P0.31
P1.0 to P1.31
P1.16/
TRACEPKT0
P1.17/
TRACEPKT1
P1.18/
TRACEPKT2
P1.19/
TRACEPKT3
P1.20/
TRACESYNC
P1.21/
PIPESTAT0
P1.22/
PIPESTAT1
P1.23/
PIPESTAT2
P1.24/
TRACECLK
P1.25/EXTIN0
Pin description
Pin
58
9
10
11
13
14
15
17
16
12
8
4
48
44
40
36
32
28
[5]
[6]
[6]
[4]
[1]
[4]
[4]
[4]
[4]
[6]
[6]
[6]
[6]
[6]
[6]
[6]
[6]
[6]
Type
I/O
I
O
I
I
I
O
I
I
O
I
I
O
I
I
I
O
I/O
O
O
O
O
O
O
O
O
O
I
…continued
Description
General purpose digital input/output pin.
AD0.4 — ADC 0, input 4. This analog input is always connected to its pin.
AOUT — DAC output. Not available in LPC2131.
AD0.5 — ADC 0, input 5. This analog input is always connected to its pin.
AD0.0 — ADC 0, input 0. This analog input is always connected to its pin.
CAP0.1 — Capture input for Timer 0, channel 1.
MAT0.1 — Match output for Timer 0, channel 1.
AD0.1 — ADC 0, input 1. This analog input is always connected to its pin.
CAP0.2 — Capture input for Timer 0, channel 2.
MAT0.2 — Match output for Timer 0, channel 2.
AD0.2 — ADC 0, input 2. This analog input is always connected to its pin.
CAP0.3 — Capture input for Timer 0, channel 3.
MAT0.3 — Match output for Timer 0, channel 3.
AD0.3 — ADC 0, input 3. This analog input is always connected to its pin.
EINT3 — External interrupt 3 input.
CAP0.0 — Capture input for Timer 0, channel 0.
General purpose digital output only pin.
Important: This pin MUST NOT be externally pulled LOW when RESET pin is LOW or
the JTAG port will be disabled.
Port 1: Port 1 is a 32-bit bidirectional I/O port with individual direction controls for each
bit. The operation of port 1 pins depends upon the pin function selected via the pin
connect block. Pins 0 through 15 of port 1 are not available.
TRACEPKT0 — Trace Packet, bit 0. Standard I/O port with internal pull-up.
TRACEPKT1 — Trace Packet, bit 1. Standard I/O port with internal pull-up.
TRACEPKT2 — Trace Packet, bit 2. Standard I/O port with internal pull-up.
TRACEPKT3 — Trace Packet, bit 3. Standard I/O port with internal pull-up.
TRACESYNC — Trace Synchronization. Standard I/O port with internal pull-up. LOW
on TRACESYNC while RESET is LOW enables pins P1.25:16 to operate as Trace port
after reset.
PIPESTAT0 — Pipeline Status, bit 0. Standard I/O port with internal pull-up.
PIPESTAT1 — Pipeline Status, bit 1. Standard I/O port with internal pull-up.
PIPESTAT2 — Pipeline Status, bit 2. Standard I/O port with internal pull-up.
TRACECLK — Trace Clock. Standard I/O port with internal pull-up.
EXTIN0 — External Trigger Input. Standard I/O with internal pull-up.
All information provided in this document is subject to legal disclaimers.
Rev. 5.1 — 29 July 2011
LPC2131/32/34/36/38
Single-chip 16/32-bit microcontrollers
© NXP B.V. 2011. All rights reserved.
11 of 45