Pin Configuration 120 May 03, 2004
Philips Semiconductors Preliminary User Manual
LPC2119/2129/2194/2292/2294ARM-based Microcontroller
7O
P1.19 TRACEPKT3Trace Packet, bit 3. Standard I/O port with internal pull-up.
102
O P1.20 TRACESYNCTrace Synchronization. Standard I/O port with internal pull-up.
LOW on this pin while RESET is LOW enables pins P1.25:16 to
operate as a Trace port after reset.
Important: LOW on pin P1.20 while RESET
is LOW enables pins P1.25:16
to operate as a Trace port after reset.
95 O
P1.21 PIPESTAT0 Pipeline Status, bit 0. Standard I/O port with internal pull-up.
86 O
P1.22 PIPESTAT1 Pipeline Status, bit 1. Standard I/O port with internal pull-up.
82 O
P1.23 PIPESTAT2 Pipeline Status, bit 2. Standard I/O port with internal pull-up.
70 O
P1.24 TRACECLK Trace Clock. Standard I/O port with internal pull-up.
60 I
P1.25 EXTIN0 External Trigger Input. Standard I/O with internal pull-up.
52
I/O P1.26 RTCK Returned Test Clock output. Extra signal added to the JTAG
port. Assists debugger synchronization when processor
frequency varies. Bi-directional pin with internal pullup. LOW on
this pin while RESET
is LOW enables pins P1.31:26 to operate
as a Debug port after reset.
Important: LOW on pin P1.26 while RESET
is LOW enables pins P1.31:26
to operate as a Debug port after reset.
144 O
P1.27 TDO Test Data out for JTAG interface.
140 I
P1.28 TDI Test Data in for JTAG interface.
126 I
P1.29 TCK Test Clock for JTAG interface.
113 I
P1.30 TMS Test Mode Select for JTAG interface.
43 I
P1.31 TRST
Test Reset for JTAG interface.
P2.0
to
P2.31
98,105,106,10
8,109,114-
118,120,124,1
25,127,129-
134,136,137,1,
10-13,16-20
I/O
Port 2: Port 2 is a 32-bit bi-directional I/O port with individual direction controls for each bit.
The operation of port 2 pins depends upon the pin function selected via the Pin Connect
Block.
Note: All Port 2 pins excluding those that can be used as A/D inputs (P2.30 and P2.31)
are functionally 5V tolerant. Port 2 pin configured to perform an input function will use built-
in pull-up resistor to set the default input level to high. If the A/D converter is not used at all,
pins associated with A/D inputs can be used as 5V tolerant digital IO pins. See "A/D
Converter" chapter for A/D input pin voltage considerations.
Table 56: Pin description for LPC2292/2294
Pin
Name
LQFP144
Pin #
Type Description
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