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LPC2141 Datasheet(PDF) 10 Page - NXP Semiconductors

Part # LPC2141
Description  Single-chip 16-bit/32-bit microcontrollers; up to 512 kB flash with ISP/IAP, USB 2.0 full-speed device, 10-bit ADC and DAC
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

LPC2141 Datasheet(HTML) 10 Page - NXP Semiconductors

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LPC2141_42_44_46_48_4
© NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 04 — 17 November 2008
10 of 40
NXP Semiconductors
LPC2141/42/44/46/48
Single-chip 16-bit/32-bit microcontrollers
P0.31/UP_LED/
CONNECT
17[6]
O
P0.31 — General purpose output only digital pin (GPO).
O
UP_LED — USB GoodLink LED indicator. It is LOW when device is
configured (non-control endpoints enabled). It is HIGH when the device is not
configured or during global suspend.
O
CONNECT — Signal used to switch an external 1.5 k
Ω resistor under the
software control. Used with the SoftConnect USB feature.
Important: This is an digital output only pin. This pin MUST NOT be
externally pulled LOW when RESET pin is LOW or the JTAG port will be
disabled.
P1.0 to P1.31
I/O
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.
P1.16/
TRACEPKT0
16[6]
I/O
P1.16 — General purpose input/output digital pin (GPIO). Standard I/O port
with internal pull-up.
O
TRACEPKT0 — Trace Packet, bit 0.
P1.17/
TRACEPKT1
12[6]
I/O
P1.17 — General purpose input/output digital pin (GPIO). Standard I/O port
with internal pull-up.
O
TRACEPKT1 — Trace Packet, bit 1.
P1.18/
TRACEPKT2
8[6]
I/O
P1.18 — General purpose input/output digital pin (GPIO). Standard I/O port
with internal pull-up.
O
TRACEPKT2 — Trace Packet, bit 2.
P1.19/
TRACEPKT3
4[6]
I/O
P1.19 — General purpose input/output digital pin (GPIO). Standard I/O port
with internal pull-up.
O
TRACEPKT3 — Trace Packet, bit 3.
P1.20/
TRACESYNC
48[6]
I/O
P1.20 — General purpose input/output digital pin (GPIO). Standard I/O port
with internal pull-up.
O
TRACESYNC — Trace Synchronization.
Note: LOW on this pin while RESET is LOW enables pins P1.25:16 to
operate as Trace port after reset.
P1.21/
PIPESTAT0
44[6]
I/O
P1.21 — General purpose input/output digital pin (GPIO). Standard I/O port
with internal pull-up.
O
PIPESTAT0 — Pipeline Status, bit 0.
P1.22/
PIPESTAT1
40[6]
I/O
P1.22 — General purpose input/output digital pin (GPIO). Standard I/O port
with internal pull-up.
O
PIPESTAT1 — Pipeline Status, bit 1.
P1.23/
PIPESTAT2
36[6]
I/O
P1.23 — General purpose input/output digital pin (GPIO). Standard I/O port
with internal pull-up.
O
PIPESTAT2 — Pipeline Status, bit 2.
P1.24/
TRACECLK
32[6]
I/O
P1.24 — General purpose input/output digital pin (GPIO). Standard I/O port
with internal pull-up.
O
TRACECLK — Trace Clock.
P1.25/EXTIN0
28[6]
I/O
P1.25 — General purpose input/output digital pin (GPIO). Standard I/O port
with internal pull-up.
I
EXTIN0 — External Trigger Input.
Table 3.
Pin description …continued
Symbol
Pin
Type
Description


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