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LPC2103FBD48,151

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LPC2101_02_03_4 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 04 — 2 June 2009 13 of 37
NXP Semiconductors
LPC2101/02/03
Single-chip 16-bit/32-bit microcontrollers
6.7 Fast general purpose parallel I/O
Device pins that are not connected to a specific peripheral function are controlled by the
GPIO registers. Pins may be dynamically configured as inputs or outputs. Separate
registers allow setting or clearing any number of outputs simultaneously. The value of the
output register may be read back, as well as the current state of the port pins.
LPC2101/02/03 introduce accelerated GPIO functions over prior LPC2000 devices:
• GPIO registers are relocated to the ARM local bus for the fastest possible I/O timing.
• Mask registers allow treating sets of port bits as a group, leaving other bits
unchanged.
• All GPIO registers are byte addressable.
• Entire port value can be written in one instruction.
6.7.1 Features
• Bit-level set and clear registers allow a single instruction set or clear of any number of
bits in one port.
• Direction control of individual bits.
• Separate control of output set and clear.
• All I/O default to inputs after reset.
6.8 10-bit ADC
The LPC2101/02/03 contain one ADC. It is a single 10-bit successive approximation ADC
with eight channels.
6.8.1 Features
• Measurement range of 0 V to 3.3 V.
• Each converter capable of performing more than 400,000 10-bit samples per second.
• Burst conversion mode for single or multiple inputs.
• Optional conversion on transition on input pin or Timer Match signal.
• Every analog input has a dedicated result register to reduce interrupt overhead.
6.9 UARTs
The LPC2101/02/03 each contain two UARTs. In addition to standard transmit and
receive data lines, UART1 also provides a full modem control handshake interface.
Compared to previous LPC2000 microcontrollers, UARTs in LPC2101/02/03 include a
fractional baud rate generator for both UARTs. Standard baud rates such as 115200 can
be achieved with any crystal frequency above 2 MHz.
6.9.1 Features
• 16 byte Receive and Transmit FIFOs.
• Register locations conform to 16C550 industry standard.
• Receiver FIFO trigger points at 1, 4, 8, and 14 bytes
LPC2101_02_03_4 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 04 — 2 June 2009 14 of 37
NXP Semiconductors
LPC2101/02/03
Single-chip 16-bit/32-bit microcontrollers
• Built-in fractional baud rate generator covering wide range of baud rates without a
need for external crystals of particular values.
• Transmission FIFO control enables implementation of software (XON/XOFF) flow
control on both UARTs.
• UART1 is equipped with standard modem interface signals. This module also
provides full support for hardware flow control (auto-CTS/RTS).
6.10 I
2
C-bus serial I/O controllers
The LPC2101/02/03 each contain two I
2
C-bus controllers.
The I
2
C-bus is bidirectional, for inter-IC control using only two wires: a Serial Clock Line
(SCL), and a Serial Data Line (SDA). Each device is recognized by a unique address and
can operate as either a receiver-only device (e.g., LCD driver) or a transmitter with the
capability to both receive and send information such as serial memory. Transmitters
and/or receivers can operate in either master or slave mode, depending on whether the
chip has to initiate a data transfer or is only addressed. The I
2
C-bus is a multi-master bus,
it can be controlled by more than one bus master connected to it.
The I
2
C-bus implemented in LPC2101/02/03 supports bit rates up to 400 kbit/s (Fast
I
2
C-bus).
6.10.1 Features
• Compliant with standard I
2
C-bus interface.
• Easy to configure as Master, Slave, or Master/Slave.
• Programmable clocks allow versatile rate control.
• Bidirectional data transfer between masters and slaves.
• Multi-master bus (no central master).
• Arbitration between simultaneously transmitting masters without corruption of serial
data on the bus.
• Serial clock synchronization allows devices with different bit rates to communicate via
one serial bus.
• Serial clock synchronization can be used as a handshake mechanism to suspend and
resume serial transfer.
• The I
2
C-bus can also be used for test and diagnostic purposes.
6.11 SPI serial I/O controller
The LPC2101/02/03 each contain one SPI controller. The SPI is a full duplex serial
interface, designed to handle multiple masters and slaves connected to a given bus. Only
a single master and a single slave can communicate on the interface during a given data
transfer. During a data transfer the master always sends 8 bits to 16 bits of data to the
slave, and the slave always sends 8 bits to 16 bits of data to the master.
6.11.1 Features
• Compliant with SPI specification.
• Synchronous, Serial, Full Duplex, Communication.
LPC2101_02_03_4 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 04 — 2 June 2009 15 of 37
NXP Semiconductors
LPC2101/02/03
Single-chip 16-bit/32-bit microcontrollers
• Combined SPI master and slave.
• Maximum data bit rate of one eighth of the input clock rate.
6.12 SSP serial I/O controller
The LPC2101/02/03 each contain one SSP. The SSP controller is capable of operation on
a SPI, 4-wire SSI, or Microwire bus. It can interact with multiple masters and slaves on the
bus. However, only a single master and a single slave can communicate on the bus during
a given data transfer. The SSP supports full duplex transfers, with data frames of 4 bits to
16 bits flowing from the master to the slave and from the slave to the master. Often only
one of these data streams carries meaningful data.
6.12.1 Features
• Compatible with Motorola SPI, 4-wire Texas Instruments SSI, and National
Semiconductor’s Microwire buses
• Synchronous serial communication
• Master or slave operation
• 8-frame FIFOs for both transmit and receive
• Four bits to 16 bits per frame
6.13 General purpose 32-bit timers/external event counters
The Timer/Counter is designed to count cycles of the Peripheral Clock (PCLK) or an
externally supplied clock and optionally generate interrupts or perform other actions at
specified timer values, based on four match registers. It also includes four capture inputs
to trap the timer value when an input signal transitions, optionally generating an interrupt.
Multiple pins can be selected to perform a single capture or match function, providing an
application with ‘or’ and ‘and’, as well as ‘broadcast’ functions among them.
The LPC2101/02/03 can count external events on one of the capture inputs if the
minimum external pulse is equal or longer than a period of the PCLK. In this configuration,
unused capture lines can be selected as regular timer capture inputs or used as external
interrupts.
6.13.1 Features
• A 32-bit timer/counter with a programmable 32-bit prescaler.
• External event counter or timer operation.
• Four 32-bit capture channels per timer/counter that can take a snapshot of the timer
value when an input signal transitions. A capture event may also optionally generate
an interrupt.
• Four 32-bit match registers that allow:
– Continuous operation with optional interrupt generation on match.
– Stop timer on match with optional interrupt generation.
– Reset timer on match with optional interrupt generation.
• Four external outputs per timer/counter corresponding to match registers, with the
following capabilities:
– Set LOW on match.
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LPC2103FBD48,151

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NXP Semiconductors
Description:
ARM Microcontrollers - MCU ARM7 32KF/8KR/10BADC
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