LPC2292_07 Datasheet, PDF (20/54 Pages) NXP Semiconductors – 16/32-bit ARM microcontrollers; 256 kB ISP/IAP flash with CAN, 10-bit ADC and external memory interface

NXP Semiconductors
LPC2292/LPC2294
16/32-bit ARM microcontrollers with external memory interface
6.10 CAN controllers and acceptance filter
The LPC2292/2294 each contain two/four CAN controllers. The CAN is a serial
communications protocol which efficiently supports distributed real-time control with a
very high level of security. Its domain of application ranges from high-speed networks to
low cost multiplex wiring.
6.10.1 Features
• Data rates up to 1 Mbit/s on each bus.
• 32-bit register and RAM access.
• Compatible with CAN specification 2.0B, ISO 11898-1.
• Global Acceptance Filter recognizes 11-bit and 29-bit RX identifiers for all CAN buses.
• Acceptance Filter can provide FullCAN-style automatic reception for selected
Standard identifiers.
6.11 UARTs
The LPC2292/2294 each contain two UARTs. In addition to standard transmit and receive
data lines, the UART1 also provides a full modem control handshake interface.
6.11.1 Features
• 16 B Receive and Transmit FIFOs.
• Register locations conform to 16C550 industry standard.
• Receiver FIFO trigger points at 1 B, 4 B, 8 B, and 14 B
• 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).
6.11.2 UART features available in LPC2292/2294/01 only
Compared to previous LPC2000 microcontrollers, UARTs in LPC2292/2294/01 introduce
a fractional baud rate generator for both UARTs, enabling these microcontrollers to
achieve standard baud rates such as 115200 Bd with any crystal frequency above 2 MHz.
In addition, auto-CTS/RTS flow-control functions are fully implemented in hardware.
• Fractional baud rate generator enables standard baud rates such as 115200 Bd to be
achieved with any crystal frequency above 2 MHz.
• Auto-bauding.
• Auto-CTS/RTS flow-control fully implemented in hardware.
6.12 I²C-bus serial I/O controller
The I²C-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., an LCD driver or a transmitter with the
capability to both receive and send information (such as memory). Transmitters and/or
LPC2292_2294_6
Product data sheet
Rev. 06 — 10 December 2007
© NXP B.V. 2007. All rights reserved.
20 of 54