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General description

The UART are based on a 16/32-bit ARM7TDMI-S CPU with real-time emulation and embedded trace support, together with 128 kB of embedded high speed flash memory. A 128-bit wide memory interface and a unique accelerator architecture enable 32-bit code execution at maximum clock rate. For critical code size applications, the alternative 16-bit Thumb mode reduces code by more than 30 % with minimal performance penalty.

Features

New features implemented in LPC2104/2105/2106/01 devices

■ Fast GPIO port enables port pin toggling up to 3.5 times faster than the original device and also allows for a port pin to be read at any time regardless of its function.

■ UART 0/1 include fractional baud rate generator, autobauding capabilities, and handshake flow-control fully implemented in hardware.

■ Buffered SSP serial controller supporting SPI, 4-wire SSI, and Microwire formats.

■ SPI programmable data length and master mode enhancement.

■ Diversified Code Read Protection (CRP) enables different security levels to be implemented.

■ General purpose timers can operate as external event counters.

Key common features

■ 16/32-bit ARM7TDMI-S processor.

■ 16/32/64 kB on-chip static RAM.

■ 128 kB on-chip flash program memory. 128-bit-wide interface/accelerator enables high speed 60 MHz operation.

■ In-System Programming (ISP) and In-Application Programming (IAP) via on-chip bootloader software. Flash programming takes 1 ms per 512 B line. Single sector or full chip erase takes 400 ms.

■ Vectored Interrupt Controller with configurable priorities and vector addresses.

■ EmbeddedICE-RT interface enables breakpoints and watch points. Interrupt service routines can continue to execute whilst the foreground task is debugged with the on-chip RealMonitor software.

■ Embedded Trace Macrocell enables non-intrusive high speed real-time tracing of instruction execution.

■ Multiple serial interfaces including two UARTs (16C550), Fast I2C-bus (400 kbit/s), and SPI.

■ Two 32-bit timers (7 capture/compare channels), PWM unit (6 outputs), Real Time Clock and Watchdog.

■ Up to thirty-two 5 V tolerant general purpose I/O pins in a tiny LQFP48 (7 mm × 7 mm) package.

■ 60 MHz maximum CPU clock available from programmable on-chip Phase-Locked Loop with settling time of 100 μs.

■ The on-chip crystal oscillator should have an operating range of 1 MHz to 25 MHz.

■ Two low power modes, Idle and Power-down.

■ Processor wake-up from Power-down mode via external interrupt.

■ Individual enable/disable of peripheral functions for power optimization.

■ Dual power supply:

◆ CPU operating voltage range of 1.65 V to 1.95 V (1.8 V ± 8.3 %).

◆ I/O power supply range of 3.0 V to 3.6 V (3.3 V ± 10 %) with 5 V tolerant I/O pads.