Philips Semiconductors

LPC2194

Single-chip 16/32-bit microcontrollers

Preliminary data

Rev. 01 — 06 February 2004

18 of 33

9397 750 12757

© Koninklijke Philips Electronics N.V. 2004. All rights reserved.

6.14.1

Features

serial data on the bus.

via one serial bus.

and resume serial transfer.

6.15 SPI serial I/O controller

The LPC2194 contains two SPIs. The SPI is a full duplex serial interface, designed to

be able 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 a byte of data to the slave,

and the slave always sends a byte of data to the master.

6.15.1

Features

6.16 General purpose timers

The Timer is designed to count cycles of the peripheral clock (PCLK) 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.

6.16.1

Features