GENERAL DESCRIPTION
An external memory controller supports direct connection to memory and peripheral devices for adding even more functionality. FEATURES
Operating Voltage 2.7 to 3.6V Operating Frequency 25MHz maximum(3.0 to 3.6V) On-chip memory -ROM: 128 kilobytes -RAM: 4 kilobytes I/O Function I/O ports: 8 bits x 9, I/O directions are specified at the bit level Timer -Flexible timer (16-bit multi-function timer with six channels) Choice of operating modes: auto-reload timer, compare output, PWM and capture -Time base counter with WDT function Serial Port -One asynchronous serial port (UART) with baud rate generator -Two clock synchronous serial port A-to-D Converter -8-bit resolution A-to-D converter with eight analog input ports Interrupt -Support for 28 interrupt sources: 9 external and 19 internal Controller -Choice of eight priority levels for each source External Memory -Direct connection to ROM, SRAM, DRAM and peripheral devices Controller -Support for four banks: two for ROM,...
