The MB90880 series is a general-purpose 16-bit microcontroller, designed by Fujitsu, for process control of devices such as consumer appliances, which require high-speed real-time processing capabilities. The instruction set of the F2MC-16LX CPU core retains the same AT architecture as the F2MC*1 family, with further refinements including high-level language instructions, an expanded addressing mode, enhanced multiplierdivider instructions and bit processing. In addition, a 32-bit accumulator is built in to enable long word processing. As its peripheral resources, the MB90880 series has a 16-bit PPG, multi-function serial interface (software switch over enabled for SIO, UART and I2C*2) , 10-bit A/D converter, 16-bit I/O timer, 8/16-bit up-down counter, base timer (software switch over enabled for 16-bit reload timer, PWC timer, PPG timer and PWM timer) , DTP / external interrupt and chip select pins. *1 : F2MC is the abbreviation of FUJITSU Flexible Microcontroller. *2 : Purchase of Fujitsu I2C components conveys a license under the Philips I2C Patent Rights to use, these components in an I2C system provided that the system conforms to the I2C Standard Specification as defined by Philips.