The FUJITSU MICROELECTRONICS MB90420G/425G Series is a 16-bit general purpose high-capacity microcontroller designed for vehicle meter control applications etc. The instruction set retains the same AT architecture as the FUJITSU MICROELECTRONICS original F2MC-8L and F2MC-16L series, with further refinements including high-level language instructions, expanded addressing mode, enhanced (signed) multipler-divider computation and bit processing. In addition, a 32-bit accumulator is built in to enable long word processing.