DESCRIPTION

The μPD78322 is a 16-/8-bit single-chip microcontroller that incorporates a high-performance 16-bit CPU. The μPD78322 is one of 78K/III series.

A realtime pulse unit for realtime pulse control required in motor control, an A/D converter, a ROM, and a RAM have been integrated into one chip.

The μPD78322 incorporates 16K-byte mask ROM and 640-byte RAM.

The μPD78320 is provided as a ROM-less product of the μPD78322. Also, the μPD78P322 is provided as an on-chip PROM product.

FEATURES

? Internal 16-bit architecture and external 8-bit data bus

? High-speed processing by pipeline control and instruction prefetch

? Minimum instruction execution time: 250 ns (with 16 MHz external clock in operation)

? Instruction set suitable for control operations (μPD78312 upward compatible)

? Multiplication/division instruction (16 bits × 16 bits, 32 bits ÷ 16 bits)

? Bit manipulation instruction

? String instruction, etc.

? On-chip high-function interrupt controller

? 3-level priority specifiable

? 3-type interrupt servicing mode selectable

(Vectored interrupt function, context switching function, and macro service function)

? Variety of peripheral hardware

? Realtime pulse unit

? 8-channel, 10-bit A/D converter

? Watchdog timer

? Powerful serial interface (with an on-chip dedicated baud rate generator)

? UART ····· 1 channel

? SBI (NEC Standard Serial Bus Interface)

? 3-wire serial I/O ····· 1 channel

APPLICATIONS

? Motor control devices