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