DATA SHEET
MOS INTEGRATED CIRCUIT
µ
PD78320,78322
16/8-BIT SINGLE-CHIP MICROCONTROLLER
DESCRIPTION
The
µ
PD78322 is a 16-/8-bit single-chip microcontroller that incorporates a high-performance 16-bit CPU. The
µ
PD78322
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
µ
PD78322 incorporates 16K-byte mask ROM and 640-byte RAM.
The
µ
PD78320 is provided as a ROM-less product of the
µ
PD78322. Also, the
µ
PD78P322 is provided as an on-chip
PROM product.
Detailed information about product features and specifications can be found in the following document.
µ
PD78322 User’s Manual : IEU-1248
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 (
µ
PD78312 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
Unless there are any particular notices, the
µ
PD78322 is described as the representative model in this document.
The information in this document is subject to change without notice.
Document No. U10455EJ7V0DS00 (7th edition)
(Previous No. IC-2354)
Date Published November 1995 P
Printed in Japan
The mark
shows major revised points.
©
1989