
2
CHAPTER 1 OVERVIEW
1.1
Features
The MB90560/565 series of general-purpose 16-bit microcontrollers was developed for
applications that require high-speed real-time processing in a variety of industrial
systems, OA equipment, and process control systems. A specific feature of the series
is a built-in multifunctional timer that can easily output desired waveforms.
The instruction set inherits the AT architecture of the original Fujitsu F2MC-8L and
F2MC-16L, and has additional instructions supporting high-level languages. In
addition, it has an extended addressing mode, enhanced multiply/divide instructions
(signed), and reinforced bit manipulation instructions. The chip also has a 32-bit
accumulator that enables long-word data processing.
s Features of the MB90560/565 Series
r Clock
Built-in oscillator circuit and PLL clock multiplier circuit
Source oscillation; Main clock that divides the source oscillation by two (0.5 to 8 MHz when
the source oscillation is 1 to 16 MHz); and PLL clock that multiplies the source oscillation by
1 to 4 (4 to 16 MHz when the source oscillation is 4 MHz), which can be configured from the
machine clock
Minimum instruction execution time: 62.5 ns (when the source oscillation is 4 MHz, PLL
clock is multiplied by 4, and Vcc is 5 V)
r Maximum memory address space: 16M bytes
Internal 24-bit addressing
Bank addressing
r Optimum instruction set for controller applications
Many data types (bit, byte, word, and long word)
As many as 23 addressing modes
Enhanced high-precision arithmetic operation by a 32-bit accumulator
Enhanced signed multiply/divide instructions and RETI instruction function
r Instruction set supporting high-level language (C) and multi-tasking
System stack pointer
Instruction set symmetry and barrel shift instructions.
r Program patch function (Two-address pointer)