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CHAPTER 1 OVERVIEW
MB90560 series
1.1
Features
The MB90560 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 FMC-8L and
FMC-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 to be processed.
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Features of the MB90560 Series
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Clock
Built-in PLL clock multiplying circuit
Selectable operating clock (PLL clock): The source oscillation can be divided by two or
multiplied by 1 to 4 (4 to 16 MHz when the source oscillation is 4 MHz).
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)
G
Maximum memory address space: 16M bytes
Internal 24-bit addressing
G
Optimum instruction set for controller applications
Many data types (bit, byte, word, and long word)
As many as 23 addressing modes
High code efficiency
Enhanced high-precision arithmetic operation by a 32-bit accumulator
Enhanced signed multiply/divide instructions and RETI instruction function
G
Instruction set supporting high-level language (C) and multitasking
System stack pointer
Instruction set symmetry and barrel shift instructions
G
Sleep mode (The operating clock of the CPU stops.)
G
Program patch function (Two-address pointer)
G
Increased execution speed
4-byte instruction queue
G
Enhanced interrupt function (Eight programmable priority levels)
Powerful interrupt function of 32 factors
G
Data transfer function (Extended intelligent I/O service function using up to 16 channels)
G
Lower-power consumption (standby mode)