Chapter 2 Cpu; Cpu - Fujitsu F2MC-16LX MB90580 Series Hardware Manual

Chapter 2:

CPU

2.1 CPU
2
The F MC-16LX CPU core is a 16-bit CPU designed for applications that require high-speed real-time
processing, such as home-use or vehicle-mounted electronic appliances. The F
is designed for controller applications, and is capable of high-speed, highly efficient control processing.
In addition to 16-bit data, the F
accumulator. (32-bit data can be processed with some instructions.) Up to 16 Mbytes of memory space
(expandable) can be used, which can be accessed by either the linear pointer or bank method. The
instruction system, based on the F
compatible with high-level languages, expanding addressing modes, reinforcing multiplication and
sion instructions, and enhancing bit processing. The features of the F
• Minimum instruction execution time: 62.5 ns (at 4-MHz oscillation, 4 times multiplication)
• Maximum memory space: 16 Mbytes, accessed in linear or bank mode
• Instruction set optimized for controller applications
Rich data types: Bit, byte, word, long word
Extended addressing modes: 23 types
High-precision operation (32-bit length) based on 32-bit accumulator
Signed multiply and division, enhanced RETI instruction
• Powerful interrupt functions
Eight priority levels (programmable)
• CPU-independent automatic transfer
Up to 16 channels of extended intelligent I/O service
• Instruction set compatible with high-level language (C)/multitasking
System stack pointer/instruction set symmetry/barrel-shift instructions
• Improved execution speed: 4-byte queue
2
MC-16LX CPU core can process 32-bit data by using an internal 32-bit
2
MC-8 A-T architecture, has been reinforced by adding instructions
2
MC-16LX instruction set
2
MC-16LX CPU are explained below.
divi-