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Features – FUJITSU MB91460 SERIES FR60 User Manual

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Chapter 4 CPU Architecture

2.Features

2. Features

Features of internal architecture

• RISC architecture

• Base instruction: 1 instruction/1 cycle

• 32-bit architecture

• General-purpose register: 32-bit x 16

• 4GB of linear memory space

• Equipped with multiplier.

•32-bit x 32-bit multiplication: 5 cycles

•16-bit x 16-bit multiplication: 3 cycles

• Enhanced interrupt processing function

•High-speed respond (6 cycles)

•Support of multiple interrupts

•Level mask function (16 levels)

• Enhanced instruction for I/O operation

•Transfer instruction between memories

•Bit-processing instruction

• Highly efficient code

• Length of base instruction words: 16 bits

• Standby mode (Low power consumption mode)

• Sleep/Stop

• Setting function of clock division ratios