Fujitsu FR20 User Manual

CHAPTER 3

CPU

This chapter provides basic explanations for such
elements as the architecture, specifications, and
commands, etc., required to understand the CPU core
functions of the FR series.

3.1 Memory Space

3.2 CPU Architecture

3.3 Dedicated Registers

3.4 General-purpose Register

3.5 Data Construction

3.6 Word Alignment

3.7 Memory Map

3.8 Overview of Instructions

3.9 EIT (Exception, Interruption, and Trap)

3.10 Reset Sequence

3.11 Memory Access Mode

3.12 Clock Generation Section (Low Power Consumption Mechanism)