Register Configuration - Hitachi H8/3664 Hardware Manual

Table of Contents

Register Configuration

The H8/300H CPU has the internal registers shown in figure 2.3. There are two types of registers:

general registers and control registers. Control registers are 24-bit program counter (PC) and 8-bit

condition code register (CCR).

General Registers (ERn)

Control Registers (CR)

Stack pointer

Program counter

Condition code register

Interrupt mask bit

User bit or interrupt mask bit

Half-carry flag

Negative flag

Overflow flag

Figure 2.3 CPU Internal Registers

6 5 4 3 2 1 0

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