Register Configuration; Figure 2.6 Cpu Registers - Renesas H8S Series Hardware Manual

16-bit single-chip microcomputer

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Register Configuration

The H8S/2600 CPU has the internal registers shown in figure 2.6. There are two types of registers;

general registers and control registers. The control registers are a 24-bit program counter (PC), an

8-bit extended control register (EXR), an 8-bit condition code register (CCR), and a 64-bit

multiply-accumulate register (MAC).

General Registers (Rn) and Extended Registers (En)

Control Registers (CR)

Sign extension

Stack pointer

Program counter

Extended control register

Interrupt mask bits

Condition-code register

Interrupt mask bit

User bit or interrupt mask bit

Half-carry flag

Negative flag

Overflow flag

Multiply-accumulate register

Rev. 6.00 Mar 15, 2006 page 21 of 570

Section 2 CPU

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REJ09B0211-0600