Registers; Figure 2.9 Cpu Registers - Renesas H8SX/1500 Series Hardware Manual

32-bit cisc microcomputer

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Section 2 CPU

Registers

The H8SX CPU has the internal registers shown in figure 2.9. There are two types of registers:

general registers and control registers. The control registers are the 32-bit program counter (PC),

8-bit extended control register (EXR), 8-bit condition-code register (CCR), 32-bit vector base

General Registers and Extended Registers

Control Registers

Stack pointer

Program counter

Condition-code register

Interrupt mask bit

User bit or interrupt mask bit

Half-carry flag

Negative flag

Rev. 3.00 Mar. 14, 2006 Page 28 of 804

REJ09B0104-0300

Sign extension

7 6 5 4 3 2 1 0

I UI H U N Z V C

7 6 5 4 3 2 1 0

T — — — — I2 I1 I0

Overflow flag

Extended control register

Interrupt mask bits

Vector base register

Short address base register

Multiply-accumulate register

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