7480 datasheet(32/337 Pages) RENESAS

Il numero della parte	7480

Spiegazioni elettronici	8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 7470 SERIES

PDF	337 Pages

Scroll/Zoom	100%

Produttore elettronici	RENESAS [Renesas Technology Corp]

Homepage	http://www.renesas.com

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32 / 337 page

7480 Group and 7481 Group User's Manual

1-15

HARDWARE

1.7 Central Processing Unit (CPU)

The 7480 Group and 7481 Group have the CPU common to the 740 family.

For the description of the instructions, refer to the following:

• Section 3.6 Machine Instructions

• 740 FAMILY CPU CORE BASIC FUNCTIONS: ADDRESSING MODE in data book SINGLE CHIP 8-BIT

MICROCOMPUTERS

• SERIES 740 <SOFTWARE> USER’S MANUAL

The instructions which characterize the group are as follows:

1. FST and SLW instructions are excluded.

2. MUL and DIV instructions are available.

3. WIT instruction is available (Note).

4. STP instruction is available (Note).

Note: For the above instructions, refer to Section 1.19 Power Saving Function.

The CPU has the six registers (CPU internal registers).

Figure 1.7.1 shows the CPU internal registers.

1.7 Central Processing Unit (CPU)

Figure 1.7.1 CPU Internal Registers

Accumulator

Index register X

Index register Y

Stack pointer

Program counter

Processor status register (PS)

Carry flag

Zero flag

Interrupt disable flag

Decimal mode flag

Break flag

Index X mode flag

Overflow flag

Negative flag

PCH

PCL

7480 Scheda tecnica(PDF) 32 Page - Renesas Technology Corp