HD6433636SW datasheet(16/418 Pages) RENESAS

16 / 418 page

Table 1.1

Features

Item

Description

CPU

High-speed H8/300L CPU

• General-register architecture

 General registers: Sixteen 8-bit registers (can be used as eight 16-bit

registers)

• Operating speed

 Max. operating speed: 5 MHz

 Add/subtract: 0.4 µs (operating at ø= 5 MHz)

 Multiply/divide: 2.8 µs (operating at ø= 5 MHz)

 Can run on 32.768 kHz subclock

• Instruction set compatible with H8/300 CPU

 Instruction length of 2 bytes or 4 bytes

 Basic arithmetic operations between registers

 MOV instruction for data transfer between memory and registers

• Instruction features

 Multiply (8 bits × 8 bits)

 Divide (16 bits ÷ 8 bits)

 Bit accumulator

 Register-indirect designation of bit position

Interrupts

30 interrupt sources

• 13 external interrupt sources: IRQ

4 to IRQ 0, WKP 7 to WKP0

• 17 internal interrupt sources

Clock pulse

generators

Two on-chip clock pulse generators

• System clock pulse generator: 1 MHz to 10 MHz

• Subclock pulse generator: 32.768 kHz

Power-down

modes

Six power-down modes

• Sleep mode

• Standby mode

• Watch mode

• Subsleep mode

• Subactive mode

• Active (medium-speed) mode

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