HD6413003RVF RENESAS [Renesas Technology Corp], HD6413003RVF Datasheet - Page 523

• Manufacturer Part Number: HD6413003RVF
• Description: microcontroller (MCU)
• Manufacturer: RENESAS [Renesas Technology Corp]

16.1 Overview
The H8/3003 has a built-in clock pulse generator (CPG) that generates the system clock (ø) and
other internal clock signals (ø/2 to ø/4096).
The H8/3003 is available in a clock-halving version and a 1:1 version, which have different clock
pulse generator configurations. The clock pulse generator of the clock-halving version consists of
an oscillator circuit, a system clock divider, and prescalers for the on-chip supporting modules.
The clock pulse generator of the 1:1 version consists of an oscillator circuit, a duty adjustment
circuit, and the prescalers.
16.1.1 Block Diagram
Figure 16-1 shows block diagrams of the clock pulse generator.
XTAL
EXTAL
XTAL
EXTAL
Figure 16-1 Block Diagram of Clock Pulse Generator
Section 16 Clock Pulse Generator
Oscillator
Oscillator
a. Clock pulse generator of clock-halving version
b. Clock pulse generator of 1:1 version
adjustment
Frequency
505
divider
circuit
(1/2)
Duty
ø
ø
CPG
CPG
ø/2 to ø/4096
ø/2 to ø/4096
Prescalers
Prescalers