M16CSLASH62P datasheet(52/349 Pages) MITSUBISHI

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Clock Generation Circuit

Mitsubishi microcomputers

M16C / 62P Group

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Under

development

Preliminary Specifications Rev.1.0

Specifications in this manual are tentative and subject to change.

• CPU clock source

• Peripheral function

clock source

Use of clock

Main clock

oscillation circuit

Sub clock

oscillation circuit

Item

•CPU clock source

• Timer A, B's clock

source

Clock frequency

0 to 16 MHz

32.768 kHz

• Ceramic oscillator

• Crystal oscillator

Usable oscillator

• Crystal oscillator

XIN, XOUT

Pins to connect

oscillator

XCIN, XCOUT

Presence

Oscillation stop,

restart function

Presence

Oscillating

Oscillator status

after reset

Stopped

Externally derived clock can be input

Other

PLL frequency

synthesizer

10 to 24 MHz

Presence

Stopped

Ring oscillator

• CPU clock source

• Peripheral function clock source

• CPU and peripheral function

clock sources when the main

clock stops oscillating

About 1 MHz

Presence

Stopped

• CPU clock source

• Peripheral function clock

source

Clock Generation Circuit

The clock generation circuit contains four oscillator circuits as follows:

(1) Main clock oscillation circuit

(2) Sub clock oscillation circuit

(3) Ring oscillator (oscillation stop detect function)

(4) PLL frequency synthesizer

Table 1.9.1 lists the clock generation circuit specifications. Figure 1.9.1 shows the clock generation circuit.

Figures 1.9.2 to 1.9.6 show the clock-related registers.

Table 1.9.1. Clock Generation Circuit Specifications

M16C/62P 데이터시트(PDF) 52 Page - Mitsubishi Electric Semiconductor

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