M16CSLASH26 datasheet(36/239 Pages) RENESAS

tên linh kiện	M16C/26

Giải thích chi tiết về linh kiện	16-BIT CMOS SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/20 SERIES

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Renesas Technology Corp.

Clock Generating Circuit

M16C/26 Group

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Under

development

Preliminary Specifications Rev. 0.9

Specifications in this manual are tentative and subject to change.

Clock Control

Figure 1.8.3 shows the block diagram of the clock generating circuit.

Figure 1.8.3. Clock generating circuit

CM21

fC32

CM02, CM04, CM05, CM06, CM07: CM0 register bits

CM10, CM11, CM16, CM17: CM1 register bits

PCLK0, PCLK1: PCLK register bits

CM21, CM27

: CM2 register bits

1/32

Main clock

generating circuit

CM02

CM04

CM10=1(stop mode)

WAIT instruction

CM05

NMI

Interrupt request level judgment output

RESET

Software reset

CM07=0

CM07=1

Divider

1/2

CM06=0

CM17–CM16=002

CM06=0

CM17–CM16=012

CM06=0

CM17–CM16=102

CM06=1

CM06=0

CM17–CM16=112

Details of divider

Sub-clock

generating circuit

XCIN

XCOUT

XOUT

XIN

f32

1/2

f32SIO

f8SIO

fAD

1/2

1/4

1/8

1/16

1/32

PCLK0=1

CM21

CM20

Ring

oscillator

Sub-clock

Ring

oscillator

clock

BCLK

PCLK0=0

f1SIO

PCLK1=1

PCLK1=0

f2SIO

Main

clock

Oscillation

stop, re-

oscillation

detection

circuit

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