Renesas Single-Chip Microcomputer M37531T-ADS Informacje Techniczne Pobierz pdf (Strona 32)

Stop mode

Wait mode

CPU operation stopped

CM10=“1”

All oscillators stopped

Transition of stop mode, wait mode

BCLK :f(X

)/8

CM07=“0” CM06=“1”

Main clock is oscillating

Sub clock is oscillating

Main clock is oscillating

Sub clock is stopped

Note 1: Switch clocks after oscillation of main clock is fully stable.

Note 2: Switch clocks after oscillation of sub clock is fully stable.

Note 3: Change CM17 and CM16 before CM06.

Note 4: Please change according to a direction of an arrow.

Main clock is oscillating

Sub clock is stopped

CM04=“1”

Note 1, 3

CM04=“0”

BCLK :f(X

)/16

CM07=“0” CM06=“0”

CM17=“1” CM16=“1”

BCLK :f(X

)/4

CM07=“0” CM06=“0”

CM17=“1” CM16=“0”

BCLK :f(X

)

CM07=“0” CM06=“0”

CM17=“0” CM16=“0”

BCLK :f(X

)/2

CM07=“0” CM06=“0”

CM17=“0” CM16=“1”

High-speed mode

Medium-speed mode

(divided-by-2 mode)

Medium-speed mode

(divided-by-16 mode)

Medium-speed mode

(divided-by-4 mode)

BCLK :f(X

)/16

CM07=“0” CM06=“0”

CM17=“1” CM16=“1”

BCLK :f(X

)/4

CM07=“0” CM06=“0”

CM17=“1” CM16=“0”

BCLK :f(X

)

CM07=“0” CM06=“0”

CM17=“0” CM16=“0”

BCLK :f(X

)/2

CM07=“0” CM06=“0”

CM17=“0” CM16=“1”

High-speed mode

Medium-speed mode

(divided-by-2 mode)

Medium-speed mode

(divided-by-16 mode)

Medium-speed mode

(divided-by-4 mode)

Medium-speed mode

(divided-by-8 mode)

Transition of normal mode

Normal mode

CM10=“1”

Stop mode

All oscillators stopped

Wait mode

CPU operation stopped

CM04=“1”

CM05=“0”

BCLK :f(X

CIN

)

CM07=“1”

Low-speed mode

BCLK :f(X

CIN

)

CM07=“1”

Main clock is oscillating

Sub clock is oscillating

Medium-speed mode

(divided-by-8 mode)

BCLK :f(X

)/8

CM07=“0”

CM06=“1”

CM04=“0”

CM06=“1”

CM06=“0”

Note 1

Note 3

CM07=“0”

Note 1, 3

CM07=“1”

Note 2

CM10=“1”

Stop mode

All oscillators stopped

Wait mode

CPU operation stopped

(Please see the following as transition of normal mode.)

CM07=“0”

Note 1

CM06=“1”

CM04=“0”

CM07=“1”

Note 2

CM05=“1”

CM07=“0”

Note 1

CM06=“0”

Note 3

CM04=“1”

Interrupt

WAIT

instruction

Interrupt

WAIT

instruction

Interrupt

WAIT

instruction

Interrupt

Main clock is stopped

Sub clock is oscillating

Low power

dissipation mode

CM05=“1”

High-speed/medium-

speed mode

Low-speed/low power

dissipation mode

Reset

Medium-speed mode

(Divided-by-8 mode)

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