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M16C62A Datasheet, PDF (35/242 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER | |||
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Power control
Mitsubishi microcomputers
M16C / 62A Group (80-pin)
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Transition of stop mode, wait mode
Reset
All oscillators stopped
Stop mode
CM10 = â1â
Interrupt
All oscillators stopped Interrupt
Stop mode
CM10 = â1â
All oscillators stopped
Stop mode
CM10 = â1â
Interrupt
Medium-speed mode
(divided-by-8 mode)
WAIT
instruction
Interrupt
CPU operation stopped
Wait mode
High-speed/medium-
speed mode
WAIT
instruction
Interrupt
CPU operation stopped
Wait mode
Low-speed/low power
dissipation mode
WAIT
instruction
Interrupt
CPU operation stopped
Wait mode
Normal mode
(Refer to the following for the transition of normal mode.)
Transition of normal mode
Main clock is oscillating
Sub clock is stopped
Medium-speed mode
(divided-by-8 mode)
CM06 = â1â
BCLK : f(XIN)/8
CM07 = â0â CM06 = â1â
Main clock is oscillating CM04 = â0â
Sub clock is oscillating
CM04 = â1â
(Notes 1, 3)
High-speed mode
Medium-speed mode
(divided-by-2 mode)
BCLK : f(XIN)
CM07 = â0â CM06 = â0â
CM17 = â0â CM16 = â0â
BCLK : f(XIN)/2
CM07 = â0â CM06 = â0â
CM17 = â0â CM16 = â1â
Medium-speed mode
(divided-by-8 mode)
Medium-speed mode
(divided-by-4 mode)
BCLK : f(XIN)/4
CM07 = â0â CM06 = â0â
CM17 = â1â CM16 = â0â
Medium-speed mode
(divided-by-16 mode)
BCLK : f(XIN)/16
CM07 = â0â CM06 = â0â
CM17 = â1â CM16 = â1â
BCLK : f(XIN)/8
CM07 = â0â
CM06 = â1â
CM07 = â0â (Note 1)
CM06 = â1â
CM04 = â0â
CM07 = â0â
(Note 1, 3)
CM07 = â1â
(Note 2)
Main clock is oscillating
Sub clock is oscillating
Low-speed mode
BCLK : f(XCIN)
CM07 = â1â
CM05 = â0â
CM05 = â1â
CM06 = â0â
(Notes 1,3)
CM04 = â0â Main clock is oscillating CM04 = â1â
Sub clock is stopped
High-speed mode
Medium-speed mode
(divided-by-2 mode)
BCLK : f(XIN)
CM07 = â0â CM06 = â0â
CM17 = â0â CM16 = â0â
BCLK : f(XIN)/2
CM07 = â0â CM06 = â0â
CM17 = â0â CM16 = â1â
Medium-speed mode
(divided-by-4 mode)
BCLK : f(XIN)/4
CM07 = â0â CM06 = â0â
CM17 = â1â CM16 = â0â
Medium-speed mode
(divided-by-16 mode)
BCLK : f(XIN)/16
CM07 = â0â CM06 = â0â
CM17 = â1â CM16 = â1â
Main clock is stopped
Sub clock is oscillating
Low power dissipation mode
CM07 = â1â (Note 2)
CM05 = â1â
BCLK : f(XCIN)
CM07 = â1â
CM07 = â0â (Note 1)
CM06 = â0â (Note 3)
CM04 = â1â
Note 1: Switch clock after oscillation of main clock is sufficiently stable.
Note 2: Switch clock after oscillation of sub clock is sufficiently stable.
Note 3: Change CM06 after changing CM17 and CM16.
Note 4: Transit in accordance with arrow.
Figure 1.9.5. State transition diagram of Power control mode
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