M16C Datasheet, PDF (47/262 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Preliminary Specifications REV.B
Mitsubishi microcomputers
Specifications in this manual are tentative and subject to change.
M16C / 6N Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Power Control
Transition of stop mode, wait mode
Reset
Interrupt
Stop mode
CM10 = 1
All oscillators stopped
Medium-speed mode
(Divided-by-8 mode)
CM05 = 0
CM04 = 1
High-speed/medium-
speed/low-speed/low
power dissipation mode
Normal mode
CM21 = 1
CM21 = 0
Ring oscillator
mode
WAIT
instruction
Interrupt
Wait mode
CPU operation stopped
Transition of normal mode
Medium-speed mode (divided-by-8 mode)
BCLK : f(XIN)/8
CM07 = 0 CM06 = 1
CM05 = 0 : Main clock is oscillating
CM04 = 0 : Sub clock is stopped
High-speed mode
BCLK : f(XIN)
CM07 = 0 CM06 = 0
CM17 = 0 CM16 = 0
CM05 = 0
CM04 = 1
Main clock is oscillating
Sub clock is oscillating
Note 1: _{Switch clocks after oscillation of both}
is sufficiently stable.
Note 2: _{Change CM06 after changing CM17}
and CM16.
Medium-speed mode (divided-by-2)
BCLK : f(XIN)/
CM07 = 0 ² CM06 = 0
CM17 = 0 CM16 = 1
Low-speed mode
BCLK : f(XCIN)
CM07 = 1
Medium-speed mode (divided-by-4)
BCLK : f(XIN)/4
CM07 = 0 CM06 = 0
CM17 = 1 CM16 = 0
Medium-speed mode (divided-by-16)
BCLK : f(XIN)/16
CM07 = 0 CM06 = 0
CM17 = 1 CM16 = 1
CM05 = 0
CM04 = 0
Main clock is oscillating
Sub clock is stopped
High-speed mode
BCLK : f(XIN)
CM07 = 0 CM06 = 0
CM17 = 0 CM16 = 0
Medium-speed mode (divided-by-2)
BCLK : f(XIN)/
CM07 = 0 ^2CM06 = 0
CM17 = 0 CM16 = 1
CM05 = 1
CM04 = 1
Main clock is stopped
Sub clock is oscillating
Low power dissipation mode
BCLK : f(
XCIN)
CM07 = 1
Medium-speed mode (divided-by-4) Medium-speed mode (divided-by-16)
BCLK: f(XIN)/4
CM07 = 0 CM06 = 0
CM17 = 1 CM16 = 0
BCLK : f(XIN)/1
CM07 = 0 ^6CM06 = 0
CM17 = 1 CM16 = 1
Figure 5-7. State transition diagram of power control mode
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