M16C6K9 Datasheet, PDF (38/292 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

M16C/6K9 Group
Power control
Transition of stop mode, wait mode
All oscillators stop
Stop mode
All oscillators stop
Stop mode
CM10 = “1”
Interrupt
Interrupt
CM10 = “1”
All oscillators stop
Stop mode
CM10 = “1”
Interrupt
Reset
Medium-speed mode
(Divided-by-8 mode)
High-speed/medium-
speed mode
low-speed/low power
dissipation mode
WAIT
command
Interrupt
CPU operation stop
Wait mode
WAIT
command
Interrupt
CPU operation stop
Wait mode
WAIT
command
Interrupt
CPU operation stop
Wait mode
Normal mode
(Please see the diagram below on transition of normal mode)
Transition of normal mode
Main clock oscillation
Sub clock stop
Medium-speed mode (divided-by-8 mode)
CM06 = “1”
Main clock is oscillating
Sub clock is oscillating
High-speed mode
BCLK : f(XIN)
CM07 = “0” CM06 = “0”
CM17 = “0” CM16 = “0”
Medium-speed mode
(divided-by-4)
BCLK : f(XIN)/4
CM07 = “0” CM06 = “0”
CM17 = “1” CM16 = “0”
BCLK : f(XIN)/8
CM07 = “0” CM06 = “1”
Medium-speed mode
(divided-by-2)
BCLK : f(XIN)/2
CM07 = “0” CM06 = “0”
CM17 = “0” CM16 = “1”
Medium-speed mode
(divided-by-16)
BCLK : f(XIN)/16
CM07 = “0” CM06 = “0”
CM17 = “1” CM16 = “1”
Medium-speed mode
(divided-by-8)
BCLK : f(XIN)/8
CM07 = “0”
CM06 = “1”
CM07 = “0” Note 1
CM06 = “1”
CM04 = “0”
CM07 = “0”
Note1,Note3
Main clock is oscillating
Sub clock is oscillating
Low-speed mode
CM07 = “1”
Note2
BCLK : f(XCIN)
CM07 = “1”
CM05 = “0”
CM05 = “1”
CM06 = “0”
Note1,Note3
CM04 = “0”
CM04 = “1”
Main clock is oscillating
Sub clock is stop
High-speed mode
BCLK : f(XIN)
CM07 = “0” CM06 = “0”
CM17 = “0” CM16 = “0”
Medium-speed mode
(divided-by-2)
BCLK : f(XIN)/2
CM07 = “0” CM06 = “0”
CM17 = “0” CM16 = “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”
CM07 = “1” Note 2
CM05 = “1”
Main clock is stop
Sub clock is oscillating
CM07 = “0” Note 1
CM06 = “0” Note 3
CM04 = “1”
Low power dissipation mode
BCLK : f(XCIN)
CM07 = “1”
Note 1: Please switch after the main clock oscillation being stable.
Note 2: Please switch after the sub clock oscillation being stable.
Note 3: Please change the CM06 after CM16,CM17 being changed.
Note 4: Please transit following the arrow direction.
Fig.WA-5 State transition diagram of Power control mode
Rev.1.00 Jun 06, 2003 page 38 of 290