M30280F6HP RENESAS [Renesas Technology Corp], M30280F6HP Datasheet - Page 80

• Manufacturer Part Number: M30280F6HP
• Description: 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES
• Manufacturer: RENESAS [Renesas Technology Corp]

M
R
R
e
E
1
. v
Figure 7.11 State Transition to Stop Mode and Wait Mode
J
6
0
C
2
9
Figure 7.11 shows the state transition from normal operation mode to stop mode and wait mode. Figure
7.12 shows the state transition in normal operation mode.
Table 7.5 shows a state transition matrix describing allowed transition and setting. The vertical line
shows current state and horizontal line shows state after transition.
CM07=0
CM06=1
CM05=0
CM11=0
CM10=1
0 .
2 /
(5)
B
0
0
8
0
4
G
J
7
a
o r
0 -
All oscillators stopped
. n
u
2
3
p
CM05, CM06, CM07: Bits in the CM0 register
CM10, CM11: Bits in the CM1 register
0
NOTES:
, 1
0
(
1. Do not go directly from PLL operation mode to wait or stop mode.
2. PLL operation mode can be entered from high speed mode. Similarly, PLL operation mode can be changed back to high speed mode.
3. When the PM21 bit is set to "0" (system clock protective function unused).
4. The on-chip oscillator clock divided by 8 provides the CPU clock.
5. Write to the CM0 register and CM1 register simultaneously by accessing in word units while CM21 bit is set to "0" (on-chip oscillator
6. Before entering stop mode, be sure to clear the CM20 bit in the CM2 register to "0" (oscillation stop and oscillation restart detection
7. The CM06 bit is set to "1" (divide-by-8).
Stop mode
M
Stop mode
Stop mode
Stop mode
2
Stop mode
Stop mode
turned off). When the clock generated externally is input to the X
function disabled).
0
: Arrow shows mode can be changed. Do not change mode to another mode when no arrow is shown.
1
0
6
7
C
2 /
, 8
page 60
M
Interrupt
1
CM10=1
CM10=1
CM10=1
CM10=1
CM10=1
6
CM10=1
Interrupt
Interrupt
Interrupt
Interrupt
Interrupt
C
f o
2 /
(6)
(6)
(6)
(6)
(6)
(4)
8
(4)
(6)
3
) B
8
5
CM21=0
On-chip oscillator mode
Normal operation mode
(selectable frequency)
On-chip oscillator low power
dissipation mode
Low power dissipation mode
Medium-speed mode
(divided-by-8 mode)
Low-speed mode
On-chip oscillator
mode (f
High-speed, medium-
speed mode
Reset
CIN
2
(ROC)
(7)
pin, transit to stop mode with this process.
PLL operation
mode
/16)
(1, 2)
CM21=1
WAIT
instruction
WAIT
instruction
WAIT
instruction
Interrupt
WAIT
instruction
WAIT
instruction
WAIT
instruction
Interrupt
Interrupt
Interrupt
Interrupt
Interrupt
7. Clock Generation Circuit
CPU operation stopped
Wait mode
Wait mode
Wait mode
Wait mode
Wait mode
Wait mode