Slow Mode - Panasonic MN101L Series User Manual

4.2.2

SLOW Mode

Transition from NORMAL to SLOW
Figure:4.2.6 shows the mode transition procedure from NORMAL to SLOW.
(The low-speed clock oscillation is enabled in the low-speed oscillation clock control register (SCLKCNT). Fig-
ure:4.1.1 shows the Operation Enable signal for external slow-speed oscillation circuit or internal slow-speed
oscillation circuit.)
Set the CPUM as described in Table 4.1.3.)
Figure:4.2.6 Transition Flow from NORMAL Mode to SLOW Mode
The oscillation stabilization wait time should be determined in consultation with the manufac-
turer of oscillator.
.. ..
NORMAL mode
CPUM.XIMOD == 1
YES
Transition to SLOW mode
(*) When SCLKCNT.SOSCCNT=1, SOSCCLK starts.
SLOW mode
NO
Start the low-speed oscillation (*)
CPUM.XIMOD = 1
The low-speed oscillation
stabilization wait time
When SCLKCNT.SRCCNT=1, SRCCLK starts.
Chapter 4
Clock/ Mode/ Voltage Control
Mode Control Function IV - 17