CHAPTER 5 CLOCK GENERATOR
Preliminary User’s Manual U16846EJ1V0UD
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5.8.3 Register settings
The table below shows the statuses of the setting flags and status flags when each mode is set.
Table 5-7. Clock and Register Settings
Setting Flag
Status Flag
MCM Register
MOC Register
RCM Register
MCM Register
f
CPU
Mode
MCM0 MSTOP
RSTOP
Note 1
MCS
Ring-OSC
oscillating
1 0 0 1
High-speed system
clock
Note 2
Ring-OSC
stopped
1 0 1 1
High-speed system
clock oscillating
0 0 0 0
Ring-OSC clock
High-speed system
clock stopped
0 1 0 0
Notes 1. This is valid only when “can be stopped by software” is selected for Ring-OSC by the option byte.
2. Do not set MSTOP to 1 during high-speed system clock operation (oscillation of high-speed system
clock is not stopped even when MSTOP = 1).