7. Clock generator MC97F6108A User’s manual
7.2 Register map
Table 10. Clock Generator Register Map
System and Clock Control Register
7.3 Register description
SCCR (System and Clock Control Register): 8AH
Select WDTRC oscillator on or off.
Control the scheme of clock change. If this bit set to ‘0’, clock change is
controlled by hardware. But if this set to ‘1’, clock change is controlled by
software.
Clock changed by hardware during stop mode (default)
Clock changed by software
Determine division rate.
NOTE: To change by software, CHBS set to ‘1’
NOTES:
1. SCCR[2], SCCR[3] and SCCR[4] must be kept '0'.
2. When clear CHBS, keep other bits in SCCR.