Clock Generator Control Register - NEC mPD780065 Series Preliminary User's Manual

5.3 Clock Generator Control Register

The clock generator is controlled by the processor clock control register (PCC).
The PCC sets whether to use CPU clock selection, the ratio of division, main system clock oscillator operation/
stop and subsystem clock oscillator internal feedback resistor.
The PCC is set with a 1-bit or 8-bit memory manipulation instruction.
RESET input sets the PCC to 04H.
CHAPTER 5 CLOCK GENERATOR
Figure 5-2. Subsystem Clock Feedback Resistor
FRC
P-ch
Feedback resistor
XT1
Preliminary User's Manual U13420EJ2V0UM00
XT2
91