MC-78F0712-KIT Renesas Electronics America, MC-78F0712-KIT Datasheet - Page 80

• Manufacturer Part Number: MC-78F0712-KIT
• Description: KIT REF SYSTEM 78K0 UPD78F0712
• Manufacturer: Renesas Electronics America

Specifications of MC-78F0712-KIT

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(3) Main OSC control register (MOC)
78
MOC is the register that controls the operation of the X1 oscillator or the internal high-speed oscillator which
generates the high-speed system clock.
This register is used to stop the high-speed system clock when the CPU is operating with the internal low-speed
oscillation clock.
MOC can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation clears this register to 00H.
Address: FFA2H
Symbol
MOC
Cautions 1. When setting MSTOP to 1, be sure to confirm that the CPU operates with the
MSTOP
MSTOP
<7>
0
1
After reset: 00H
2. The peripheral hardware cannot operate if the high-speed system clock is
Figure 5-4. Format of Main OSC Control Register (MOC)
Oscillator oscillating
Oscillator stopped
internal low-speed oscillation clock (When MCS = 0).
stopped when the high-speed system clock is selected as the peripheral
hardware clock. To resume the operation of the peripheral hardware after the
peripheral hardware clock has been stopped, initialize the peripheral hardware.
In addition, stop peripheral hardware that is operating on the high-speed system
clock before setting MSTOP to 1.
6
0
High-speed system clock (X1 oscillator, Internal high-speed oscillator) operation control
R/W
CHAPTER 5 CLOCK GENERATOR
User’s Manual U17890EJ2V0UD
5
0
4
0
3
0
2
0
1
0
0
0