Renesas rl78 Manuel D’Utilisation
RL78/G1A
CHAPTER 8 INTERVAL TIMER
8.3.2 Subsystem clock supply mode control register (OSMC)
The WUTMMCK0 bit can be used to select the 12-bit interval timer and real-time clock operation clock.
In addition, by stopping clock functions that are unnecessary, the RTCLPC bit can be used to reduce power
consumption. For details about setting the RTCLPC bit, see CHAPTER 5 CLOCK GENERATOR.
The OSMC register can be set by an 8-bit memory manipulation instruction.
Reset signal generation clears this register to 00H.
Figure 8-3. Format of Subsystem Clock Supply Mode Control Register (OSMC)
Address: F00F3H After reset: 00H R/W
Symbol
7 6 5 4 3 2 1 0
OSMC RTCLPC
0
0 WUTMMCK0
0 0 0 0
WUTMMCK0
Selection of operation clock for real-time clock and 12-bit interval timer.
0 Subsystem
clock
(f
SUB
)
1
Low-speed on-chip oscillator clock (f
IL
)
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