Renesas RL78 Series User Manual page 285

16-bit single-chip microcontrollers

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Real-time clock control register 1

WALE WALIE WAFG

Caution The count of year, month, week, day, hour, minutes and second can only be performed when a

subsystem clock (f

the low-speed oscillation clock (f

is available. However, the constant-period interrupt interval when f

with the constant-period (the value selected with RTCC0 register) × f

R01UH0515EJ0120 Rev.1.20

Dec 16, 2016

Figure 8-1. Block Diagram of Real-time Clock

= 32.768 kHz) is selected as the operation clock of the real-time clock. When

Real-time clock control register 0

Alarm minute

Minute count

Internal bus

= 15 kHz) is selected, only the constant-period interrupt function

CHAPTER 8 REAL-TIME CLOCK

Subsystem clock supply mode

control register (OSMC)

Wait control

Count enable/

disable circuit

is selected will be calculated

Rl78/g1d R5f11agg R5f11agh R5f11agj