PD70F3826_15 Datasheet, PDF (42/75 Pages) Renesas Technology Corp – RENESAS MCU

μ PD70F3826, 70F3827, 70F3828, 70F3829, 70F3830, 70F3831, 70F3832, 70F3833, 70F3834, 70F3835, 70F3836, 70F3837 11. REAL-TIME COUNTER
The following figure shows the configuration of real-time timer.
CLOE1
RTC1HZ
Minute
alarm
Hour
alarm
Day-of-week
alarm
Count clock
= 32.768 kHz
fBRG
Sub-counter
(16-bit)
fXT
1 minute
1 hour
1 day
Second
counter
(7-bit)
Minute
counter
(7-bit)
Hour
counter
(6-bit)
Day
counter
(3-bit)
1 month
Day-of week
counter
(3-bit)
Month
counter
(5-bit)
Year
counter
(8-bit)
Count enable/
disable circuit
Second
counter
write buffer
Minute
counter
write buffer
Hour
counter
write buffer
Day
counter
write buffer
Week
counter
write buffer
Month
counter
write buffer
Year
counter
write buffer
INTRTC1
INTRTC0
12-bit counter ^fXT/212
fXT/2¹¹
fXT/2¹⁰
fXT/2⁹
fXT/2⁸
fXT/2⁷
fXT/2⁶
fXT/2⁶
fXT/2
ICT2 to ICT0
RINTE
CKDIV
CLOE2
CLOE0
Remark
fBRG:
Real-time counter count clock frequency
fXT:
Subclock frequency
INTRTC0: Real-time counter fixed-cycle signal
INTRTC1: Real-time counter alarm match signal
INTRTC2: Real-time counter interval signal
INTRTC2
RTCDIV
RTCCL
R01DS0029EJ0001 Rev.0.01
Sep 30, 2010
Page 42 of 75