UPD78F1502AGK-GAK-AX Datasheet, PDF (362/1031 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcontrollers

78K0R/Lx3
CHAPTER 7 REAL-TIME COUNTER
Figure 7-1. Block Diagram of Real-Time Counter
Real-time counter control register 1 (RTCC1)
WALE WALIE WAFG RIFG RWST RWAIT
Real-time counter control register 0 (RTCC0)
RTCE RCLOE1 RCLOE0 AMPM CT2 CT1 CT0
Alarm week
register
(ALARMWW)
(7-bit)
Alarm hour
register
(ALARMWH)
(6-bit)
Alarm minute
register
(ALARMWM)
(7-bit)
fSUB
Output
latch (P30)
PM30
RTC1HZ/
TI03/TO00/
P30/INTP1
To LCD driver/controller
INTRTC
RIFG
CT0 to CT2
Year count
register
(YEAR)
(8-bit)
1 month
Month count
register
(MONTH)
(5-bit)
Week count
register
(WEEK)
(3-bit)
AMPM
1 day
Day count
register
(DAY)
(6-bit)
1 hour
Hour count
register
(HOUR)
(6-bit)
1 minute
Minute count
register
(MIN)
(7-bit)
Second
count
register
(SEC)
(7-bit)
RWST RWAIT
Wait control
0.5
seconds
Sub-count
register
(RSUBC)
(16-bit)
Count clock
= 32.768 kHz
fSUB
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Count enable/
disable circuit
RTCE
Watch error
correction
register
(SUBCUD)
(8-bit)
Internal bus
Real-time counter control register 2 (RTCC2)
RINTE RCLOE2 RCKDIV ICT2 ICT1 ICT0
fSUB
12-bit counter
RINTE
RCKDIV
RCLOE2
To cannels 0 or 4 of the TAU0
INTRTCI
Output
latch (P31)
PM31
RTCDIV/
RTCCL/TI00/
TO03/INTP2/
P31
R01UH0004EJ0501 Rev.5.01
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Jun 20, 2011