HD6417705F133V Datasheet, PDF (400/741 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7700 Series

Externally
connected
circuit
EXTAL2
XTAL2
Oscillator
circuit
30-
second
Reset ADJ
128 Hz
32.768 kHz
Prescaler
(÷ 2)
16.384 kHz
R64CNT
RSECCNT
RMINCNT
RHRCNT
RWKCNT
Bus
interface
Prescaler
(÷ 128)
RDAYCNT
RMONCNT
RYRCNT
ATI
Interrupt
control
PRI
circuit
Carry
CUI
detection
circuit
Comparator
RSECAR
RMINAR
RHRAR
RWKAR
RDAYAR
RMONAR
RYRAR
RCR1
RCR2
RCR3
Legend:
R64CNT: 64-Hz counter
RSECCNT: Second counter
RMINCNT: Minute counter
RHRCNT: Hour counter
RWKCNT: Day of the week counter
RDAYCNT: Date counter
RMONCNT: Month counter
RYRCNT: Year counter
RSECAR: Second alarm register
RTC
RHRAR: Minute alarm register
RMINAR: Hour alarm register
RWKAR: Day of the week alarm register
RDAYAR: Date alarm register
RMONAR: Month alarm register
RYRAR: Year alarm register
RCR1: RTC control register 1
RCR2: RTC control register 2
RCR3: RTC control register 3
Figure 15.1 RTC Block Diagram
Rev. 2.00, 09/03, page 352 of 690