SH7750_08 Datasheet, PDF (396/1162 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

Section 11 Realtime Clock (RTC)
11.1.2 Block Diagram
Figure 11.1 shows a block diagram of the RTC.
RTCCLK
16.384 kHz
Prescaler
128 Hz
32.768 kHz
RTC crystal
oscillation
circuit
R64CNT
Counter unit
ATI
PRI
CUI
RESET, STBY, etc
RTC operation
control unit
Interrupt
control unit
RCR1
RCR2
RCR3*
RSECCNT RMINCNT RHRCNT RDAYCNT RWKCNT RMONCNT RYRCNT
RSECAR
RMINAR
RHRAR
RDAYAR
RWKAR
RMONAR
RYRAR*
To registers
Bus interface
Note: * SH7750R only
Internal peripheral module bus
Figure 11.1 Block Diagram of RTC
Rev.7.00 Oct. 10, 2008 Page 312 of 1074
REJ09B0366-0700