Block Diagram - Hitachi SH7750 series Hardware Manual

11.1.2

Block Diagram

Figure 11.1 shows a block diagram of the RTC.
RTCCLK
16.384 kHz
Prescaler
128 Hz
R64CNT
RSECCNT
RSECAR
Rev. 4.0, 04/00, page 218 of 850
RTC crystal
32.768 kHz
oscillator
Counter unit
RMINCNT RHRCNT
RMINAR RHRAR
Figure 11.1 Block Diagram of RTC
ATI
PRI
CUI
Interrupt
control unit
RDAYCNT RWKCNT
RDAYAR RWKAR
To registers
Bus interface
Internal peripheral module bus
RESET, STBY, etc
RTC operation
control unit
RCR1
RCR2
RMONCNT RYRCNT
RMONAR