101
Sirius-PJ1Training
Slide 101
Multi Media (MM) Processing Unit
RTC
IC9201
MCIMX515DJM8C
Multi Media CPU
ARM Coretex A8
800MHz
IC9601
R2221T-E2
RTC
X9604
32.768MHz
I2C
D9601
D9604
VCCS+5V
5V_RTC
C9669
EDLC
The RTC(Real Time Clock) keeps the date and time. It is used for program timer
functions and checking the expiration date of the network certificate. To keep the
time information while the projector power is OFF, it can operate with electric
charge stored in the double-layer capacitor (EDLC:C9669). The standard clock is
32.768KHz (X9604), and communication with the CPU is achieved via I2C
communication.