94
Sirius-PJ1Training
Slide 94
Multi Media (MM) Processing Unit
MM Entire Configuration
Power
supply
(Regulator IC)
HAND
FLASH ROM
DDR2
SDRAM
DC+5V
Connecter (70pin)
USB
LAN
RTC
Control Signal
Video Signal
Audio Signal
CPU for ulti Media
MAIN PWB
MM_P PWB
DC+6.2V
Wireless LAN USB Memory
Wireless LAN
When Viewer and Network are selected in the menu of the projector, the video
output from the MM board is output to the MAIN board via POMM2 (70 pin
connector) to project the video output.
The interface with the MAIN board is performed via POMM2 (70 pin connector).
The main signals to the POMM2 connector are the power supply, the control
signal, the video signal, and the audio signal. The communication (control signal)
with the MAIN board are possible with 2 circuits, USB and UART.
The main circuit configuration of the MM board is as follows;
¾
Power circuit: Generates electric power required in the MM board from
+6,2V.
¾
CPU circuit: Consists of CPU, NAND Flash, and DDR2SD RAM.
¾
USB circuit: Consists of CPU, USB-HUB, Hi-Side SW, and USB terminal.
¾
LAN circuit: Consists of CPU, LAN-PHY, and RJ-45 terminal.
¾
RTC circuit: Consists of RTC-IC (Real Time Clock).
