CONFIDENTIAL 7
parallel processing of control and computation operations, and the unified memory architecture (UMA)
eliminates the memory cost. Besides, versatile general peripherals are also to provide the data
communication capability.
2. Memory IC
a. SDRAM
This 256Mbit SDRAM on main board is to be the data buffer. The image file, print data, video frame
are temporarily stored during operation.
b.NOR Flash
This 8Mbit flash memory is applied as respective ASIC need which store the MCU code, the DSP
code,the logo, the OSD (On-Screen Display) map and etc.
c.NAND Flash
This 128MB flash memory is to store image related data for later image compounded using.
3. LED & Sensor
a. Status/Error LED/Indicate LED
Show printer status and error message. Green LED shining means printer ready. Green LED blinking
means printer busy. Rde LED blinking means error message. Orange LED shining means battery
charging. Blue LED blinking means push the print button. Blue LED shining means printing.
Printing LED (Blue)
On :
Printing
Blinking :
To hint user click the print button to print
Battery LED (Red)
On :
Charging
Blinking :
Battery low
Error status LED (Green)
On :
Printer is ready for processing job
Blinking :
Printer is processing job, or in power-up initialization state
Error status LED (Red)
Blinking :
Indicate error
