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2. ELECTRONICS SPECIFICATIONS EO18-33025
2.3 Description of the Main PC Board
2-3
2.3 Description of the MAIN PC Board
This PC board, the brain of the printer, is comprised of the following components.
32bit RISC CPU (U2): Type: AT91SAM9260
The 32bit RISC CPU operates the following processing:
Controlling the interfaces
• Serial Interface (RS-232C)
• Parallel Interface (Centronics)
• Eternet (10BASET/100BASETX)
Controlling the Status LED
Detect the [Feed] key
Controlling the read/write operation on the memory
• Flash ROM
• SDRAM
• SD Card
Controlling the options
• Cutter Module
• Strip Module
Control and detect sensor statuses
• Ribbon Sensor
• Cover Open Sensor
• Feed Gap Sensor
• Black Mark Sensor
• Motor Temperature Thermistor
Controlling the Print Head
Flash ROM (U5): Type: MX29LV320CBTC-70G
Capacity: 32M bit
The programmed data of the boot program, main program, C/G, writable
character are written into the flash ROM.
SDRAM (U6): Type: IS42S16400B-6TL
Capacity: 64M bit
It is used for drawing the print data and used as a work area.