Description Of The Main Pc Board - Toshiba B-EV4 Series Manual

2. ELECTRONICS SPECIFICATIONS

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):
Flash ROM (U5):
SDRAM (U6):
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
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.
Type: IS42S16400B-6TL
Capacity: 64M bit
It is used for drawing the print data and used as a work area.
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EO18-33025
2.3 Description of the Main PC Board