Samsung Lazett Combo SCX-4216F, Руководство по обслуживанию

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4-11
Samsung Electronics
SUMMARY OF PRODUCT
Service Manual
4.3.1 ASIC (Chorus2)
Samsung’s S3C46Q0X 16/32-bit RISC micro controller is designed to provide a cost-effective, low power,
small die size and high performance micro-controller solution for MFP.
The S3C46Q0X is developed using ARM7TDMI core, 0.18(m CMOS standard cell, and memory cell.
•Main function block
• 1.8V internal, 3.3V external (I/O boundary) microprocessor with 4KByte Cache
• Image Processor
• On-chip clock generator with PLL
• Memory & External Bank Control
• DMA Control (5-channel)
• Interrupt Control
• 2-port USB Host /1- port USB Device (ver 1.1) Interface Control
• Parallel Port Interface Control
• UART (2 Channel)
• Synchronous Serial Interface Control
• Timer (4 Channel)
• Watch Dog Timer
• Power control: Normal, Slow, Idle, Stop and SL_IDLE mode
• A/D Converter (10-bit, 2 Channel)
• General I/O Port Control
• Print Head Control
• Carrier Motor Control
• Paper Motor Control
• Tone Generator
• RTC with calendar function
• S/W Assistant function( Rotator )
4.3.2 Flash Memory
It stores the system program and downloads the system program through the PC interface.
• Capacity : 0.5 M Byte
• Access Time : 70 nsec
4.3.3 SDRAM
It is used as a buffer, system working memory area, etc. while printing.
• Access Time : 60 nsec