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LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3.11.7 MSM6280 microprocessor subsystem
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Industry standard ARM926EJ-S embedded microprocessor subsystem
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16 kB instruction and 16 kB data cache
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Instruction set compatible with ARM7TDMI®
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ARM version 5TEJ instructions
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Higher performance 5 stage pipeline, Harvard cached architecture
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Higher internal CPU clock rate with on-chip cache
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Java hardware acceleration
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Enhanced memory support
Please note that NOR/PSRAM will not be supported on MSM6280.
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75 MHz and 90 MHz bus clock for SDRAM
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32-bit SDRAM
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Dual memory buses separating the high-speed memory subsystem (EBI1) from low-speed
peripherals (EBI2) such as LCD panels
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1.8 V or 2.6 V memory interface support (excluding EBI1)
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NAND FLASH memory interface
• 8/16-bit data I/O width NAND flash support
• 1- or 4-bit ECC
• 512-byte/2KB page-size support
• 2 chip selects supported for NAND Flash
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Boot from NAND
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Low-power SDRAM (LP-SDRAM) interface
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Internal watchdog and sleep timers
3.11.8 Supported interface features
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USB On-the-Go core supports both slave and host functionality
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Three universal asynchronous receiver transmitter (UART) serial ports
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USIM controller (via UART)
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Integrated 4-bit secure digital (SD) controller for SD and Mini SD cards
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Parallel LCD interface
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General-purpose I/O pins
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External keypad interface
3.11.9 Supported multimedia features
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Provide additional general purpose MIPS by using:
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Two QDSP4000s
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Dedicated hardware accelerators and compression engines
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Improve Java, BREW, and game performance
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Integrated Java and 2D/3D graphics accelerator with Sprite engine
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Enable various accessories via USB host connectivity.
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Integrated USB host controller functionality
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Enable compelling visual and audio applications.
3. TECHNICAL BRIEF
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Summary of Contents for CU405
Page 1: ...Date May 2007 Issue 1 0 Service Manual Model CU405 Service Manual CU405 Internal Use Only ...
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