LG B2100, Service Manual

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/ Service Manual
3. TECHNICAL BRIEF
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AD6527 is an ADI designed processor.
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AD6527 consists of
1. Control Processor Subsystem
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32-bit ARM7TDMI Control Processor
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58.5 MHz operation at 1.7V
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On-board 16KB instruction/Data Cache
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1 Mbits of on-chip System SRAM
2. DSP Subsystem
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16-bit Fixed Point DSP Processor
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91 MIPS at 1.7V
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16K word Data and 16K word Program SRAM
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4K word Program Instruction Cache
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Architecture supports Full Rate, Enhanced Full Rate, Half Rate, and AMR Speech
Encoding/Decoding Algorithms
3. Peripheral Subsystem
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Shared on-chip peripheral and off-chip interface:
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Support for Burst and Page Mode Flash
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Support for Pseudo SRAM
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Ciphering module for GPRS supporting GAE1 and GAE2 encryption algorithms
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Parallel and Serial Display Interface
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8 x 8 Keypad Interface
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Four independent programmable backlight plus One Service Light
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1.8V and 3.0V, 64 kbps SIM interface
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Universal System Connector Interface
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Slow, Medium and Fast IrDA transceiver interface
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Enhanced Generic Serial Port
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Dedicated SPI interface
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Thumbwheel Interface
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JTAG Interface for Test and In-Circuit Emulation
4. Other
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Supports 13 MHz and 26 MHz Input Clocks
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1.8V Typical Core Operating Voltages
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204-Ball LFBGA(mini-BGA) Package
5. Applications
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GSM900/DCS1800/PCS1900/PCS850 Wireless Terminals
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GSM Phase 2 + Compliant
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GPRS Class 12 Compliant
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Multimedia Services(MMS)
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Extended Messaging System(EMS)