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3. TECHNICAL BRIEF

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• AD6527 is an ADI designed processor

• AD6527 consists of

1. Control Processor Subsystem

• 32-bit ARM7TDMI Control Processor

• 58.5 MHz operation at 1.7V

• On-board 16KB instruction/Data Cache

• 1 Mbitsof on-chip System SRAM

2. DSP Subsystem

• 16-bit Fixed Point DSP Processor

• 91 MIPS at 1.7V

• 16K word Data and 16K word Program SRAM

• 4K word Program Instruction Cache

• Architecture supports Full Rate, Enhanced Full Rate, Half Rate,and AMR

speechEncoding/Decoding Algorithms

3. Peripheral Subsystem

• Shared on-chip peripheral and off-chip interface:

• Support for Burst and Page Mode Flash•Support for Pseudo SRAM

• Ciphering module for GPRS supporting GAE1 and GAE2 encryption algorithms

• Parallel and Serial Display Interface

• 8 x 8 Keypad Interface•Four independent programmable backlight plus One Service Light

• 1.8V and 3.0V, 64 kbps SIM interface•Universal System Connector Interface

• Slow, Medium and Fast IrDA transceiver interface

• Enhanced Generic Serial Port•Dedicated SPI interface

• Thumbwheel Interface•JTAG Interface for Test and In-Circuit Emulation

4. Other

• Supports 13 MHz and 26 MHz Input Clocks

•1.8V Typical Core Operating Voltages

• 204-Ball LFBGA(mini-BGA) Package

5. Applications

• GSM900/DCS1800/PCS1900/PCS850 Wireless Terminals

• GSM Phase 2+ Compliant

• GPRS Class 12 Compliant•Multimedia Services(MMS)

• Extended Messaging System(EMS)

LG B2000 Service Manual

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