LG KG920, Service Manual

Page: 30 / 195

3. TECHNICAL BRIEF
- 31 -
• 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 Mbits of 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 Speech
Encoding/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)