LG KE990 Service Manual - Page 31
EDGE features, 6.5 ESM6270 device audio processing features, 6.6 ESM6270 microprocessor
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3. TECHNICAL BRIEF 3.6.4 EDGE features ■ EDGE E2 power class for 8 PSK ■ DTM (simple Class A), multi-slot class 12 ■ Downlink coding schemes - CS 1-4, MCS 1-9 ■ Uplink coding schemes - CS 1-4, MCS 1-9 ■ BEP reporting ■ SRB loopback and test mode B ■ 8-bit, 11-bit RACH ■ PBCCH support ■ 1phase/2 phase access procedures ■ Link adaptation and IR ■ NACC, extended UL TBF. 3.6.5 ESM6270 device audio processing features ■ Integrated wideband stereo CODEC ❏ 16-bit DAC with typical 88 dB dynamic range ❏ Supports sampling rates up to 48 kHz on the speaker path and 16 kHz on the microphone path ■ VR- Voice mail + voice memo ■ Acoustic echo cancellation ■ Audio AGC ■ Audio Codecs: AMR-NB, AAC, AAC Plus, Enhanced AAC Plus, Windows Audio v9, Real Audio 8 (G2) ■ Internal vocoder supporting AMR, FR, EFR, and HR 3.6.6 ESM6270 microprocessor subsystem ■ Industry standard ARM926EJ-S embedded microprocessor subsystem ❏ 16 kB instruction and 16 kB data cache ❏ Instruction set compatible with ARM7TDMI® ❏ ARM version 5TEJ instructions ❏ Higher performance 5 stage pipeline, Harvard cached architecture ❏ Higher internal CPU clock rate with on-chip cache ■ Java hardware acceleration ■ Enhanced memory support Please note that NOR/PSRAM will not be supported on ESM6270. ❏ 75 MHz and 90 MHz bus clock for SDRAM ❏ 32-bit SDRAM ❏ Dual memory buses separating the high-speed memory subsystem (EBI1) from low-speed ❏ peripherals (EBI2) such as LCD panels ❏ 1.8 V or 2.6 V memory interface support (excluding EBI1) LGE Internal Use Only - 32 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes