FLY SP-770, Как в инструкции

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-Support AAC codec decode
-Wavetable synthesis with up to 64 tones
-Advanced wavetable synthesizer capable of generating simulated stereo
-Wavetable including GM full set of 128 instruments and 47 sets ofpercussions
-PCM Playback and Record
-Digital Audio Playback
2.4.12 Audio Interface and Audio Front End
-Supports I2S interface
-High resolution D/A Converters for Stereo Audio playback
-Stereo analog input for stereo audio source
-Analog multiplexer for Stereo Audio
-Stereo to Mono Conversion
2.5 General Description
Figure 2 details the block diagram of MT6228. Based on a dual-processor architecture,
MT6228 integrates both an ARM7EJ-S core and a digital signal processor core.
ARM7EJ-S is the main processor that is responsible for running high-level GSM/GPRS
protocol software as well as multi-media applications. The digital signal processor
handles the low-level MODEM as well as advanced audio functions. Except for some
mixed-signal circuitries, the other building blocks in MT6228 are connected to either
the microcontroller or the digital signal processor.
Specifically, MT6228 consists of the following subsystems:
-Microcontroller Unit (MCU) Subsystem - includes and ARM7EJ-S RISC processor and
its accompanying memory management and interrupt handling logics.
-Digital Sinal Processor (DSP) Subsystem - includes a DSP and its accompanying
memory, memory controller, and interrupt controller.
-MCU/DSP Interface - where the MCU and the DSP exchange hardware and software
information.
-Microcontroller Peripherals - includes all user interface modules and RF control
interface modules.
-Microcontroller Coprocessors - runs computing-intensive processes in place of
Microcontroller.
-DSP Peripherals - hardware accelerators for GSM/GPRS channel codec.
-Multi-media Subsystem - integrates several advanced accelerators to support multi-
media applications.
-Voice Front End - the data path for converting analog speech from and to digital
speech.
-Audio Front End - the data path for converting stereo audio from stereo audio source
-Video Front End - the data path for converting video signal to NTSL/PAL format.
-Baseband Front End - the data path for converting digital signal from and to analog
signal of RF modules.
-Timing Generator-generates the control signals related to the TDMA frame timing.