1.7 General Descriptions
Figure 2Error! Reference source not found. is
the block diagram of MT6260. Based on a
multi-processor architecture, MT6260 integrates
an ARM7EJ-STM core, the main processor
running high-level GSM/EDGE-Rx protocol
software as well as multimedia applications,
single digital signal processor core, which
manages the low-level MODEM and advanced
audio functions, an embedded processor
running Bluetooth baseband and link control
protocol and the Bluetooth radio control.
MT6260 consists of the following subsystems:
Microcontroller Unit (MCU) subsystem:
Includes an ARM7EJ-STM RISC processor
and its accompanying memory
management and interrupt handling logics
Digital Signal Processor (DSP) subsystem:
Includes a DSP and its accompanying
memory, memory controller and interrupt
controller
MCU/DSP interface: Junction at which the
MCU and the DSP exchange hardware and
software information
Microcontroller peripherals: Include all user
interface modules and RF control interface
modules
Microcontroller coprocessors: Run
computing-intensive processes in place of
the microcontroller
DSP peripherals: Hardware accelerators for
GSM/GPRS/EDGE-Rx channel codec
Multimedia subsystem: Integrates several
advanced accelerators to support
multimedia applications
Voice front-end: Data path for converting
analog speech to and from digital speech
Audio front-end: Data path for converting
stereo audio from an audio source
Baseband front-end: Data path for
converting a digital signal to and from an
analog signal from the RF modules
Timing generator: Generates the control
signals related to the TDMA frame timing
Power, reset and clock subsystem: Manage
the power, reset and clock distribution
inside MT6260.
Bluetooth subsystem: Includes an
embedded processor with embedded
ROM/RAM system, baseband processor,
and a high-performance radio block
Power management unit: Self-contained
power supply source which also controls
the charging and system startup circuitry.
Details of the individual subsystems and blocks
are described in the following chapters.
Free Datasheet http://www.datasheet4u.com/
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