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PDF MT6226 Fiche technique - MediaTek

Numéro de référence MT6226
Description GSM/GPRS Baseband Processor
Fabricant MediaTek 
Logo MediaTek Logo 

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MT6226 Datasheet, Description
MT6226 GSM/GPRS Baseband
Processor Data Sheet
Revision 1.00
Sep 16, 2005
MT6226 Fiche technique
MT6226 GSM/GPRS Baseband Processor Data Sheet Revision 1.00
TABLE OF CONTENTS
Revision History...................................................................................................................................... 2
Preface...................................................................................................................................................... 5
1. System Overview............................................................................................................................... 6
1.1 Platform Feature......................................................................................................................................................... 9
1.2 MODEM Features.....................................................................................................................................................11
1.3 Multi-Media Features............................................................................................................................................... 12
1.4 General Description ................................................................................................................................................. 14
2 Product Description........................................................................................................................ 16
2.1 Pin Outs.................................................................................................................................................................... 16
2.2 Top Marking Definition ........................................................................................................................................... 19
2.3 DC Characteristics ................................................................................................................................................... 20
2.4 Pin Description......................................................................................................................................................... 21
2.5 Power Description.................................................................................................................................................... 29
3 Micro-Controller Unit Subsystem ................................................................................................. 35
3.1 Processor Core ......................................................................................................................................................... 36
3.2 Memory Management .............................................................................................................................................. 36
3.3 Bus System............................................................................................................................................................... 39
3.4 Direct Memory Access............................................................................................................................................. 43
3.5 Interrupt Controller .................................................................................................................................................. 59
3.6 Internal Memory Interface ....................................................................................................................................... 70
3.7 External Memory Interface ...................................................................................................................................... 71
4 Microcontroller Peripherals .......................................................................................................... 79
4.1 Pulse-Width Modulation Outputs............................................................................................................................. 79
4.2 Alerter ...................................................................................................................................................................... 81
4.3 SIM Interface ........................................................................................................................................................... 84
4.4 Keypad Scanner ....................................................................................................................................................... 92
4.5 General Purpose Inputs/Outputs .............................................................................................................................. 95
4.6 General Purpose Timer........................................................................................................................................... 107
4.7 UART......................................................................................................................................................................110
4.8 IrDA Framer........................................................................................................................................................... 124
4.9 Real Time Clock .................................................................................................................................................... 131
4.10 Auxiliary ADC Unit ............................................................................................................................................... 137
4.11 I2C / SCCB ............................................................................................................................................................ 139
5 Microcontroller Coprocessors ..................................................................................................... 145
5.1 Divider ................................................................................................................................................................... 145
5.2 CSD Accelerator .................................................................................................................................................... 147
5.3 FCS Codec ............................................................................................................................................................. 157
6 Multi-Media Subsystem ............................................................................................................... 160
6.1 LCD Interface ........................................................................................................................................................ 160
6.2 JPEG Decoder........................................................................................................................................................ 176
6.3 Image Resizer......................................................................................................................................................... 187
6.4 NAND FLASH interface ....................................................................................................................................... 203
6.5 USB Device Controller .......................................................................................................................................... 219
6.6 Memory Stick and SD Memory Card Controller ................................................................................................... 228
6.7 Graphic Memory Controller................................................................................................................................... 251
6.8 2D acceleration ...................................................................................................................................................... 254
6.9 JPEG Encoder ........................................................................................................................................................ 264
3/463
MediaTek Inc. Confidential

3 Page

MT6226 pdf
MT6226 GSM/GPRS Baseband Processor Data Sheet Revision 1.00
1. System Overview
The revolutionary MT6226 is a leading edge single-chip
solution for GSM/GPRS mobile phones targeting the
emerging applications in digital audio and video. Based on
32-bit ARM7EJ-STM RISC processor, MT6226 not only
features high performance GPRS Class 12 MODEM, but
also provides comprehensive and advanced solutions for
handheld multi-media.
Typical application is shown in Figure 1.
Multi-media Subsystem
The MT6226 multi-media subsystem provides connection
to CMOS/CCD image sensor and supports resolution up to
VGA. With its advanced image signal and data processing
technology, MT6226 allows efficient processing of image
and video data. It also has built-in JPEG CODEC and
MPEG-4/H.263 CODEC, thus enabling real-time creation
and playback of high-quality images and video. In addition
to advanced image and video features, MT6226 also
utilizes high resolution DAC, digital audio, and audio
synthesis technology to provide superior audio features for
all future multi-media needs.
In order to provide more flexibility and bandwidth for
multi-media products, an additional 18-bit parallel
interface is incorporated. This interface enables connection
to LCD modules as well as connection to NAND flash
devices to allow for multi-media data storage capabilities.
External Memory Interface
Providing the greatest capacity for expansion, MT6226
supports up to 8 state-of-the-art devices through its 16-bit
host interface. Devices such as burst/page mode Flash,
page mode SRAM, Pseudo SRAM, Color/Parallel LCD,
and multi-media companion chip are all supported through
this interface. To minimize power consumption and ensure
low noise, this interface is designed for flexible I/O voltage
and allows lowering of supply voltage down to 1.8V. The
driving strength is configurable for signal integrity
adjustment. The data bus also employs retention
technology to prevent the bus from floating during turn
over.
User Interface
To provide complete user interface, MT6226 brings
together all the necessary peripheral blocks for
multi-media GSM/GPRS phone. The peripheral blocks
consists of the Keypad Scanner with the capability to
detect multiple key presses, SIM Controller, Alerter, Real
Time Clock, PWM, Serial LCD Controller, and General
Purpose Programmable I/Os. For connectivity and data
storage, the MT6226 supports UART, IrDA, USB 1.1
Slave and MMC/SD/MS/MS Pro. Furthermore, for large
amount of data transfer, high performance DMA (Direct
Memory Access) and hardware flow control are
implemented, which greatly enhances the performance and
reduces MCU processing load.
Audio Interface
Using a highly integrated mixed-signal Audio Front-End,
the MT6226 architecture allows for easy audio interfacing
with direct connection to the audio transducers. The audio
interface integrates D/A and A/D Converters for Voice
band, as well as high resolution Stereo D/A Converters for
Audio band. In addition, MT6226 also provides Stereo
Input and Analog Mux.
MT6226 supports AMR codec to adaptively optimize
speech and audio quality. Moreover, HE-AAC codec is
implemented to deliver CD-quality audio at low bit rates.
Overall, MT6226’s audio features provide a rich platform
for multi-media applications.
Radio Interface
MT6226 integrates a mixed-signal Baseband front-end in
order to provide a well-organized radio interface with
flexibility for efficient customization. It contains gain and
offset calibration mechanisms, and filters with
programmable coefficients for comprehensive
compatibility control on RF modules. This approach also
allows the usage of a high resolution D/A Converter for
controlling VCXO or crystal, thus reducing the need for
expensive TCVCXO. MT6226 achieves great MODEM
performance by utilizing 14-bit high resolution A/D
6/463
MediaTek Inc. Confidential

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