MT6225A Просмотр технического описания (PDF) - MediaTek Inc

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MT6225A

GSM/GPRS Baseband Processor

MediaTek Inc 

MT6225 GSM/GPRS Baseband Processor Data Sheet Revision 1.00

6.6 Graphic Memory Controller................................................................................................................................ 255

6.7 Camera Interface .................................................................................................................................................... 257

7 Audio Front-End........................................................................................................................... 268

7.1 General Description ............................................................................................................................................... 268

7.2 Register Definitions ............................................................................................................................................... 271

7.3 Programming Guide............................................................................................................................................... 275

8 Radio Interface Control ............................................................................................................... 277

8.1 Baseband Serial Interface....................................................................................................................................... 277

8.2 Baseband Parallel Interface.................................................................................................................................... 282

8.3 Automatic Power Control (APC) Unit ................................................................................................................... 285

8.4 Automatic Frequency Control (AFC) Unit ............................................................................................................ 291

9 Baseband Front End..................................................................................................................... 294

9.1 Baseband Serial Ports............................................................................................................................................. 295

9.2 Downlink Path (RX Path) ...................................................................................................................................... 298

9.3 Uplink Path (TX Path) ........................................................................................................................................... 307

10 Timing Generator ......................................................................................................................... 311

10.1 TDMA timer............................................................................................................................................................311

10.2 Slow Clocking Unit................................................................................................................................................ 318

11 Power, Clocks and Reset .............................................................................................................. 321

11.1 B2PSI ..................................................................................................................................................................... 321

11.2 Clocks .................................................................................................................................................................... 323

11.3 Reset Generation Unit (RGU) ................................................................................................................................ 328

11.4 Software Power Down Control .............................................................................................................................. 332

12 Analog Front-end & Analog Blocks ............................................................................................ 336

12.1 General Description ............................................................................................................................................... 336

12.2 MCU Register Definitions ..................................................................................................................................... 347

12.3 Programming Guide............................................................................................................................................... 361

13 Digital Pin Electrical Characteristics.......................................................................................... 373

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