MT6253 » History » Version 3
Anonymous, 02/19/2016 10:49 PM
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| 2 | 3 | h1. Mediatek MT6253 |
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| 5 | 1 | The Mediatek MT6253 is a relatively modern baseband SoC made by Taiwan-based Mediatek. |
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| 7 | 3 | It inherits a lot from the older series of MT622x [[SoCs]], but provides 2 DSP cores, RF module and power management block on the chip. |
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| 9 | The chip uses different addresses for periph. bus compared to it's predecessors. |
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| 11 | 2 | 2G RF "chip" is called MTKSOC1 (connected directly to BSI). |
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| 14 | 3 | h2. ROM Bootloader |
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| 16 | 3 | ||
| 17 | The chip contains ROM bootloader similar to [[MT6253]]. |
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| 19 | 1 | In order to keep the chip powered-on, PMIC registers need to be set-up properly. |
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| 22 | 3 | h2. DSP communication |
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| 24 | 3 | Baseband communication is handled by DSP #1424. |
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| 26 | 3 | ||
| 27 | h3. DSP initialization |
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| 30 | * Power ON DSP |
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| 31 | * Wait |
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| 32 | * Install patch data |
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| 33 | * Write some data via IDMA |
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| 34 | * Wait for correct data in DSP1_SharedMem |
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| 36 | 1 | Communication between ARM and DSP is carried via DSP1 Shared memory region and DSP1 shared registers. Initialization uses also IDMA. |
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| 38 | 3 | ||
| 39 | h2. Usage in mobile phones |
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| 41 | * http://www.aligator.cz/produkty/aligator-a800 |
