Cpu:allwinner/a10: Difference between revisions

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   ___________              ___________              ___________                ____________
   ___________              ___________              ___________                ____________
  |          |  AXI Div  |          |  AHB Div  |          |  APB0 Div  |            |
  |          |  AXI Div  |          |  AHB Div  |          |  APB0 Div  |            |
  | CPU clock |------------>| AXI clock |------------>| AXI clock |------------->| APB0 clock |
  | CPU clock |------------>| AXI clock |------------>| AHB clock |------------->| APB0 clock |
  |___________|  1,2,3,4  |___________|  1,2,4,8  |___________|  2,2,4,8    |____________|
  |           |  1,2,3,4  | 350M max  |  1,2,4,8  | 250M max  |  2,2,4,8    |  150M max  |
|___________|            |___________|            |___________|              |____________|
 
=== Notes ===
 
* APB1 clock is sourced independently, unlike APB0, which is derived from AHB clock

Latest revision as of 02:09, 11 January 2014

This is meant as a quick might-need-to-know page for Allwinner A10 (and potentially A13 and later) SoCs

Clock structure

 ___________               ___________               ___________                ____________
|           |   AXI Div   |           |   AHB Div   |           |   APB0 Div   |            |
| CPU clock |------------>| AXI clock |------------>| AHB clock |------------->| APB0 clock |
|           |   1,2,3,4   | 350M max  |   1,2,4,8   | 250M max  |   2,2,4,8    |  150M max  |
|___________|             |___________|             |___________|              |____________|

Notes

  • APB1 clock is sourced independently, unlike APB0, which is derived from AHB clock