CPU Timing Model

Project Panel | CPU pop-up menu | View CPU Timing Model

This window presents the schematic structure of the target CPU timing stored in the database of Processor Expert.

More details on individual items are available as hints after the mouse cursor is placed on the item's name. The displayed prescaler values are automatically set after the reset for enabled devices.

Click plus "+" or minus "-" signs to expand or collapse the branches of the tree.

The values of all prescalers are for high speed mode. For details on speed modes please see chapter Speed modes.

Some of the devices (prescalers) can select the source of its clock from multiple sources. Only one of the sources can be active at one time - this active branch is marked with green check-mark (). The items with gray cross () with the same name represent the inactive branches. For example see the RTIJoin prescaler on the figure below.

The window can operate in two modes according to the CLOCK field setting:

  • From CPU clock source to individual peripherals
    The prescalers and clock-driven CPU devices are ordered in a tree structure, starting with the main branch which represents the main clock source (PLL, X-tal etc...).

     

    Figure 1 - CPU Timing Model Window

  • From selected peripheral to CPU clock source
    The selected peripheral is the root of a tree showing the current sequence of the prescalers form the device to the main clock source. Each sub-node represents a source of the clock used for its parent.

     

    Figure 2 - CPU Timing Of Selected Peripheral

 

 


 

 

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