3.1 About this programmers model

This section provides general information about SDC-600 register properties.

The following information applies to Arm registers:

The programmer’s models of the External and Internal APBCOMs are the same. Only the relevant capability registers have different content according to what features are required on each side.


The ITSTATUS and ITCTRL registers are used for the abort functionality and are therefore not implemented on the Internal APBCOM.

SDC-600 implements one-deep FIFOs in both Tx and Rx directions, which simplifies its programmer’s model and behavior.

The control and status registers are slightly different for each External variant:

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