2.1.1. APB3 interface

You can access the configuration and control registers of the DMC-400 through its APB3 interface. Use these registers for:

The APB3 interface address map has a range of 4KB. You can use it to access the DMC-400 control registers. The address map is split into regions. Table 2.1 shows the function of each region.

Table 2.1. APB3 register regions

Region base addressRegion function
0x000Memory controller configuration
0x100Memory channel configuration
0x200PHY control
0x300Timing configuration
0x400User configuration
0xE00Integration test
0xF00Peripheral ID

See the AMBA 3 APB Protocol Specification. Also see Appendix A Signal Descriptions.

Note

The DMC-400 responds with a PSLVERR error response when the APB master does any of the following:

  • requests a read access to either a RO register or a RW register when the DMC-400 is in a state where this is not allowed

  • requests a write access to either a WO register or a RW register when the DMC-400 is in a state where this is not allowed

  • requests the DMC to perform an illegal state transition.

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