9 RAM Read Pointer register, RRP

The RAM Read Pointer Register contains the value of the read pointer that is used to read entries from trace memory over the APB interface. Software must program it before enabling trace capture.

The RRP register characteristics are:

Attributes
Offset

0x0014

Type

Read-write

Reset

0x--------

Width

32

The following figure shows the bit assignments.

Figure 9-366 RRP register bit assignments
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The following table shows the bit assignments.

Table 9-379 RRP register bit assignments

Bits Reset value Name Function
[31:0] UNKNOWN RRP

When the AXI_ADDR_WIDTHis 32 bits or more, the RRP register is 32 bits wide and the contents of this register represents the lower 32 bits of the AXI address that is used to access trace memory on the next RRD read. When the AXI_ADDR_WIDTHis 0, this register is reserved and access type is RAZ/WI.

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