9 RAM Write Pointer register, RWP

RAM Write Pointer Register sets the write pointer that is used to write entries into the trace memory. Software must program it before enabling trace capture.

The RWP register characteristics are:

Attributes
Offset

0x0018

Type

Read-write

Reset

0x--------

Width

32

The following figure shows the bit assignments.

Figure 9-367 RWP register bit assignments
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The following table shows the bit assignments.

Table 9-380 RWP register bit assignments

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

When the AXI_ADDR_WIDTHis 32 bits or more, the RWP 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 RWD write. When the AXI_ADDR_WIDTHis 0, this register is reserved and access type is RAZ/WI.

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