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The RAM Read Pointer High register contains address bits >= bit of the read pointer that is used to read entries from trace memory over the APB interface.
The RRPHI register characteristics are:
The following figure shows the bit assignments.
The following table shows the bit assignments.
Table 9-388 RRPHI register bit assignments
Read-As-Zero, Writes Ignored.
RAM Read Pointer High. Bits  and above of the RAM read pointer.