The TRCCNTVR<n> characteristics are:
This sets or returns the value of Counter <n>.
External register TRCCNTVR<n> bits [31:0] are architecturally mapped to AArch64 System register TRCCNTVR<n>[31:0].
This register is present only when FEAT_ETE is implemented and TRCIDR5.NUMCNTR > n. Otherwise, direct accesses to TRCCNTVR<n> are RES0.
TRCCNTVR<n> is a 32-bit register.
The TRCCNTVR<n> bit assignments are:
31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
RES0 | VALUE |
Reserved, RES0.
Contains the count value of Counter.
On a Trace unit reset, this field resets to an architecturally UNKNOWN value.
Must be programmed if TRCRSCTLR<a>.GROUP == 0b0010 and TRCRSCTLR<a>.COUNTERS[n] == 1.
Writes are CONSTRAINED UNPREDICTABLE if the trace unit is not in the Idle state.
Reads from this register might return an UNKNOWN value if the trace unit is not in either of the Idle or Stable states.
Component | Offset | Instance |
---|---|---|
ETE | 0x160 + (4 * n) | TRCCNTVR<n> |
This interface is accessible as follows:
30/03/2021 20:51; e3551d56dc294a4d55296a6c10544191ada08a8e
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