3.19.4. Current Counter Value Upper register, CNTCVU

The CNTCVU register characteristics are:

Purpose

Reads or writes the upper 32 bits of the current counter value.

Usage constraints

The read-only programming interface can read but not write this register. The control interface must clear the CNTCR.EN bit before writing to this register.

Attributes

See the register summary in Table 3.246.

Figure 3.225 shows the bit assignments.

Figure 3.225. CNTCUV register bit assignments

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Table 3.250 shows the bit assignments.

Table 3.250. CNTCUV register bit assignments

BitsNameFunction
[31:0]CNTCVU_U_32Current value of the timestamp counter, upper 32 bits. To change the current timestamp value, write the lower 32 bits of the new value to CNTCVL before writing the upper 32 bits to this register. The 64-bit timestamp value is updated with the value from both writes when this register is written to.

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