Bit7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
TUNE[7:0] | |||||||
AccessR/W | R/W | R/W | R/W | R/W | R/W | R/W | R/W |
Reset0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
User Frequency Tuning
This bit field controls the manual tuning of the output frequency of the internal high-frequency oscillator (OSCHF). The frequency can be tuned 32 steps down or 31 steps up from the oscillator’s target frequency. Thus, the register’s acceptable input value range is -32 to +31.
Writing to bits 6 and 7 has no effect, as bit 5 will be mirrored to bits 6 and 7 due to the 6-bit value in this bit field being represented in a signed (two’s complement) form.