JAJSMU1 February 2023 DS90UB638-Q1
PRODUCTION DATA
BIT | FIELD | TYPE | DEFAULT | DESCRIPTION |
---|---|---|---|---|
7:6 | FREQ_HYST | RW | 0x3 | Frequency Detect Hysteresis The Frequency detect hysteresis setting allows ignoring minor fluctuations in frequency. A new frequency measurement will be captured only if the measured frequency differs from the current measured frequency by more than the FREQ_HYST setting. The FREQ_HYST setting is in MHz. |
5:4 | FREQ_STABLE_THR | RW | 0x0 | Frequency Stable Threshold The Frequency detect circuit can be used to detect a stable clock frequency. The Stability Threshold determines the amount of time required for the clock frequency to stay within the FREQ_HYST range to be considered stable: 00 : 40 µs 01 : 80 µs 10 : 320 µs 11 : 1.28 ms |
3:0 | FREQ_LO_THR | RW | 0x5 | Frequency Low Threshold Sets the low threshold for the Clock frequency detect circuit in MHz. This value is used to determine if the clock frequency is too low for proper operation. |