SPNS141G August 2010 – October 2018 TMS570LS10106 , TMS570LS10116 , TMS570LS10206 , TMS570LS20206 , TMS570LS20216
PRODUCTION DATA.
Refer to the PDF data sheet for device specific package drawings
The LPOCLKDET module consists of a clock monitor (CLKDET) and 2 low power oscillators (LPO) - a low frequency (LF) and a high frequency (HF) oscillator. The CLKDET is a supervisor circuit for an externally supplied clock signal. In case the externally supplied clock frequency falls out of a frequency window, the clock detector flags this condition and switches to the HF LPO clock (limp mode). The OSCFAIL flag and clock switch-over remain, regardless of the behavior of the oscillator clock signal. The only way OSCFAIL can be cleared (and re-enable OSCIN as the clock source) is a power-on-reset.
Parameter | MIN | Type | MAX | Unit | |
---|---|---|---|---|---|
Invalid frequency | lower threshold | 1.5 | 5 | MHz | |
upper threshold | 20 | 50 | MHz | ||
Limp mode frequency (HFosc) | 7.9 | 10 | 14.4 | MHz | |
HFosc frequency | 7.9 | 10 | 14.4 | MHz | |
LFosc frequency | 62 | 80 | 113 | kHz |