Timer Counter

The timer counter has an EVENT input and a PPS output. EVENT can be input via PIO11, PIO13 or PIO14, but only one EVENT can be input at a time. Event input is the external timestamp event relative to GPS time.

EVENT function is disabled by default. Please contact Unicore FAE if necessary.

PPS can be output via PIO11. PPS outputs pulse sequence synchronized with GPS or UTC time grid, and the time interval can be configured over a wide range of frequency.

All input and output signals are synchronized with the internal clock frequency of the receiver, so that the inherent maximum quantization error of the input and output signals reaches ±10 ns.