With the ADF4350 or ADF4360 serial data interface, what is the function of LE when logic high? The data sheet says "When LE goes high, the data stored in the shift registers is loaded into one of the four latches". This is ambiguous. I need to know - is the data latched on the rising EDGE of LE, and thus the latched data will not change whilst LE is either low or high? Or the the data latched when LE is high, thus the latched data might change whilst LE is high and serial data input is clocked?