(note: this PLL does not have a secondary output)
the primary output is driven from VCO divided by postdiv1*postdiv2
POSTDIV1
reader - divide by 1-7POSTDIV1
writer - divide by 1-7POSTDIV2
reader - divide by 1-7POSTDIV2
writer - divide by 1-7PRIM
readerPRIM
writer