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I am using the Nexys 3 board alongside the PmodI2S - Stereo Audio Output. After reading the data sheet for this PMOD, http://www.cirrus.com/en/pubs/proDatasheet/CS4344-45-48_F2.pdf (see Table 1 on pg.12) it seems as though I have to create an abnormal clock frequency. And by abnormal I mean a clock that cannot be created using a clock divider. For example, table 1 in the data sheet suggests that I use a master clock of 22.5792MHz, but there is no such whole number (call it X) where the Nexys system clock: 100MHz/X = 22.5792MHz. So, what are my options?