I am using TMS320C6657LS evm and I want to configure the EMAC module to work on full duplex mode. According to <SPRUHH1 Ethernet Media Access Controller (EMAC)/Management Data Input/Output (MDIO) user guide>P178: refclk = LINERATE * RATESCALE/MPY, thus MPY = LINERATE * RATESCALE/refclk . I have noted that the refclk is 250MHz as shown in C6657EVM shematic document, and RATESCALE = 0.5(as table 6-4 shows) , LINERATE =1.25G, so the value of MPY is 2.5, not in the range 4~25！
I am confused about this and what's wrong with it?
thank for your reply