CLKM | I | Primary crystal or oscillator reference clock input, negative input | U1 | N1 |
CLKP | I | Primary crystal or oscillator reference clock input, positive input | V1 | P1 |
XREF_CLK0 | IO | External reference clock input 0 | J1 | G1 |
XREF_CLK1 | IO | External reference clock input 1 | K2 | G2 |