FN_SCIFA1_SCK
FN_SCK1, FN_SCIFA1_SCK, FN_DU2_DR6, FN_LCDOUT6,
FN_SCIFA1_SCK, FN_SSI_SCK78_B,
FN_D13, FN_SCIFA1_SCK, FN_PWM2_C, FN_TCLK2_B,