AUX0_SEL_SDP3
AUX0_SEL_SDP0, AUX0_SEL_SDP1, AUX0_SEL_SDP2, AUX0_SEL_SDP3,
tssdp &= ~AUX0_SEL_SDP3;
AUX0_SEL_SDP0, AUX0_SEL_SDP1, AUX0_SEL_SDP2, AUX0_SEL_SDP3,
if ((tssdp & AUX0_SEL_SDP3) == aux0_sel_sdp[pin])