TCAM_CTL
if (nr64(TCAM_CTL) & bit)
nw64(TCAM_CTL, (TCAM_CTL_RWC_TCAM_WRITE | index));
nw64(TCAM_CTL, (TCAM_CTL_RWC_TCAM_READ | index));
nw64(TCAM_CTL, (TCAM_CTL_RWC_TCAM_WRITE | index));
nw64(TCAM_CTL, (TCAM_CTL_RWC_RAM_READ | index));
nw64(TCAM_CTL, (TCAM_CTL_RWC_RAM_WRITE | index));