TCR51_TIA
ti[0] = __SHIFTOUT(gen->tcr, TCR51_TIA);
__SHIFTIN(LA2L_L1_NBITS, TCR51_TIA) | \
__SHIFTIN(LA40_L1_NBITS, TCR51_TIA) | \
__SHIFTIN(TIA_SHIFT, TCR51_TIA) | \