PCXHR_XLX_CFG
PCXHR_OUTPB(mgr, PCXHR_XLX_CFG, mgr->xlx_cfg);
ticks = (unsigned int)PCXHR_INPB(mgr, PCXHR_XLX_CFG);
PCXHR_OUTPB(chip->mgr, PCXHR_XLX_CFG, chip->mgr->xlx_cfg);