IX_NPEDL_REG_OFFSET_WC
oldWatchcount = npe_reg_read(sc, IX_NPEDL_REG_OFFSET_WC);
newWatchcount = npe_reg_read(sc, IX_NPEDL_REG_OFFSET_WC);
newWatchcount = npe_reg_read(sc, IX_NPEDL_REG_OFFSET_WC);
npe_reg_write(sc, IX_NPEDL_REG_OFFSET_WC, 0);