FE_DLCR0
tstat = bus_space_read_1(bst, bsh, FE_DLCR0) & FE_TMASK;
bus_space_write_1(bst, bsh, FE_DLCR0, tstat);
tstat = bus_space_read_1(bst, bsh, FE_DLCR0) & FE_TMASK;
bus_space_read_1(bst, bsh, FE_DLCR0),
bus_space_write_1(bst, bsh, FE_DLCR0, 0xFF);
bus_space_write_1(bst, bsh, FE_DLCR0, 0xFF); /* Clear all bits. */
bus_space_write_1(bst, bsh, FE_DLCR0, 0xFF); /* Clear all bits. */
bus_space_write_1(bst, bsh, FE_DLCR0, FE_D0_COLLID);
if (bus_space_read_1(bst, bsh, FE_DLCR0) & FE_D0_COLLID) {
bus_space_write_1(bst, bsh, FE_DLCR0, FE_D0_COLLID);