RES_H_IUS
OutReg(scc->ctrl,R0,RES_H_IUS); /* Reset Highest IUS */
OutReg(scc->ctrl,R0,RES_H_IUS);
writeb(RES_H_IUS, &channel->control);
writeb(RES_H_IUS, &channel->control);
write_zsreg(uap_a, R0, RES_H_IUS);
write_zsreg(uap_b, R0, RES_H_IUS);
write_zsreg(uap, R0, RES_H_IUS);
write_zsreg(uap, R0, RES_H_IUS);
writeb(RES_H_IUS, &channel->control);
writeb(RES_H_IUS, &channel->control);