FM_STEFRMS
stu &= ~ (FM_STECFRMA0 | FM_STEFRMA0 | FM_STEFRMS) ;
FM_STEFRMS)) { /* end of sync tx */
outpw(FM_A(FM_IMSK1U),~(imask|FM_STEFRMS)) ;
outpw(FM_A(FM_IMSK1U),~(imask&~FM_STEFRMS)) ;