+
+ subi zl,low(SSER_BIT_TC) ; stop bit?
+ sbci zh,high(SSER_BIT_TC)
+ brcc srxi_1fe
+ rjmp srxi_complete0 ; ok, x00 (^@) received
+srxi_1fe:
+ sts srx_char_to,_0 ; no stop bit --> framing error --> break
+ sts srx_state,_0
+ sbr intstat,(1<<i_break) ;
+ sts rxcount,_0 ;clear rx buffer
+ sts rxidx_w,_0
+ sts rxidx_r,_0
+
+ rjmp srxi_end
+