ZSWR15_DCD_IE
cs->cs_preg[15] = ZSWR15_BREAK_IE | ZSWR15_DCD_IE;
if ((cs->cs_creg[15] & ZSWR15_DCD_IE) != 0)
cs->cs_preg[15] &= ~ZSWR15_DCD_IE; /* turn off dcd */
cs->cs_creg[15] &= ~ZSWR15_DCD_IE;
cs->cs_preg[15] |= ZSWR15_DCD_IE; /* turn on dcd */
cs->cs_creg[15] |= ZSWR15_DCD_IE;
cs->cs_preg[15] &= ~ZSWR15_DCD_IE;
cs->cs_preg[15] |= ZSWR15_DCD_IE;
ZSWR15_BREAK_IE | ZSWR15_DCD_IE,
SET(tmp15, ZSWR15_DCD_IE);
CLR(tmp15, ZSWR15_DCD_IE);
cs->cs_creg[15] |= ZSWR15_DCD_IE;
cs->cs_preg[15] |= ZSWR15_DCD_IE;