CSR_UNEXP
case CSR_UNEXP | PHS_MESS_OUT:
sr == (CSR_UNEXP | PHS_MESS_IN) ||
case CSR_UNEXP | PHS_DATA_IN:
case CSR_UNEXP | PHS_DATA_OUT:
case CSR_UNEXP | PHS_COMMAND:
case CSR_UNEXP | PHS_STATUS:
case CSR_UNEXP | PHS_MESS_IN: