_UTSR1
#define Ser1UTSR1 _UTSR1 (1) /* Ser. port 1 UART Status Reg. 1 */
#define Ser2UTSR1 _UTSR1 (2) /* Ser. port 2 UART Status Reg. 1 */
#define Ser3UTSR1 _UTSR1 (3) /* Ser. port 3 UART Status Reg. 1 */
