1 /* if_pclreg.h 6.1 83/07/29 */ 2 3 /* 4 * DEC CSS PCL-11B Parallel Communications Interface 5 */ 6 7 struct pcldevice { 8 u_short pcl_tcr; /* Transmitter Command Register */ 9 u_short pcl_tsr; /* Transmitter Status Register */ 10 u_short pcl_tsdb; /* Transmitter Source Data Buffer */ 11 short pcl_tsbc; /* Transmitter Source Byte Count */ 12 u_short pcl_tsba; /* Transmitter Source Bus Address */ 13 u_short pcl_tmmr; /* Transmitter Master/Maint Regs */ 14 u_short pcl_tscrc; /* Transmitter Source CRC */ 15 u_short pcl_spare; 16 u_short pcl_rcr; /* Receiver Command Register */ 17 u_short pcl_rsr; /* Receiver Status Register */ 18 u_short pcl_rddb; /* Receiver Destination Data Buffer */ 19 short pcl_rdbc; /* Receiver Destination Byte Count */ 20 u_short pcl_rdba; /* Receiver Destination Bus Address */ 21 u_short pcl_rdcrc; /* Receiver Destination CRC */ 22 }; 23 24 /* Transmitter Command and Status Bits */ 25 #define PCL_STTXM (1<<0) /* Start transmission */ 26 #define PCL_TXINIT (1<<1) /* Transmitter Initialize */ 27 #define PCL_IE (1<<6) /* Interrupt Enable */ 28 #define PCL_SNDWD (1<<13) /* Send word */ 29 #define PCL_TXNPR (1<<14) /* Transmitter NPR */ 30 #define PCL_RIB (1<<15) /* Retry if busy */ 31 32 #define PCL_RESPA (3<<0) /* Response A bits (tsr & rsr) */ 33 #define PCL_RESPB (3<<2) /* Response B bits (tsr & rsr) */ 34 #define PCL_MSTDWN (1<<11) /* Master down */ 35 #define PCL_ERR (1<<15) /* Error summary */ 36 37 #define PCL_MASTER (1<<8) /* Set MASTER status */ 38 #define PCL_AUTOADDR (1<<12) /* Auto time slicing */ 39 40 /* Receiver Command and Status Bits */ 41 #define PCL_RCVDAT (1<<0) /* Receive data */ 42 #define PCL_RCINIT (1<<1) /* Receiver Initialize */ 43 #define PCL_RCVWD (1<<13) /* Receive word */ 44 #define PCL_RCNPR (1<<14) /* Receive NRP */ 45 #define PCL_REJ (1<<15) /* Reject transmission */ 46 47 #define PCL_BCOFL (1<<9) /* Byte Counter Overflow */ 48 49 #define PCL_TERRBITS "\20\20ERR\17NXL\16MEM_OFL\15TXM_ERR\14MST_DWN\13TIM_OUT\12OVERRUN\11DTI_RDY\10SUC_TXF\07BUSY\06SOREJ\05TBS_BUSY" 50 #define PCL_TCSRBITS "\20\20RIB\17TX_NPR\16SND_WD\10RD_SILO\07IE\04DTO_RDY\03INH_ADI\02TX_INIT\01START_TXM" 51 52 #define PCL_RERRBITS "\20\20ERR\17NXL\16MEM_OFL\15TXM_ERR\14PARITY\13TIM_OUT\12BC_OFL\11DTO_RDY\10SUC_TXF\07BUSY\06REJ_COMP\05CHN_OPN" 53 #define PCL_RCSRBITS "\20\20REJ\17RC_NPR\16RCV_WD\10LD_SILO\07IE\04DTI_RDY\03INH_ADI\02RC_INIT\01RCV_DAT" 54