- //###########################################################################
- //
- // FILE: DSP281x_Sci.h
- //
- // TITLE: DSP281x Device SCI Register Definitions.
- //
- //###########################################################################
- //
- // Ver | dd mmm yyyy | Who | Description of changes
- // =====|=============|======|===============================================
- // 1.00| 11 Sep 2003 | L.H. | Changes since previous version (v.58 Alpha)
- // | | | Added SCIRST bit field to SCIFFTX register
- // | | | Renamed RXERR to RXERROR to match documentation
- // | | | Renamed RXOVF_CLR to RXFFOVRCLR to match user documentation
- //###########################################################################
- #ifndef DSP281x_SCI_H
- #define DSP281x_SCI_H
- #ifdef __cplusplus
- extern "C" {
- #endif
- //---------------------------------------------------------------------------
- // SCI Individual Register Bit Definitions
- //----------------------------------------------------------
- // SCICCR communication control register bit definitions:
- //
- struct SCICCR_BITS { // bit description
- Uint16 SCICHAR:3; // 2:0 Character length control
- Uint16 ADDRIDLE_MODE:1; // 3 ADDR/IDLE Mode control
- Uint16 LOOPBKENA:1; // 4 Loop Back enable
- Uint16 PARITYENA:1; // 5 Parity enable
- Uint16 PARITY:1; // 6 Even or Odd Parity
- Uint16 STOPBITS:1; // 7 Number of Stop Bits
- Uint16 rsvd1:8; // 15:8 reserved
- };
- union SCICCR_REG {
- Uint16 all;
- struct SCICCR_BITS bit;
- };
- //-------------------------------------------
- // SCICTL1 control register 1 bit definitions:
- //
- struct SCICTL1_BITS { // bit description
- Uint16 RXENA:1; // 0 SCI receiver enable
- Uint16 TXENA:1; // 1 SCI transmitter enable
- Uint16 SLEEP:1; // 2 SCI sleep
- Uint16 TXWAKE:1; // 3 Transmitter wakeup method
- Uint16 rsvd:1; // 4 reserved
- Uint16 SWRESET:1; // 5 Software reset
- Uint16 RXERRINTENA:1; // 6 Recieve interrupt enable
- Uint16 rsvd1:9; // 15:7 reserved
- };
- union SCICTL1_REG {
- Uint16 all;
- struct SCICTL1_BITS bit;
- };
- //---------------------------------------------
- // SCICTL2 control register 2 bit definitions:
- //
- struct SCICTL2_BITS { // bit description
- Uint16 TXINTENA:1; // 0 Transmit interrupt enable
- Uint16 RXBKINTENA:1; // 1 Receiver-buffer break enable
- Uint16 rsvd:4; // 5:2 reserved
- Uint16 TXEMPTY:1; // 6 Transmitter empty flag
- Uint16 TXRDY:1; // 7 Transmitter ready flag
- Uint16 rsvd1:8; // 15:8 reserved
- };
- union SCICTL2_REG {
- Uint16 all;
- struct SCICTL2_BITS bit;
- };
- //---------------------------------------------------
- // SCIRXST Receiver status register bit definitions:
- //
- struct SCIRXST_BITS { // bit description
- Uint16 rsvd:1; // 0 reserved
- Uint16 RXWAKE:1; // 1 Receiver wakeup detect flag
- Uint16 PE:1; // 2 Parity error flag
- Uint16 OE:1; // 3 Overrun error flag
- Uint16 FE:1; // 4 Framing error flag
- Uint16 BRKDT:1; // 5 Break-detect flag
- Uint16 RXRDY:1; // 6 Receiver ready flag
- Uint16 RXERROR:1; // 7 Receiver error flag
- };
- union SCIRXST_REG {
- Uint16 all;
- struct SCIRXST_BITS bit;
- };
- //----------------------------------------------------
- // SCIRXBUF Receiver Data Buffer with FIFO bit definitions:
- //
- struct SCIRXBUF_BITS { // bits description
- Uint16 RXDT:8; // 7:0 Receive word
- Uint16 rsvd:6; // 13:8 reserved
- Uint16 SCIFFPE:1; // 14 SCI PE error in FIFO mode
- Uint16 SCIFFFE:1; // 15 SCI FE error in FIFO mode
- };
- union SCIRXBUF_REG {
- Uint16 all;
- struct SCIRXBUF_BITS bit;
- };
- //--------------------------------------------------
- // SCIPRI Priority control register bit definitions:
- //
- //
- struct SCIPRI_BITS { // bit description
- Uint16 rsvd:3; // 2:0 reserved
- Uint16 FREE:1; // 3 Free emulation suspend mode
- Uint16 SOFT:1; // 4 Soft emulation suspend mode
- Uint16 rsvd1:3; // 7:5 reserved
- };
- union SCIPRI_REG {
- Uint16 all;
- struct SCIPRI_BITS bit;
- };
- //-------------------------------------------------
- // SCI FIFO Transmit register bit definitions:
- //
- //
- struct SCIFFTX_BITS { // bit description
- Uint16 TXFFILIL:5; // 4:0 Interrupt level
- Uint16 TXFFIENA:1; // 5 Interrupt enable
- Uint16 TXINTCLR:1; // 6 Clear INT flag
- Uint16 TXFFINT:1; // 7 INT flag
- Uint16 TXFFST:5; // 12:8 FIFO status
- Uint16 TXFIFOXRESET:1; // 13 FIFO reset
- Uint16 SCIFFENA:1; // 14 Enhancement enable
- Uint16 SCIRST:1; // 15 SCI reset rx/tx channels
- };
- union SCIFFTX_REG {
- Uint16 all;
- struct SCIFFTX_BITS bit;
- };
- //------------------------------------------------
- // SCI FIFO recieve register bit definitions:
- //
- //
- struct SCIFFRX_BITS { // bits description
- Uint16 RXFFIL:5; // 4:0 Interrupt level
- Uint16 RXFFIENA:1; // 5 Interrupt enable
- Uint16 RXFFINTCLR:1; // 6 Clear INT flag
- Uint16 RXFFINT:1; // 7 INT flag
- Uint16 RXFIFST:5; // 12:8 FIFO status
- Uint16 RXFIFORESET:1; // 13 FIFO reset
- Uint16 RXFFOVRCLR:1; // 14 Clear overflow
- Uint16 RXFFOVF:1; // 15 FIFO overflow
- };
- union SCIFFRX_REG {
- Uint16 all;
- struct SCIFFRX_BITS bit;
- };
- // SCI FIFO control register bit definitions:
- struct SCIFFCT_BITS { // bits description
- Uint16 FFTXDLY:8; // 7:0 FIFO transmit delay
- Uint16 rsvd:5; // 12:8 reserved
- Uint16 CDC:1; // 13 Auto baud mode enable
- Uint16 ABDCLR:1; // 14 Auto baud clear
- Uint16 ABD:1; // 15 Auto baud detect
- };
- union SCIFFCT_REG {
- Uint16 all;
- struct SCIFFCT_BITS bit;
- };
- //---------------------------------------------------------------------------
- // SCI Register File:
- //
- struct SCI_REGS {
- union SCICCR_REG SCICCR; // Communications control register
- union SCICTL1_REG SCICTL1; // Control register 1
- Uint16 SCIHBAUD; // Baud rate (high) register
- Uint16 SCILBAUD; // Baud rate (low) register
- union SCICTL2_REG SCICTL2; // Control register 2
- union SCIRXST_REG SCIRXST; // Recieve status register
- Uint16 SCIRXEMU; // Recieve emulation buffer register
- union SCIRXBUF_REG SCIRXBUF; // Recieve data buffer
- Uint16 rsvd1; // reserved
- Uint16 SCITXBUF; // Transmit data buffer
- union SCIFFTX_REG SCIFFTX; // FIFO transmit register
- union SCIFFRX_REG SCIFFRX; // FIFO recieve register
- union SCIFFCT_REG SCIFFCT; // FIFO control register
- Uint16 rsvd2; // reserved
- Uint16 rsvd3; // reserved
- union SCIPRI_REG SCIPRI; // FIFO Priority control
- };
- //---------------------------------------------------------------------------
- // SCI External References & Function Declarations:
- //
- extern volatile struct SCI_REGS SciaRegs;
- extern volatile struct SCI_REGS ScibRegs;
- #ifdef __cplusplus
- }
- #endif /* extern "C" */
- #endif // end of DSP281x_SCI_H definition
- //===========================================================================
- // No more.
- //===========================================================================