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[/] [usbhostslave/] [tags/] [rel_00_04_alpha/] [RTL/] [serialInterfaceEngine/] [SIETransmitter.v] - Rev 2
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//-------------------------------------------------------------------------------------------------- // // Title : No Title // Design : usbhostslave // Author : Steve // Company : Base2Designs // //------------------------------------------------------------------------------------------------- // // File : c:\projects\USBHostSlave\Aldec\usbhostslave\usbhostslave\compile\SIETransmitter.v // Generated : 09/27/04 21:05:15 // From : c:\projects\USBHostSlave\RTL\serialInterfaceEngine\SIETransmitter.asf // By : FSM2VHDL ver. 4.0.5.2 // //------------------------------------------------------------------------------------------------- // // Description : // //------------------------------------------------------------------------------------------------- `timescale 1ns / 1ps `include "usbSerialInterfaceEngine_h.v" `include "usbConstants_h.v" module SIETransmitter (CRC16En, CRC16Result, CRC16UpdateRdy, CRC5En, CRC5Result, CRC5UpdateRdy, CRC5_8Bit, CRCData, JBit, KBit, SIEPortCtrlIn, SIEPortDataIn, SIEPortTxRdy, SIEPortWEn, TxByteOutCtrl, TxByteOut, USBWireCtrl, USBWireData, USBWireGnt, USBWireRdy, USBWireReq, USBWireWEn, clk, processTxByteRdy, processTxByteWEn, rst, rstCRC); input [15:0] CRC16Result; input CRC16UpdateRdy; input [4:0] CRC5Result; input CRC5UpdateRdy; input [1:0] JBit; input [1:0] KBit; input [7:0] SIEPortCtrlIn; input [7:0] SIEPortDataIn; input SIEPortWEn; input USBWireGnt; input USBWireRdy; input clk; input processTxByteRdy; input rst; output CRC16En; output CRC5En; output CRC5_8Bit; output [7:0] CRCData; output SIEPortTxRdy; output [7:0] TxByteOutCtrl; output [7:0] TxByteOut; output USBWireCtrl; output [1:0] USBWireData; output USBWireReq; output USBWireWEn; output processTxByteWEn; output rstCRC; reg CRC16En, next_CRC16En; wire [15:0] CRC16Result; wire CRC16UpdateRdy; reg CRC5En, next_CRC5En; wire [4:0] CRC5Result; wire CRC5UpdateRdy; reg CRC5_8Bit, next_CRC5_8Bit; reg [7:0] CRCData, next_CRCData; wire [1:0] JBit; wire [1:0] KBit; wire [7:0] SIEPortCtrlIn; wire [7:0] SIEPortDataIn; reg SIEPortTxRdy, next_SIEPortTxRdy; wire SIEPortWEn; reg [7:0] TxByteOutCtrl, next_TxByteOutCtrl; reg [7:0] TxByteOut, next_TxByteOut; reg USBWireCtrl, next_USBWireCtrl; reg [1:0] USBWireData, next_USBWireData; wire USBWireGnt; wire USBWireRdy; reg USBWireReq, next_USBWireReq; reg USBWireWEn, next_USBWireWEn; wire clk; wire processTxByteRdy; reg processTxByteWEn, next_processTxByteWEn; wire rst; reg rstCRC, next_rstCRC; // diagram signals declarations reg [7:0]SIEPortCtrl, next_SIEPortCtrl; reg [7:0]SIEPortData, next_SIEPortData; reg [4:0]i, next_i; // BINARY ENCODED state machine: SIETx // State codes definitions: `define RES_ST_CHK_FIN 6'b000000 `define IDLE_CHK_FIN 6'b000001 `define DIR_CTL_CHK_FIN 6'b000010 `define PKT_ST_CHK_PID 6'b000011 `define PKT_ST_DATA_DATA_CHK_STOP 6'b000100 `define PKT_ST_SPCL_PKT_SENT 6'b000101 `define PKT_ST_TKN_CRC_PKT_SENT 6'b000110 `define PKT_ST_TKN_PID_PKT_SENT 6'b000111 `define PKT_ST_DATA_DATA_PKT_SENT 6'b001000 `define PKT_ST_DATA_PID_PKT_SENT 6'b001001 `define PKT_ST_HS_PKT_SENT 6'b001010 `define PKT_ST_DATA_CRC_PKT_SENT1 6'b001011 `define PKT_ST_TKN_BYTE1_PKT_SENT1 6'b001100 `define PKT_ST_DATA_CRC_PKT_SENT2 6'b001101 `define RES_ST_S1 6'b001110 `define RES_ST_S3 6'b001111 `define RES_ST_S4 6'b010000 `define RES_ST_S5 6'b010001 `define RES_ST_S6 6'b010010 `define PKT_ST_SPCL_SEND_IDLE1 6'b010011 `define PKT_ST_SPCL_SEND_IDLE2 6'b010100 `define PKT_ST_SPCL_SEND_IDLE3 6'b010101 `define START_SIETX 6'b010110 `define STX_CHK_ST 6'b010111 `define STX_WAIT_BYTE 6'b011000 `define IDLE_STX_WAIT_GNT 6'b011001 `define IDLE_STX_WAIT_RDY 6'b011010 `define PKT_ST_TKN_CRC_UPD_CRC 6'b011011 `define PKT_ST_DATA_DATA_UPD_CRC 6'b011100 `define PKT_ST_TKN_BYTE1_UPD_CRC 6'b011101 `define PKT_ST_TKN_CRC_WAIT_BYTE 6'b011110 `define PKT_ST_TKN_BYTE1_WAIT_BYTE 6'b011111 `define PKT_ST_DATA_DATA_WAIT_BYTE 6'b100000 `define DIR_CTL_WAIT_GNT 6'b100001 `define RES_ST_WAIT_GNT 6'b100010 `define PKT_ST_HS_WAIT_RDY 6'b100011 `define PKT_ST_DATA_PID_WAIT_RDY 6'b100100 `define PKT_ST_SPCL_WAIT_RDY 6'b100101 `define RES_ST_WAIT_RDY 6'b100110 `define PKT_ST_DATA_DATA_WAIT_RDY 6'b100111 `define PKT_ST_TKN_PID_WAIT_RDY 6'b101000 `define PKT_ST_TKN_CRC_WAIT_RDY 6'b101001 `define PKT_ST_TKN_BYTE1_WAIT_RDY 6'b101010 `define DIR_CTL_WAIT_RDY 6'b101011 `define PKT_ST_DATA_CRC_WAIT_RDY1 6'b101100 `define PKT_ST_DATA_CRC_WAIT_RDY2 6'b101101 `define PKT_ST_WAIT_RDY_PKT 6'b101110 `define PKT_ST_SPCL_WAIT_WIRE 6'b101111 `define PKT_ST_WAIT_RDY_WIRE 6'b110000 `define PKT_ST_WAIT_GNT 6'b110001 `define PKT_ST_TKN_CRC_WAIT_CRC_RDY 6'b110010 `define PKT_ST_DATA_DATA_WAIT_CRC_RDY 6'b110011 `define PKT_ST_TKN_BYTE1_WAIT_CRC_RDY 6'b110100 reg [5:0] CurrState_SIETx; reg [5:0] NextState_SIETx; //-------------------------------------------------------------------- // Machine: SIETx //-------------------------------------------------------------------- //---------------------------------- // NextState logic (combinatorial) //---------------------------------- always @ (SIEPortDataIn or SIEPortCtrlIn or i or SIEPortData or JBit or CRC16Result or CRC5Result or KBit or SIEPortCtrl or SIEPortWEn or USBWireGnt or USBWireRdy or processTxByteRdy or CRC16UpdateRdy or CRC5UpdateRdy or processTxByteWEn or TxByteOut or TxByteOutCtrl or USBWireData or USBWireCtrl or USBWireReq or USBWireWEn or rstCRC or CRCData or CRC5En or CRC5_8Bit or CRC16En or SIEPortTxRdy or CurrState_SIETx) begin : SIETx_NextState NextState_SIETx <= CurrState_SIETx; // Set default values for outputs and signals next_processTxByteWEn <= processTxByteWEn; next_TxByteOut <= TxByteOut; next_TxByteOutCtrl <= TxByteOutCtrl; next_USBWireData <= USBWireData; next_USBWireCtrl <= USBWireCtrl; next_USBWireReq <= USBWireReq; next_USBWireWEn <= USBWireWEn; next_rstCRC <= rstCRC; next_CRCData <= CRCData; next_CRC5En <= CRC5En; next_CRC5_8Bit <= CRC5_8Bit; next_CRC16En <= CRC16En; next_SIEPortTxRdy <= SIEPortTxRdy; next_SIEPortData <= SIEPortData; next_SIEPortCtrl <= SIEPortCtrl; next_i <= i; case (CurrState_SIETx) // synopsys parallel_case full_case `START_SIETX: begin next_processTxByteWEn <= 1'b0; next_TxByteOut <= 8'h00; next_TxByteOutCtrl <= 8'h00; next_USBWireData <= 2'b00; next_USBWireCtrl <= `TRI_STATE; next_USBWireReq <= 1'b0; next_USBWireWEn <= 1'b0; next_rstCRC <= 1'b0; next_CRCData <= 8'h00; next_CRC5En <= 1'b0; next_CRC5_8Bit <= 1'b0; next_CRC16En <= 1'b0; next_SIEPortTxRdy <= 1'b0; next_SIEPortData <= 8'h00; next_SIEPortCtrl <= 8'h00; next_i <= 5'h0; NextState_SIETx <= `STX_WAIT_BYTE; end `STX_CHK_ST: if (SIEPortCtrl == `TX_PACKET_START) begin NextState_SIETx <= `PKT_ST_WAIT_GNT; next_USBWireReq <= 1'b1; end else if (SIEPortCtrl == `TX_IDLE) begin NextState_SIETx <= `IDLE_STX_WAIT_GNT; next_USBWireReq <= 1'b1; end else if (SIEPortCtrl == `TX_DIRECT_CONTROL) begin NextState_SIETx <= `DIR_CTL_WAIT_GNT; next_USBWireReq <= 1'b1; end else if (SIEPortCtrl == `TX_RESUME_START) begin NextState_SIETx <= `RES_ST_WAIT_GNT; next_USBWireReq <= 1'b1; next_i <= 5'h0; end `STX_WAIT_BYTE: begin next_SIEPortTxRdy <= 1'b1; if (SIEPortWEn == 1'b1) begin NextState_SIETx <= `STX_CHK_ST; next_SIEPortData <= SIEPortDataIn; next_SIEPortCtrl <= SIEPortCtrlIn; next_SIEPortTxRdy <= 1'b0; end end `DIR_CTL_CHK_FIN: begin next_USBWireWEn <= 1'b0; next_i <= i + 1'b1; if (i == 5'h7) begin NextState_SIETx <= `STX_WAIT_BYTE; next_USBWireReq <= 1'b0; end else NextState_SIETx <= `DIR_CTL_WAIT_RDY; end `DIR_CTL_WAIT_GNT: begin next_i <= 5'h0; if (USBWireGnt == 1'b1) NextState_SIETx <= `DIR_CTL_WAIT_RDY; end `DIR_CTL_WAIT_RDY: if (USBWireRdy == 1'b1) begin NextState_SIETx <= `DIR_CTL_CHK_FIN; next_USBWireData <= SIEPortData[1:0]; next_USBWireCtrl <= `DRIVE; next_USBWireWEn <= 1'b1; end `IDLE_CHK_FIN: begin next_USBWireWEn <= 1'b0; next_i <= i + 1'b1; if (i == 5'h7) begin NextState_SIETx <= `STX_WAIT_BYTE; next_USBWireReq <= 1'b0; end else NextState_SIETx <= `IDLE_STX_WAIT_RDY; end `IDLE_STX_WAIT_GNT: begin next_i <= 5'h0; if (USBWireGnt == 1'b1) NextState_SIETx <= `IDLE_STX_WAIT_RDY; end `IDLE_STX_WAIT_RDY: if (USBWireRdy == 1'b1) begin NextState_SIETx <= `IDLE_CHK_FIN; next_USBWireData <= 2'b00; next_USBWireCtrl <= `TRI_STATE; next_USBWireWEn <= 1'b1; end `PKT_ST_CHK_PID: begin next_processTxByteWEn <= 1'b0; if (SIEPortData[1:0] == `HANDSHAKE) NextState_SIETx <= `PKT_ST_HS_WAIT_RDY; else if (SIEPortData[1:0] == `TOKEN) NextState_SIETx <= `PKT_ST_TKN_PID_WAIT_RDY; else if (SIEPortData[1:0] == `SPECIAL) NextState_SIETx <= `PKT_ST_SPCL_WAIT_RDY; else if (SIEPortData[1:0] == `DATA) NextState_SIETx <= `PKT_ST_DATA_PID_WAIT_RDY; end `PKT_ST_WAIT_RDY_PKT: begin next_USBWireWEn <= 1'b0; next_USBWireReq <= 1'b0; if (processTxByteRdy == 1'b1) begin NextState_SIETx <= `PKT_ST_CHK_PID; next_processTxByteWEn <= 1'b1; next_TxByteOut <= `SYNC_BYTE; next_TxByteOutCtrl <= `DATA_START; end end `PKT_ST_WAIT_RDY_WIRE: if (USBWireRdy == 1'b1) begin NextState_SIETx <= `PKT_ST_WAIT_RDY_PKT; //actively drive the first J bit next_USBWireData <= JBit; next_USBWireCtrl <= `DRIVE; next_USBWireWEn <= 1'b1; end `PKT_ST_WAIT_GNT: if (USBWireGnt == 1'b1) NextState_SIETx <= `PKT_ST_WAIT_RDY_WIRE; `PKT_ST_DATA_CRC_PKT_SENT1: begin next_processTxByteWEn <= 1'b0; NextState_SIETx <= `PKT_ST_DATA_CRC_WAIT_RDY2; end `PKT_ST_DATA_CRC_PKT_SENT2: begin next_processTxByteWEn <= 1'b0; NextState_SIETx <= `STX_WAIT_BYTE; end `PKT_ST_DATA_CRC_WAIT_RDY1: if (processTxByteRdy == 1'b1) begin NextState_SIETx <= `PKT_ST_DATA_CRC_PKT_SENT1; next_processTxByteWEn <= 1'b1; next_TxByteOut <= ~CRC16Result[7:0]; next_TxByteOutCtrl <= `DATA_STREAM; end `PKT_ST_DATA_CRC_WAIT_RDY2: if (processTxByteRdy == 1'b1) begin NextState_SIETx <= `PKT_ST_DATA_CRC_PKT_SENT2; next_processTxByteWEn <= 1'b1; next_TxByteOut <= ~CRC16Result[15:8]; next_TxByteOutCtrl <= `DATA_STOP; end `PKT_ST_DATA_DATA_CHK_STOP: if (SIEPortCtrl == `TX_PACKET_STOP) NextState_SIETx <= `PKT_ST_DATA_CRC_WAIT_RDY1; else NextState_SIETx <= `PKT_ST_DATA_DATA_WAIT_CRC_RDY; `PKT_ST_DATA_DATA_PKT_SENT: begin next_processTxByteWEn <= 1'b0; NextState_SIETx <= `PKT_ST_DATA_DATA_WAIT_BYTE; end `PKT_ST_DATA_DATA_UPD_CRC: begin next_CRCData <= SIEPortData; next_CRC16En <= 1'b1; NextState_SIETx <= `PKT_ST_DATA_DATA_WAIT_RDY; end `PKT_ST_DATA_DATA_WAIT_BYTE: begin next_SIEPortTxRdy <= 1'b1; if (SIEPortWEn == 1'b1) begin NextState_SIETx <= `PKT_ST_DATA_DATA_CHK_STOP; next_SIEPortData <= SIEPortDataIn; next_SIEPortCtrl <= SIEPortCtrlIn; next_SIEPortTxRdy <= 1'b0; end end `PKT_ST_DATA_DATA_WAIT_RDY: begin next_CRC16En <= 1'b0; if (processTxByteRdy == 1'b1) begin NextState_SIETx <= `PKT_ST_DATA_DATA_PKT_SENT; next_processTxByteWEn <= 1'b1; next_TxByteOut <= SIEPortData; next_TxByteOutCtrl <= `DATA_STREAM; end end `PKT_ST_DATA_DATA_WAIT_CRC_RDY: if (CRC16UpdateRdy == 1'b1) NextState_SIETx <= `PKT_ST_DATA_DATA_UPD_CRC; `PKT_ST_DATA_PID_PKT_SENT: begin next_processTxByteWEn <= 1'b0; next_rstCRC <= 1'b0; NextState_SIETx <= `PKT_ST_DATA_DATA_WAIT_BYTE; end `PKT_ST_DATA_PID_WAIT_RDY: if (processTxByteRdy == 1'b1) begin NextState_SIETx <= `PKT_ST_DATA_PID_PKT_SENT; next_processTxByteWEn <= 1'b1; next_TxByteOut <= SIEPortData; next_TxByteOutCtrl <= `DATA_STREAM; next_rstCRC <= 1'b1; end `PKT_ST_HS_PKT_SENT: begin next_processTxByteWEn <= 1'b0; NextState_SIETx <= `STX_WAIT_BYTE; end `PKT_ST_HS_WAIT_RDY: if (processTxByteRdy == 1'b1) begin NextState_SIETx <= `PKT_ST_HS_PKT_SENT; next_processTxByteWEn <= 1'b1; next_TxByteOut <= SIEPortData; next_TxByteOutCtrl <= `DATA_STOP; end `PKT_ST_SPCL_PKT_SENT: begin next_processTxByteWEn <= 1'b0; NextState_SIETx <= `PKT_ST_SPCL_WAIT_WIRE; end `PKT_ST_SPCL_SEND_IDLE1: begin next_USBWireWEn <= 1'b0; if (USBWireRdy == 1'b1) begin NextState_SIETx <= `PKT_ST_SPCL_SEND_IDLE2; next_USBWireData <= JBit; next_USBWireCtrl <= `TRI_STATE; next_USBWireWEn <= 1'b1; end end `PKT_ST_SPCL_SEND_IDLE2: begin next_USBWireWEn <= 1'b0; if (USBWireRdy == 1'b1) begin NextState_SIETx <= `PKT_ST_SPCL_SEND_IDLE3; next_USBWireData <= JBit; next_USBWireCtrl <= `TRI_STATE; next_USBWireWEn <= 1'b1; end end `PKT_ST_SPCL_SEND_IDLE3: begin next_USBWireWEn <= 1'b0; NextState_SIETx <= `STX_WAIT_BYTE; end `PKT_ST_SPCL_WAIT_RDY: if (processTxByteRdy == 1'b1) begin NextState_SIETx <= `PKT_ST_SPCL_PKT_SENT; next_processTxByteWEn <= 1'b1; next_TxByteOut <= SIEPortData; next_TxByteOutCtrl <= `DATA_STOP; end `PKT_ST_SPCL_WAIT_WIRE: if (USBWireRdy == 1'b1) begin NextState_SIETx <= `PKT_ST_SPCL_SEND_IDLE1; next_USBWireData <= JBit; next_USBWireCtrl <= `TRI_STATE; next_USBWireWEn <= 1'b1; end `PKT_ST_TKN_BYTE1_PKT_SENT1: begin next_processTxByteWEn <= 1'b0; NextState_SIETx <= `PKT_ST_TKN_CRC_WAIT_BYTE; end `PKT_ST_TKN_BYTE1_UPD_CRC: begin next_CRCData <= SIEPortData; next_CRC5_8Bit <= 1'b1; next_CRC5En <= 1'b1; NextState_SIETx <= `PKT_ST_TKN_BYTE1_WAIT_RDY; end `PKT_ST_TKN_BYTE1_WAIT_BYTE: begin next_SIEPortTxRdy <= 1'b1; if (SIEPortWEn == 1'b1) begin NextState_SIETx <= `PKT_ST_TKN_BYTE1_WAIT_CRC_RDY; next_SIEPortData <= SIEPortDataIn; next_SIEPortCtrl <= SIEPortCtrlIn; next_SIEPortTxRdy <= 1'b0; end end `PKT_ST_TKN_BYTE1_WAIT_RDY: begin next_CRC5En <= 1'b0; if (processTxByteRdy == 1'b1) begin NextState_SIETx <= `PKT_ST_TKN_BYTE1_PKT_SENT1; next_processTxByteWEn <= 1'b1; next_TxByteOut <= SIEPortData; next_TxByteOutCtrl <= `DATA_STREAM; end end `PKT_ST_TKN_BYTE1_WAIT_CRC_RDY: if (CRC5UpdateRdy == 1'b1) NextState_SIETx <= `PKT_ST_TKN_BYTE1_UPD_CRC; `PKT_ST_TKN_CRC_PKT_SENT: begin next_processTxByteWEn <= 1'b0; NextState_SIETx <= `STX_WAIT_BYTE; end `PKT_ST_TKN_CRC_UPD_CRC: begin next_CRCData <= SIEPortData; next_CRC5_8Bit <= 1'b0; next_CRC5En <= 1'b1; NextState_SIETx <= `PKT_ST_TKN_CRC_WAIT_RDY; end `PKT_ST_TKN_CRC_WAIT_BYTE: begin next_SIEPortTxRdy <= 1'b1; if (SIEPortWEn == 1'b1) begin NextState_SIETx <= `PKT_ST_TKN_CRC_WAIT_CRC_RDY; next_SIEPortData <= SIEPortDataIn; next_SIEPortCtrl <= SIEPortCtrlIn; next_SIEPortTxRdy <= 1'b0; end end `PKT_ST_TKN_CRC_WAIT_RDY: begin next_CRC5En <= 1'b0; if (processTxByteRdy == 1'b1) begin NextState_SIETx <= `PKT_ST_TKN_CRC_PKT_SENT; next_processTxByteWEn <= 1'b1; next_TxByteOut <= {~CRC5Result, SIEPortData[2:0] }; next_TxByteOutCtrl <= `DATA_STOP; end end `PKT_ST_TKN_CRC_WAIT_CRC_RDY: if (CRC5UpdateRdy == 1'b1) NextState_SIETx <= `PKT_ST_TKN_CRC_UPD_CRC; `PKT_ST_TKN_PID_PKT_SENT: begin next_processTxByteWEn <= 1'b0; next_rstCRC <= 1'b0; NextState_SIETx <= `PKT_ST_TKN_BYTE1_WAIT_BYTE; end `PKT_ST_TKN_PID_WAIT_RDY: if (processTxByteRdy == 1'b1) begin NextState_SIETx <= `PKT_ST_TKN_PID_PKT_SENT; next_processTxByteWEn <= 1'b1; next_TxByteOut <= SIEPortData; next_TxByteOutCtrl <= `DATA_STREAM; next_rstCRC <= 1'b1; end `RES_ST_CHK_FIN: begin next_USBWireWEn <= 1'b0; if (i == `RESUME_LEN) NextState_SIETx <= `RES_ST_S1; else NextState_SIETx <= `RES_ST_WAIT_RDY; end `RES_ST_S1: if (USBWireRdy == 1'b1) begin NextState_SIETx <= `RES_ST_S3; next_USBWireData <= `SE0; next_USBWireCtrl <= `DRIVE; next_USBWireWEn <= 1'b1; end `RES_ST_S3: begin next_USBWireWEn <= 1'b0; if (USBWireRdy == 1'b1) begin NextState_SIETx <= `RES_ST_S4; next_USBWireData <= `SE0; next_USBWireCtrl <= `DRIVE; next_USBWireWEn <= 1'b1; end end `RES_ST_S4: begin next_USBWireWEn <= 1'b0; if (USBWireRdy == 1'b1) begin NextState_SIETx <= `RES_ST_S5; next_USBWireData <= JBit; next_USBWireCtrl <= `DRIVE; next_USBWireWEn <= 1'b1; end end `RES_ST_S5: begin next_USBWireWEn <= 1'b0; if (USBWireRdy == 1'b1) begin NextState_SIETx <= `RES_ST_S6; next_USBWireData <= JBit; next_USBWireCtrl <= `TRI_STATE; next_USBWireWEn <= 1'b1; end end `RES_ST_S6: begin next_USBWireWEn <= 1'b0; next_USBWireReq <= 1'b0; NextState_SIETx <= `STX_WAIT_BYTE; end `RES_ST_WAIT_GNT: if (USBWireGnt == 1'b1) NextState_SIETx <= `RES_ST_WAIT_RDY; `RES_ST_WAIT_RDY: if (USBWireRdy == 1'b1) begin NextState_SIETx <= `RES_ST_CHK_FIN; next_USBWireData <= KBit; next_USBWireCtrl <= `DRIVE; next_USBWireWEn <= 1'b1; next_i <= i + 1'b1; end endcase end //---------------------------------- // Current State Logic (sequential) //---------------------------------- always @ (posedge clk) begin : SIETx_CurrentState if (rst) CurrState_SIETx <= `START_SIETX; else CurrState_SIETx <= NextState_SIETx; end //---------------------------------- // Registered outputs logic //---------------------------------- always @ (posedge clk) begin : SIETx_RegOutput if (rst) begin SIEPortData <= 8'h00; SIEPortCtrl <= 8'h00; i <= 5'h0; processTxByteWEn <= 1'b0; TxByteOut <= 8'h00; TxByteOutCtrl <= 8'h00; USBWireData <= 2'b00; USBWireCtrl <= `TRI_STATE; USBWireReq <= 1'b0; USBWireWEn <= 1'b0; rstCRC <= 1'b0; CRCData <= 8'h00; CRC5En <= 1'b0; CRC5_8Bit <= 1'b0; CRC16En <= 1'b0; SIEPortTxRdy <= 1'b0; end else begin SIEPortData <= next_SIEPortData; SIEPortCtrl <= next_SIEPortCtrl; i <= next_i; processTxByteWEn <= next_processTxByteWEn; TxByteOut <= next_TxByteOut; TxByteOutCtrl <= next_TxByteOutCtrl; USBWireData <= next_USBWireData; USBWireCtrl <= next_USBWireCtrl; USBWireReq <= next_USBWireReq; USBWireWEn <= next_USBWireWEn; rstCRC <= next_rstCRC; CRCData <= next_CRCData; CRC5En <= next_CRC5En; CRC5_8Bit <= next_CRC5_8Bit; CRC16En <= next_CRC16En; SIEPortTxRdy <= next_SIEPortTxRdy; end end endmodule
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