Entity: HtspTx
- File: HtspTx.vhd
Diagram
Description
Title : HTSP: https://confluence.slac.stanford.edu/x/pQmODw
Company : SLAC National Accelerator Laboratory
Description: HTSP Ethernet Transmitter
This file is part of 'SLAC Firmware Standard Library'. It is subject to the license terms in the LICENSE.txt file found in the top-level directory of this distribution and at: https://confluence.slac.stanford.edu/display/ppareg/LICENSE.html. No part of 'SLAC Firmware Standard Library', including this file, may be copied, modified, propagated, or distributed except according to
the terms contained in the LICENSE.txt file.
Generics
| Generic name | Type | Value | Description |
|---|---|---|---|
| TPD_G | time | 1 ns | |
| NUM_VC_G | positive range 1 to 16 | 1 | |
| MAX_PAYLOAD_SIZE_G | positive | 8192 |
Ports
| Port name | Direction | Type | Description |
|---|---|---|---|
| remoteMac | in | slv(47 downto 0) | Ethernet Configuration |
| localMac | in | slv(47 downto 0) | |
| broadcastMac | in | slv(47 downto 0) | |
| etherType | in | slv(15 downto 0) | |
| htspClk | in | sl | User interface |
| htspRst | in | sl | |
| htspTxIn | in | HtspTxInType | |
| htspTxOut | out | HtspTxOutType | |
| htspTxMasters | in | AxiStreamMasterArray(NUM_VC_G-1 downto 0) | |
| htspTxSlaves | out | AxiStreamSlaveArray(NUM_VC_G-1 downto 0) | |
| locRxFifoCtrl | in | AxiStreamCtrlArray(NUM_VC_G-1 downto 0) | Status of receive and remote FIFOs |
| locRxLinkReady | in | sl | |
| remRxFifoCtrl | in | AxiStreamCtrlArray(NUM_VC_G-1 downto 0) | |
| remRxLinkReady | in | sl | |
| phyTxRdy | in | sl | PHY interface |
| phyTxMaster | out | AxiStreamMasterType | |
| phyTxSlave | in | AxiStreamSlaveType |
Signals
| Name | Type | Description |
|---|---|---|
| r | RegType | |
| rin | RegType | |
| ibTxMasters | AxiStreamMasterArray(NUM_VC_G-1 downto 0) | |
| ibTxSlaves | AxiStreamSlaveArray(NUM_VC_G-1 downto 0) | |
| htspTxMaster | AxiStreamMasterType | |
| htspTxSlave | AxiStreamSlaveType | |
| txSlave | AxiStreamSlaveType |
Constants
| Name | Type | Value | Description |
|---|---|---|---|
| MAX_SIZE_C | positive | (MAX_PAYLOAD_SIZE_G/64) | units of 512-bit words |
| REG_INIT_C | RegType | ( disableSel => (others => '0'), sof => (others => '1'), eof => '0', eofe => '0', lastKeep => (others => '1'), wrdCnt => 0, tid => (others => '0'), nullCnt => (others => '0'), nullInterval => (others => '0'), pause => (others => '0'), lastPausSent => (others => '0'), tDest => (others => '0'), htspTxOut => HTSP_TX_OUT_INIT_C, htspTxSlave => AXI_STREAM_SLAVE_INIT_C, txMaster => AXI_STREAM_MASTER_INIT_C, state => IDLE_S) |
Types
| Name | Type | Description |
|---|---|---|
| StateType | ( IDLE_S, HDR_S, PAYLOAD_S, FOOTER_S) |
|
| RegType |
Processes
- comb: ( broadcastMac, etherType, htspRst, htspTxIn, htspTxMaster,
locRxFifoCtrl, locRxLinkReady, localMac, phyTxRdy, r,
remRxFifoCtrl, remRxLinkReady, remoteMac, txSlave )
- seq: ( htspClk )
Instantiations
- U_Mux: surf.AxiStreamMux
Description
Multiplex the incoming TX streams with interleaving
- U_Pipeline: surf.AxiStreamPipeline