Entity: Pgp4TxLite
- File: Pgp4TxLite.vhd
Diagram
Description
Title : PGPv4: https://confluence.slac.stanford.edu/x/1dzgEQ
Company : SLAC National Accelerator Laboratory
Description: Pgp4TxLite (no SOC/EOC support)
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 | integer range 1 to 16 | 1 | |
| SKIP_EN_G | boolean | false | |
| FLOW_CTRL_EN_G | boolean | false |
Ports
| Port name | Direction | Type | Description |
|---|---|---|---|
| pgpTxClk | in | sl | Transmit interface |
| pgpTxRst | in | sl | |
| pgpTxIn | in | Pgp4TxInType | |
| pgpTxOut | out | Pgp4TxOutType | |
| pgpTxActive | in | sl | |
| pgpTxMasters | in | AxiStreamMasterArray(NUM_VC_G-1 downto 0) | |
| pgpTxSlaves | out | AxiStreamSlaveArray(NUM_VC_G-1 downto 0) | |
| locRxFifoCtrl | in | AxiStreamCtrlArray(NUM_VC_G-1 downto 0) | Status of receive and remote FIFOs (Asynchronous) |
| locRxLinkReady | in | sl | |
| remRxFifoCtrl | in | AxiStreamCtrlArray(NUM_VC_G-1 downto 0) | |
| remRxLinkReady | in | sl | |
| phyTxActive | in | sl | PHY interface |
| phyTxReady | in | sl | |
| phyTxValid | out | sl | |
| phyTxStart | out | sl | |
| phyTxData | out | slv(63 downto 0) | |
| phyTxHeader | out | slv(1 downto 0) |
Signals
| Name | Type | Description |
|---|---|---|
| syncLocRxFifoCtrl | AxiStreamCtrlArray(NUM_VC_G-1 downto 0) | |
| syncLocRxLinkReady | sl | |
| syncRemRxFifoCtrl | AxiStreamCtrlArray(NUM_VC_G-1 downto 0) | |
| syncRemRxLinkReady | sl | |
| disableSel | slv(NUM_VC_G-1 downto 0) | Pipeline signals |
| rearbitrate | sl | |
| muxedTxMaster | AxiStreamMasterType | |
| muxedTxSlave | AxiStreamSlaveType | |
| phyTxActiveL | sl | |
| protTxValid | sl | |
| protTxReady | sl | |
| protTxStart | sl | |
| protTxData | slv(63 downto 0) | |
| protTxHeader | slv(1 downto 0) |
Processes
- DISABLE_SEL: ( pgpTxIn, syncRemRxFifoCtrl )
Description
---------------------------------------------------------------------- Use synchronized remote status to disable channels from mux selection All flow control overridden by pgpTxIn 'disable' and 'flowCntlDis' ----------------------------------------------------------------------
Instantiations
- U_Protocol: surf.Pgp4TxLiteProtocol
Description
Feed packets into PGP TX Protocol engine
Translates Packetizer2 frames, status, and opcodes into unscrambled 64b66b characters
- U_Scrambler_1: surf.Scrambler
Description
[out]
Scramble the data for 64b66b