Entity: PgpParallelSimModel

Diagram

time TPD_G real CLK_FREQ_G real CABLE_LENGTH_G real INDEX_OF_REFRACTION_G natural TX_SER_DELAY_C natural RX_SER_DELAY_C integer VC_INTERLEAVE_G integer PAYLOAD_CNT_TOP_G integer range 1 to 4 NUM_VC_EN_G boolean TX_ENABLE_G boolean RX_ENABLE_G sl clk sl rst AxiStreamMasterArray(3 downto 0) pgpTxMasters AxiStreamCtrlArray(3 downto 0) pgpRxCtrl Pgp2bRxInType pgpRxIn Pgp2bTxInType pgpTxIn slv(19 downto 0) pgpIn AxiStreamSlaveArray(3 downto 0) pgpTxSlaves AxiStreamMasterArray(3 downto 0) pgpRxMasters Pgp2bRxOutType pgpRxOut Pgp2bTxOutType pgpTxOut slv(19 downto 0) pgpOut

Description

Title : PGPv2b: https://confluence.slac.stanford.edu/x/q86fD

Company : SLAC National Accelerator Laboratory

Description: Simulation Testbed for PGP

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
CLK_FREQ_G real 156.250E+6 In units of HZ
CABLE_LENGTH_G real 1.0 In units of meters
INDEX_OF_REFRACTION_G real 1.5 Default is 1.5 index of refraction for fiber optic cable
TX_SER_DELAY_C natural 5
RX_SER_DELAY_C natural 5
VC_INTERLEAVE_G integer 1 Interleave Frames
PAYLOAD_CNT_TOP_G integer 7 Top bit for payload counter
NUM_VC_EN_G integer range 1 to 4 4
TX_ENABLE_G boolean true Enable TX direction
RX_ENABLE_G boolean true

Ports

Port name Direction Type Description
clk in sl System Signals
rst in sl
pgpTxMasters in AxiStreamMasterArray(3 downto 0) Frame Transmit Interface
pgpTxSlaves out AxiStreamSlaveArray(3 downto 0)
pgpRxMasters out AxiStreamMasterArray(3 downto 0) Frame Receive Interface
pgpRxCtrl in AxiStreamCtrlArray(3 downto 0)
pgpRxIn in Pgp2bRxInType Non VC Rx Signals
pgpRxOut out Pgp2bRxOutType
pgpTxIn in Pgp2bTxInType Non VC Tx Signals
pgpTxOut out Pgp2bTxOutType
pgpIn in slv(19 downto 0) PGP 8B/10B Encoded
pgpOut out slv(19 downto 0)

Signals

Name Type Description
phyTxReady sl
phyRxReady sl
pgpInDly slv(19 downto 0)
dataIn slv(19 downto 0)
dataOut slv(19 downto 0)
phyTxLanesOut Pgp2bTxPhyLaneOutArray(0 to 0)
phyRxLanesIn Pgp2bRxPhyLaneInArray(0 to 0)

Constants

Name Type Value Description
SPEED_OF_LIGHT_C real 299792458.0 speed of light in a vacuum (m/s)
SPEED_OF_FIBER_C real SPEED_OF_LIGHT_C / INDEX_OF_REFRACTION_G speed of light in a fiber (m/s)
CLK_PER_METER_C real CLK_FREQ_G / SPEED_OF_FIBER_C # of clock cycles per meter
CABLE_DELAY_FLOAT_C real CABLE_LENGTH_G * CLK_PER_METER_C
CABLE_DELAY_C natural getTimeRatio(CABLE_DELAY_FLOAT_C,
1.0)
WIDTH_C natural 20 2 bytes of 8B10B is 20 bits

Instantiations