Entity: Pgp4RxProtocol
- File: Pgp4RxProtocol.vhd
Diagram
Description
Title : PGPv4: https://confluence.slac.stanford.edu/x/1dzgEQ
Company : SLAC National Accelerator Laboratory
Description: PGPv4 Receive Protocol Takes pre-packetized AxiStream frames and creates a PGPv4 66/64 protocol stream (pre-scrambler). Inserts IDLE and SKP codes as needed. Inserts
user K codes on request.
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 | 4 |
Ports
| Port name | Direction | Type | Description |
|---|---|---|---|
| pgpRxClk | in | sl | User Transmit interface |
| pgpRxRst | in | sl | |
| pgpRxIn | in | Pgp4RxInType | |
| pgpRxOut | out | Pgp4RxOutType | |
| pgpRxMaster | out | AxiStreamMasterType | |
| pgpRxSlave | in | AxiStreamSlaveType | |
| remRxFifoCtrl | out | AxiStreamCtrlArray(NUM_VC_G-1 downto 0) | Status of local receive fifos |
| remRxLinkReady | out | sl | |
| locRxLinkReady | out | sl | |
| linkError | in | sl | K-code CRC error flag |
| phyRxActive | in | sl | |
| protRxValid | in | sl | |
| protRxPhyInit | out | sl | |
| protRxData | in | slv(63 downto 0) | |
| protRxHeader | in | slv(1 downto 0) |
Signals
| Name | Type | Description |
|---|---|---|
| r | RegType | |
| rin | RegType | |
| phyRxActiveSyncFall | sl | |
| phyRxActiveSync | sl |
Constants
| Name | Type | Value | Description |
|---|---|---|---|
| REG_INIT_C | RegType | ( notValidCnt => (others => '0'), count => (others => '0'), pgpRxMaster => axiStreamMasterInit(PGP4_AXIS_CONFIG_C), pgpRxOut => PGP4_RX_OUT_INIT_C, protRxPhyInit => '1', remRxFifoCtrl => (others => AXI_STREAM_CTRL_INIT_C), -- init paused remRxLinkReady => '0', locRxLinkReady => '0', version => (others => '0')) |
Types
| Name | Type | Description |
|---|---|---|
| RegType |
Processes
- comb: ( linkError, pgpRxIn, pgpRxRst, phyRxActiveSync,
phyRxActiveSyncFall, protRxData, protRxHeader, protRxValid,
r )
- seq: ( pgpRxClk )
Instantiations
- U_phyRxActiveSync: surf.SynchronizerEdge