Entity: UdpEngineTx
- File: UdpEngineTx.vhd
Diagram
Description
Company : SLAC National Accelerator Laboratory
Description: UDP TX Engine Module
Note: UDP checksum checked in EthMac core
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 | Simulation Generics |
| SIZE_G | positive | 1 | UDP General Generic |
| TX_FLOW_CTRL_G | boolean | true | True: Blow off the UDP TX data if link down, False: Backpressure until TX link is up |
| PORT_G | PositiveArray | (0 => 8192) |
Ports
| Port name | Direction | Type | Description |
|---|---|---|---|
| obUdpMaster | out | AxiStreamMasterType | Interface to IPV4 Engine |
| obUdpSlave | in | AxiStreamSlaveType | |
| linkUp | out | slv(SIZE_G-1 downto 0) | Interface to User Application |
| localMac | in | slv(47 downto 0) | |
| localIp | in | slv(31 downto 0) | |
| remotePort | in | Slv16Array(SIZE_G-1 downto 0) | |
| remoteIp | in | Slv32Array(SIZE_G-1 downto 0) | |
| remoteMac | in | Slv48Array(SIZE_G-1 downto 0) | |
| ibMasters | in | AxiStreamMasterArray(SIZE_G-1 downto 0) | |
| ibSlaves | out | AxiStreamSlaveArray(SIZE_G-1 downto 0) | |
| obDhcpMaster | in | AxiStreamMasterType | Interface to DHCP Engine |
| obDhcpSlave | out | AxiStreamSlaveType | |
| clk | in | sl | Clock and Reset |
| rst | in | sl |
Signals
| Name | Type | Description |
|---|---|---|
| r | RegType | |
| rin | RegType | |
| txMaster | AxiStreamMasterType | |
| txSlave | AxiStreamSlaveType |
Constants
| Name | Type | Value | Description |
|---|---|---|---|
| PORT_C | Slv16Array(SIZE_G-1 downto 0) | EthPortArrayBigEndian(PORT_G, SIZE_G) |
|
| REG_INIT_C | RegType | ( linkUp => (others => '0'), tKeep => (others => '0'), tData => (others => '0'), tLast => '0', eofe => '0', chPntr => 0, index => 0, obDhcpSlave => AXI_STREAM_SLAVE_INIT_C, ibSlaves => (others => AXI_STREAM_SLAVE_INIT_C), txMaster => AXI_STREAM_MASTER_INIT_C, state => IDLE_S) |
Types
| Name | Type | Description |
|---|---|---|
| StateType | ( IDLE_S, DHCP_HDR_S, HDR_S, DHCP_BUFFER_S, BUFFER_S, LAST_S) |
|
| RegType |
Processes
- comb: ( ibMasters, localIp, localMac, obDhcpMaster, r, remoteIp,
remoteMac, remotePort, rst, txSlave )
- seq: ( clk )
Instantiations
- U_TxPipeline: surf.AxiStreamPipeline