Entity: UdpEngineArp
- File: UdpEngineArp.vhd
Diagram
Description
Company : SLAC National Accelerator Laboratory
Description: UDP Client's ARP Messaging Module
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 | |
| CLIENT_SIZE_G | positive | 1 | |
| CLK_FREQ_G | real | 156.25E+06 | |
| COMM_TIMEOUT_G | positive | 30 | |
| RESP_TIMEOUT_G | positive | 5 |
Ports
| Port name | Direction | Type | Description |
|---|---|---|---|
| localIp | in | slv(31 downto 0) | big-Endian configuration |
| arpReqMasters | out | AxiStreamMasterArray(CLIENT_SIZE_G-1 downto 0) | Request via IP address |
| arpReqSlaves | in | AxiStreamSlaveArray(CLIENT_SIZE_G-1 downto 0) | |
| arpAckMasters | in | AxiStreamMasterArray(CLIENT_SIZE_G-1 downto 0) | Respond with MAC address |
| arpAckSlaves | out | AxiStreamSlaveArray(CLIENT_SIZE_G-1 downto 0) | |
| clientRemoteDet | in | slv(CLIENT_SIZE_G-1 downto 0) | Interface to UDP Client engine(s) |
| clientRemoteIp | in | Slv32Array(CLIENT_SIZE_G-1 downto 0) | |
| clientRemoteMac | out | Slv48Array(CLIENT_SIZE_G-1 downto 0) | |
| clk | in | sl | Clock and Reset |
| rst | in | sl |
Signals
| Name | Type | Description |
|---|---|---|
| r | RegType | |
| rin | RegType |
Constants
| Name | Type | Value | Description |
|---|---|---|---|
| TIMER_1_SEC_C | natural | getTimeRatio(CLK_FREQ_G, 1.0) |
|
| REG_INIT_C | RegType | ( clientRemoteMac => (others => (others => '0')), arpAckSlaves => (others => AXI_STREAM_SLAVE_INIT_C), arpReqMasters => (others => AXI_STREAM_MASTER_INIT_C), timerEn => '0', timer => 0, arpTimers => (others => 0), respTimers => (others => 0), state => (others => IDLE_S)) |
Types
| Name | Type | Description |
|---|---|---|
| TimerArray | array (natural range <>) of natural range 0 to COMM_TIMEOUT_G | |
| StateType | ( IDLE_S, WAIT_S, COMM_MONITOR_S) |
|
| StateArray | array (natural range <>) of StateType | |
| RegType |
Processes
- comb: ( arpAckMasters, arpReqSlaves, clientRemoteDet, clientRemoteIp, r, rst )
- seq: ( clk )