Entity: JesdSyncFsmTx
- File: JesdSyncFsmTx.vhd
Diagram
Description
Company : SLAC National Accelerator Laboratory
Description: Synchronizer TX Finite state machine Finite state machine for sub-class 1 and sub-class 0 deterministic latency
lane synchronization.
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_ILAS_MF_G | positive | 4 | ESD204B class (0 and 1 supported) Number of multi-frames in ILA sequence (4-255) |
Ports
Port name | Direction | Type | Description |
---|---|---|---|
clk | in | sl | Clocks and Resets |
rst | in | sl | |
subClass_i | in | sl | JESD subclass selection: '0' or '1'(default) |
enable_i | in | sl | Enable the module |
lmfc_i | in | sl | Local multi frame clock |
nSync_i | in | sl | Synchronization request |
gtTxReady_i | in | sl | GT is ready to transmit data after reset |
sysRef_i | in | sl | SYSREF for subclass 1 fixed latency |
dataValid_o | out | sl | Synchronization process is complete start sending data |
sysref_o | out | sl | sysref received |
ila_o | out | sl | Initial lane synchronization sequence indicator |
Signals
Name | Type | Description |
---|---|---|
r | RegType | |
rin | RegType |
Constants
Name | Type | Value | Description |
---|---|---|---|
REG_INIT_C | RegType | ( dataValid => '0', ila => '0', sysref => '0', cnt => (others => '0'), -- Status Machine state => IDLE_S ) |
Types
Name | Type | Description |
---|---|---|
stateType | ( IDLE_S, SYNC_S, ILA_S, DATA_S ) |
|
RegType |
Processes
- comb: ( rst, r, enable_i, lmfc_i, nSync_i, gtTxReady_i, sysRef_i, subClass_i )
- seq: ( clk )