Entity: axistream_vvc
- File: axistream_vvc.vhd
Diagram
Description
================================================================================================================================ Copyright 2020 Bitvis Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 and in the provided LICENSE.TXT.
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and limitations under the License.
Note : Any functionality not explicitly described in the documentation is subject to change at any time
Description : See library quick reference (under 'doc') and README-file(s)
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Generics
| Generic name | Type | Value | Description |
|---|---|---|---|
| GC_VVC_IS_MASTER | boolean | When true: This VVC is an AXI4 Stream master. Data is output from BFM. When false: This VVC is an AXI4 Stream slave. Data is input to BFM. | |
| GC_DATA_WIDTH | integer | ||
| GC_USER_WIDTH | integer | 1 | |
| GC_ID_WIDTH | integer | 1 | (Note: STRB_WIDTH = DATA_WIDTH/8) |
| GC_DEST_WIDTH | integer | 1 | |
| GC_INSTANCE_IDX | natural | ||
| GC_PACKETINFO_QUEUE_COUNT_MAX | natural | 1 | Number of PacketInfo Queues, normally one per source VVC |
| GC_AXISTREAM_BFM_CONFIG | t_axistream_bfm_config | C_AXISTREAM_BFM_CONFIG_DEFAULT | |
| GC_CMD_QUEUE_COUNT_MAX | natural | 1000 | |
| GC_CMD_QUEUE_COUNT_THRESHOLD | natural | 950 | |
| GC_CMD_QUEUE_COUNT_THRESHOLD_SEVERITY | t_alert_level | warning | |
| GC_RESULT_QUEUE_COUNT_MAX | natural | 1000 | |
| GC_RESULT_QUEUE_COUNT_THRESHOLD | natural | 950 | |
| GC_RESULT_QUEUE_COUNT_THRESHOLD_SEVERITY | t_alert_level | WARNING |
Ports
| Port name | Direction | Type | Description |
|---|---|---|---|
| clk | in | std_logic | |
| axistream_vvc_if | inout | t_axistream_if |
Signals
| Name | Type | Description |
|---|---|---|
| executor_is_busy | boolean | |
| queue_is_increasing | boolean | |
| last_cmd_idx_executed | natural | |
| terminate_current_cmd | t_flag_record | |
| entry_num_in_vvc_activity_register | integer | VVC Activity |
Constants
| Name | Type | Value | Description |
|---|---|---|---|
| C_SCOPE | string | C_VVC_NAME & ", " & to_string(GC_INSTANCE_IDX) |
|
| C_VVC_LABELS | t_vvc_labels | assign_vvc_labels(C_SCOPE, C_VVC_NAME, GC_INSTANCE_IDX, NA) |
Functions
- get_msg_id_panel ( constant command : in t_vvc_cmd_record;
constant vvc_config : in t_vvc_config ) return t_msg_id_panel
Description
UVVM: temporary fix for HVVC, remove function below in v3.0
Processes
- cmd_interpreter: ( )
Description
======================================================================================================================== ======================================================================================================================== Command interpreter - Interpret, decode and acknowledge commands from the central sequencer ========================================================================================================================
- cmd_executor: ( )
Description
======================================================================================================================== ======================================================================================================================== Command executor - Fetch and execute the commands ========================================================================================================================