RTL Interface Section
(Ask a Question)The RTL Interface section shows the interfaces used by the top-level module. Below is an example of the RTL interface report table:
+----------------------------------------------------------------------------------------------------------+
| RTL Interface Generated by SmartHLS |
+-------------+--------------------+---------------------------------+------------------+------------------+
| C++ Name | Interface Type | Signal Name | Signal Bit-width | Signal Direction |
+-------------+--------------------+---------------------------------+------------------+------------------+
| | Clock & Reset | clk (positive edge) | 1 | input |
| | | reset (synchronous active high) | 1 | input |
+-------------+--------------------+---------------------------------+------------------+------------------+
| | Control | finish | 1 | output |
| | | ready | 1 | output |
| | | start | 1 | input |
+-------------+--------------------+---------------------------------+------------------+------------------+
| input_fifo | Input AXI4 Stream | input_fifo_ready | 1 | output |
| | | input_fifo_valid | 1 | input |
| | | input_fifo | 8 | input |
+-------------+--------------------+---------------------------------+------------------+------------------+The table shows the interface for each top-level function argument (or global variable accessed by both the SW testbench and the top-level function - see 3.5.1.18.3 Pointer Argument and Shared Global Variable).
- The first column of the table shows the C++ source name of the argument or global variable.
- The second column shows the interface types used for this argument or global variable.
- The last three columns list the names, bit-widths, and directions for all the signals that are included in the interface. For example, the AXI4 Stream interface has three signals in this case, input_fifo for the 8-bit data, with associated valid and ready signals.
Note that the Clock & Reset and the Control interfaces are the standard module control interfaces that are always used by any SmartHLS-generated module, and hence there is no C++ name attached to them.
For more details about the RTL interface, please refer to 3.5.1.18 Top-Level RTL Interface.