External Memory Interfaces Intel® Agilex™ FPGA IP User Guide

ID 683216
Date 6/20/2022
Public

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11.9.8.2. Configuring the Traffic Generator

Set all the required parameters on the Instruction Pattern, Address Pattern, and Data Pattern tabs in the traffic generator interface. For information about how each setting affects the final traffic pattern, refer to the User-Configured Traffic Pattern section.

Figure 220. Instruction Pattern Tab
Figure 221. Instruction Pattern tab: Separate Read and Write Settings
Figure 223. Address Pattern Tab – Basic Mode
Figure 224. Address Pattern Tab – Advanced Mode

The address pattern tab can be viewed in Basic Mode or Advanced Mode. Basic Mode presents a simple method of address generation where the specified pattern affects the full address width. Basic mode lets you generate addresses randomly, sequentially, or random-sequentially from a given starting address, with a given address increment. Conversely, Advanced Mode lets you specify six independent patterns for different portions of the address, by selecting a field index to configure from the drop-down menu, and then setting the MSB position, address mode, start address, and relative frequency. Basic Mode is a subset of Advanced Mode, and the same configurations apply.

Figure 225. Address Pattern tab: Separate Read and Write Settings – Basic Mode
Figure 226. Address Pattern tab: Separate Read and Write Settings – Advanced Mode
Figure 227. Data Pattern Tab

If you click Separate Read and Write Settings at the top of the dialog box, the Instruction Pattern and Address Pattern tabs display separate Write Settings parameters and Read Settings parameters, where applicable.

The Configurations tab shows all of the configurations available on the interface, and the values to which each is set.

Figure 229. Configurations Tab

Byte-enable Test

The byte-enable test consists of three stages, as follows:

  1. Write-only stage: 3 writes with write_data and byte-enable.
  2. Invert byte-enable and write_data stage: 3 writes with inverted write_data and inverted byte-enable. This stage is accomplished by writing a value of 1 to TG_INVERT_BYTEEN (symbol address 0xAC).
  3. Read-only stage: 3 reads and comparison of read_data with (write_data & byte-enable | ~write_data & ~byte-enable). Test byte-enable comparison is enabled by writing a value of 1 to TG_TEST_BYTEEN (symbol address 0xB8).
Figure 230. Byte-enable Test

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