Basic Tab - 1.0 English

Versal ACAP DMA and Bridge Subsystem for PCI Express Product Guide (PG344)

Document ID
PG344
Release Date
2022-05-20
Version
1.0 English
Figure 1. Basic Tab for DMA Functional Mode
The options are defined as follows:
Functional Mode
Set to DMA Subsystem.
Mode
Allows you to select the Basic or Advanced mode of the configuration of subsystem.
Device /Port Type
Only PCI Express® Endpoint device mode is supported.
PCIe Block Location
Selects from the available integrated blocks to enable generation of location-specific constraint files and pinouts. This selection is used in the default example design scripts. This option is not available if a Xilinx Development Board is selected.
Lane Width
The subsystem requires the selection of the initial lane width. For supported lane widths and link speeds, see the Versal ACAP Integrated Block for PCI Express LogiCORE IP Product Guide (PG343). Higher link speed cores are capable of training to a lower link speed if connected to a lower link speed capable device.
Maximum Link Speed
The subsystem requires the selection of the PCIe Gen speed.
Reference Clock Frequency
The default is 100 MHz, but 125 MHz and 250 MHz are also supported.
AXI Address Width
Currently, only 64-bit width is supported.
AXI Data Width
Select 64, 128, 256-bit, or 512-bit. The subsystem allows you to select the Interface Width, as defined in the Versal ACAP Integrated Block for PCI Express LogiCORE IP Product Guide (PG343).
AXI Clock Frequency
Select 62.5 MHz, 125 MHz or 250 MHz depending on the lane width/speed.
DMA Interface Option
Select AXI4 Memory Mapped and AXI4-Stream.
AXI4-Lite Slave Interface
Select to enable the AXI4-Lite slave Interface.
Enable PIPE Simulation
When selected, this option enables an external third-party bus functional model (BFM) to connect to the PIPE interface of the integrated block for PCIe.