Teledyne LeCroy Summit Z3-16 PCI Express Multi-lane Exerciser User Manual - Manual (Page 59)

Summit Z3‐16 PCI Express Multi‐Lane Exerciser User Manual 59
Generation Options Dialogs Overview Teledyne LeCroy
Figure 4.20: Generations Options Transactions Dialog - Host Emulation
Select Host in the General tab to display the Host Memory Regions pane in the
Transactions tab.
One 64‐bit and two 32‐bit regions can be specified. If a region is selected, the Physical
Address for the start of the region has to be provided as well as the length in 4 KB blocks.
Read Completion Boundary for the Host (Root Complex) emulation can be specified as
128 or 64 bytes, as defined by the PCI Express specification.
Maximum Payload Size in bytes can be specified as 128, 256, 512, 1024, 2048, 4096.
When Host Memory Regions are selected, they are accessible for reading and writing by
Write and Read Address Space buttons (see Exerciser Control Bar) as well as by
AddressSpace = Write and AddressSpace = Read script commands. When the Device
Under Test reads memory locations in the physical address range defined by one of the
enabled regions, the data written there prior to that (from the application/script or by the
device itself over PCI Express) is going to be returned.
Examples of using Host Memory Regions can be found in the SampleFiles\Z3‐
16TrainerScripts\NVMe_HostEmulation folder of the PETracer software.