By Patty Brogdon | September 21, 2022 | SANBlaze
The SANBlaze SBExpress PCIe Gen5 system allows us to verify the various clocking modes below for customers’ drives, including:
Common clocking mode without SSC
Common clocking mode with SSC
Separate reference clock without SSC (Static SRNS)
Separate reference clock independent SSC (Static SRIS)
RefClk without SSC for PEX only (no RefClk to the target drive, Dynamic SRNS)
RefClk with SSC for PEX only (no RefClk with SSC to the target drive, Dynamic SRIS)
The SANBlaze SBExpress PCIe Gen5 Test System is using the Broadcom® PEX89144 PCI Express (PCIe) 5.0 switch, which supports the following PCIe clocking modes:
Separate reference clock independent SSC (SRIS)
Dynamic SRIS: no clock to the drive
Static SRIS: provide clock to the drive
Separate reference clock without SSC (SRNS)
Dynamic SRNS: no clock to the drive
Static SRNS: provide clock to the drive
Spread spectrum clocking (SSC) isolation
Common clocking mode (without SSC or with SSC)
In order to meet a customer’s requirement of PCIe clocking modes verification, we implemented the PCIe clocking in our PCIe Gen5 system (board with PN= 600-950003) and created this white paper to provide detailed information on how to use the CLI commands to verify the various clocking modes.
Click this link to download our free Clocking Mode Verification for Gen5 Test System white paper.