User`s manual

About the X5 XMC Modules
could be too little power resulting in the module failing or power glitches causing the temp sensor to drop out. Did other
cards in the system fail? If so, this may indicate that a system problem must be solved.
If the module did overheat, you should review the thermal design of the system. What was the ambient tmeprature when
failure occurred? Is the air flow adequate? Is air flow blocked to the card? Did a fan fail? If conduction cooling is being
used, what is the temperature of the surrounding components? The heat must be dissipated either through conduction or
convection for the module to keep from overheating.
You should also review application and be sure that you have taken advantage of any power saving features on the module.
Many of the X5 modules have power saving features that allow you to turn off unused channels, reduce clock rates or stop
data when the module is not in use.
Led Indicators
The X5-SDF has two LEDs available for use by application logic. By default, the Framework Logic image lights both LEDs
light when the Virtex-5 finishes configuration.
Custom logic designs can use it for any purpose. When using the stock firmware, the state of user logic LEDs can be
controlled using the Innovative::X5_400M::Led() property.
JTAG Scan Path
X5 modules have a JTAG scan path for the Xilinx devices on the module. This is used for logic development tools such as
Xilinx ChipScope and System Generator, and for initial programming of the PCI FPGA configuration FLASH ROM.
Nominally, there are two devices in the scan chain: the Virtex-5 device and the Coolrunner CPLD used to implement the
configuration support. Optionally, the SRAM devices may be included in the scan chain if JTAG access is needed for
debugging purposes.
Table 11. X5 JTAG Scan Path
JTAG Device
Number
Device Function
0 Virtex-5 Application logic
1 Coolrunner-II Configuration control
X5-GSPS User's Manual 41