XVME-6500
USER
’S MANUAL
Acromag, Inc. Tel: 248-295-0310
- 36 -
http://www.acromag.com
- 36 -
www.acromag.com
In addition to the air-cooled heatsink assemblies, special SODIMM heat
spreaders are used to remove heat from the SODIMM modules, as well as
hold them tightly secured to the board.
To remove the SODIMM modules, simply remove the 4 screws per SODIMM
from the back side of the PCB.
3.15 Watchdog
The XVME-6500 features a software-triggered multi-stage watchdog solution.
When the watchdog timer expires the module by default causes a system
reset.
For further information on the Watchdog feature, refer to
The APTIO Haswell
Core BIOS Manual For Acromag Products.
3.16 Expansion Sites
The XVME-6500 features two expansion sites that allow the board to be
customized for a wide array of customer applications.
The Lower Site accepts either PMC or XMC modules, with the module's P4
user I/O routed as 100ohm differential pairs to the optional P0 connector on
the XVME-6500. A build option is available to instead route the I/O from the
module's P6 connector to the XVME-6500's P0 connector. Please consult
factory regarding this option.
The Upper Site accepts PMC or XMC modules, with the module's P4 user I/O
routed as 100ohm differential pairs to the P2 connector on the XVME-6500. A
build option is available to instead add a second serial port, 4 General Purpose
Digital Inputs, and 4 General Purpose Digital Outputs to the XVME-6500's P2
connector, making the XVME-6500 compatible with the P2 I/O of the XVME-
6300. Please consult factory regarding this option.
3.16.1 XMC Modules
XMC modules can be used in either or both Upper and Lower Expansion Sites
on the XVME-6500, however if one XMC module is used in conjunction with
one PMC module the XMC module must be in the Lower Site.
Each Expansion Site connects to the XMC module with a x8 PCIe interface.
While the connection itself supports Gen2 speeds, please note that the XMC
connectors are only rated for Gen1 speeds, limiting the supported speed of
the XMC modules to Gen1. A build option is available for the XMC connectors
to instead be VITA 61 connectors, which do support Gen2 speeds, however
this limits the site(s) to having only VITA 61 modules supported. Please
consult factory regarding this option.
