Artesyn MVME2500 ECC Installation and Use (August 2014) - Manual (Page 78)

Functional Description
MVME2500-ECC Installation and Use (6806800N30F) 78
5. IEEE Standard P1386-2001 for Standard for Common Mezzanine Card Family
6. IEEE Standard P1386.1-2001 for Standard Physical and Environmental Layer for PCI
Mezzanine Card.
7. VITA 42 for XMC
8. VITA 42.3 , PCIe for XMC
PMC/XMC sites are keyed for 3.3V PMC signaling. PMC and XMC add-on cards must have a hole
in the 3.3 V PMC keying position in order to be populated on the MVME2500-ECC. The XMC
specification accommodates this since it is expected that carrier cards will host both XMC and
PMC capable add-on cards.
MVME2500-ECC utilizes the P20x0 x2 link PCI Express interface. It is designed such that the
same PCI-E interface is used for either PMC or XMC through Pericom’s PI2PCIE2412. It is PCI-E
Gen2 compliant with four differential channel input and 2:1 MUX switch with single enable. The
enable pin is controlled by FPGA through onboard switch.
The onboard switch S2-4 determines the direction of the PCI-E MUX switch. The default setting
"OFF" routes the differential lines to the PMC. Otherwise, it is routed to the XMC connector.
4.9.1 PMC Add-on Card
The MVME2500-ECC PMC interface utilizes IDT’s TSI384 as the PCie/PCI-X bridge. It can
support up to 8.5 Gbps (64 bits x 133 Mhz). The onboard switch S2-5 configures the TSI384 to
run on either 100 Mhz or 133 Mhz, with 133 Mhz as default.
The MVME2500-ECC supports multi-function PMCs and processor PMCs (PrPMCs). The PMC
site has two IDSELs, two REQ/GNT pairs, and EREADY to support PrPMC as defined by VITA39.
4.9.2 XMC Add-on Card
The x2 links the PCI-E Gen 1 and is directly routed to the P15 XM connector through Pericom
MUX Switch. The onboard switch S2-4 should be set to "ON".
XMC add-on cards are required to operate at +5V or +12V (from carrier to XMC). The
MVME2500-ECC provides +5V to the XMC VPWR (Variable Power) pins. The MVME2500-ECC
does not provide +12V to the XMC VPWR pins. Voltage tolerances for VPWR and all carrier
supplied voltage (+3.3 V, +12 V, -12 V) are defined by the base XMC standard.