Pmc Add-On Card; Xmc Add-On Card; Sata Interface; Vme Support - SMART Embedded Computing Penguin Edge MVME250 Series Installation And User Manual

4.9.1

PMC Add-on Card

The MVME2502 PMC interface utilizes IDT's TSI384 as the PCIe/PCI-X bridge. It supports
up to 8.5Gbps (64 bits x 133MHz). The on-board switch S2-5 configures the Tsi384 to run
on either 100MHz or 133MHz, with 133MHz as default.
The MVME2502 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 on-board switch S2-4 should be set to ON.
The XMC add-on cards are required to operate at +5V or +12V (from carrier to XMC). The
MVME2502 provides +5V to the XMC VPWR (Variable Power) pins. The MVME2502 does
not provide +12V to the XMC VPWR pins. Voltage tolerances for VPWR and all carrier
supplied voltage (+3.3V, +12V, -12V) are defined by the base XMC standard.
4.10

SATA Interface

The MVME2502 supports an optional 2.5" SATA HDD. The connector interface is
compatible with the SATAMNKIT, which contains the following: one SSD/HDD, one SATA
board, screws, and a mounting guide. The SATA connector supports a horizontal mounted
SSD/HDD.
The MVME2502 uses Marvell's 88SE9125 SATA controller and supports up to 1.5Gbps,
3.0Gbps, or 6.0Gbps (SATA Gen 1). For status indicators, it has an on-board green LED,
D12 and D13 for SATA link, and SATA activity status respectively.
4.11

VME Support

The MVME2502 operates in either System Controller (SCON) mode or non-SCON mode,
as determined by the switch setting of S1-1 and S1-2.
The P2020 x1 link is used for the VME backplane connectivity through the Tsi384
(PCI-E/PCI-X) and Tsi148 (PCI-X/VMEBus) bridges.
See
VMEBus P1 Connector on page 53
information.
MVME2502 Installation and Use (6806800R96L)
Functional Description
and
VMEBus P2 Connector on page 54
for more
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