Technical data

Functional Description
MVME2502 Installation and Use (6806800R96B)
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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 can support a horizontal mounted SSD/HDD.
The MVME2502 uses Marvell's 88SE9125 SATA controller and supports up to 1.5 Gbps, 3.0
Gbps, or 6.0 Gbps (SATA Gen 1). For status indicators, it has an onboard green LED, D12 and
D13 for SATA link and SATA activity status respectively.
4.11 VME Support
The MVME2502 can operate 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 49 and VMEBus P2 Connector, on page 51 for more
information.
4.11.1 Tsi148 VME Controller
The VMEbus interface for the MVME2502 is provided by the Tsi148 VMEbus controller. The
Tsi148 provides the required VME, VME extensions, and 2eSST functions. TI
SN74VMEH22501transceivers are used to buffer the VME signals between the Tsi148 and the
VME backplane. Refer to the Tsi148 user's manual for additional details and/or programming
information.
4.12 USB
The MVME2502 processor implements a dual-role (DR) USB 2.0 compliant serial interface
engine. DC power to the front panel USB port is supplied using a USB power switch which
provides soft-start, current limiting, over current detection, and power enable for port 1.