Introduction
1-3
memory as video memory. The 855GME has a built-in 3D graphics engine and its display / render core
frequency is up to 200MHz.
Table 1-1 Maximum Video Modes Supported
Resolution
Bit Depth/Colors
Vertical Refresh
640x480
24-bit/16M color
100 Hz
800x600
24-bit/16M color
100 Hz
1024x768
24-bit/16M color
100 Hz
1280x1024
24-bit/16M color
75 Hz
1600x1200
16-bit/65k color
60 Hz
Ethernet Controller
The 82546GB dual Giga-bit Ethernet controller provides a pair of 10/100/1000baseT Ethernet interfaces. The
82546GB contains both the MAC and the physical layer. The RJ-45 connectors on the module's front panel
provide auto-sensing for 10Base-T, 100Base and 1000Base -TX connections. Each RJ-45 connector has two
indicator lights. When mounted vertically, the top light is the link/activity light and the bottom light (the one
closer to the COM ports) is the 10Base-T/100Base-TX indicator. When it is off, the connection is 10Base-T;
when it is on, the connection is 100Base-TX. When the Ethernet is switched to the rear optional P0 no lights
are available to indicate link or speed. The use of the XVME 990-VR7 is required to connect RJ-45 cables to
the rear of the XVME 689-VR7 processor boards.
Storage Devices (Hard Drive, Floppy, Compact PCI and On-Board Drive)
EIDE and Floppy Drives
The XVME 689-VR7 primary IDE and floppy drive signals are routed through the P2 connector inner three
rows (available in a legacy 96-pin back plane), providing a simplified method of connecting up to two IDE
devices and one external floppy drive. The secondary IDE master signals support the optional on-board hard
drive or on-board Compact Flash site and the secondary IDE slave signals are not supported.
The XVME-689-VR7 is NOT compatible with the XVME-977 and/or the XVME-979 mass storage modules.
For applications that require mass storage outside the VMEbus chassis, the XVME 9090-VR7 rear transition
module plugs onto the VMEbus J2 connector. This module provides industry standard connections for IDE and
floppy signals. One floppy drive can be connected to the XVME 990-VR7. This drive may be 2.88 MB,
1.44 MB, 1.2 MB, or 720 KB, 360 KB in size. For more information on the XVME 990-VR7, refer to Chapter
5.
Summary of Contents for XVME-689-VR7
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