Industrial board vendor Concurrent Technologies (Ann Arbor, Mich.) is broadening its PowerPC-based VME64x product range with the introduction of a line of 6U-sized boards called the VP 742/20x Series.
These single-slot boards are designed around Motorola MPC7455 PowerPC G4 microprocessors. As such, Concurrent's VME bus boards offer processor speed options of 800-MHz or 1-GHz, as well as memory options of up to 1.25-Gbytes of 266-MHz DDR SDRAM (with ECC error correction). All are fan-free.
Lots Of I/O
A VP 742/20x also includes a lot of on-board I/O, as the block diagram (below) attests. Interfaces are available for a PMC site, Ultra-160 SCSI, dual Gigabit Ethernet, graphics, keyboard, and a mouse. The graphics are implemented by an Asiliant Technologies 69030 chip, providing 4-Mbytes of video memory, and supporting screen resolutions up to 1600 x 1200-pixels with up to 16 million colors.
Click for larger block diagram
Targeting applications in military, aerospace, scientific, and telecommunications industries, Concurrent also offers more hardened versions for harsher applications. Its 800-MHz VP 742/201-E, for example, operates across the -25°C to +70°C range. Options are available for conformal coating, too.
As well as low power, the MPC7455 boards also use Motorola's 128-bit so-called AltiVec technology, with 64-kbytes of L1 (Level 1) cache, and 256-kbytes L2 cache. 2-Mbytes of backside L3 cache is also available.
You also get L1 cache locking. It enables specific key performance algorithms or code. An increased number of block address translation registers also enables embedded operating systems to support high-speed mapping of additional large data blocks.
Marvell PCI Bridging
The boards' MPC7455 microprocessors also connect to Marvell Discovery II (MV64360) PCI bridges. This silicon provides dual Gigabit Ethernet channels (they're independent of the PCI buses), two PCI buses, and 2 Mbytes of NVSRAM. It also connects to 64 Mbytes of 32-bit-wide applications flash.
A VP 742/20x also supports a 64-bit 66-MHz PMC site with front panel I/O (rear I/O is available via an optional P0 connector). You also get a USB (Universal Serial Bus) port, two asynchronous/synchronous RS-232/RS-422/RS-485 serial ports, and four 32-bit general-purpose timers. There's also a 32-bit CPU decrementer, and a 64-bit CPU timebase, as well as a realtime calendar/clock.
The system also uses a Tundra Universe II VME interface. An optional P2 or P2/P0 breakout is also available. A JTAG diagnostic port is also included.
Supports Many Operating Systems
A VP 742/20x will also support a range of operating systems. At the moment, Concurrent Technologies supports VxWorks, Linux, and LynxOS. Remote booting over the Ethernet is also possible.
For more information, contact Concurrent Technologies Inc., 3840 Packard Rd., Ann Arbor, Mich. 48108. Phone: 734-971-6309. Fax: 734-971-6350. E-mail: firstname.lastname@example.org. Or, contact Jane Annear, Commercial Director, Concurrent Technologies PLC, 4 Gilberd Court, Newcomen Way, Colchester, Essex CO4 9WN, United Kingdom. Phone: (+44) 1206 752626. Fax: (+44) 1206 751116. E-mail: email@example.com.
Learn more at Concurrent's Web site.