(Click here for a larger view of Adlink's ETX-AT)
Adlink's COM product line includes both ETX and COM Express modules. The company positions the former as being for those who wish to create PCI/ISA oriented designs, and the latter for those who want to create PCI/PCI Express designs.
Adlink's Express-AT is the ETX-AT's COM Express equivalent
(Click image for further information)At the end of October, the COM Express side of the operation gained the Atom N270, via the Express-AT (right), a 4.9 x 3.7 inch module that complies with the COM Express Type 2 format. Now, thanks to this month's release of the ETX-AT, ETX fans have an equivalent product to call their own.
Like the Express-AT, the ETX-AT is touted as offering a seven-year production-life guarantee. The 4.5 x 3.7 COM complies with the ETX 3.0 standard first introduced by Kontron in 2006, which means that while it has sprouted two SATA ports, its main connector remains compatible with any ETX carrier board.
A block diagram of Adlink's ETX-AT
(Click to enlarge)
As the above block diagram indicates, the ETX-AT sports the 1.6GHz N270 CPU so often found in netbooks (and also found in Kontron's own, competing ETX-DC COM). Naturally, then, the module also comes with the N270's fellow travelers, the 82945GSE northbridge and ICH7 southbridge.
Adlink cites Intel's own claim of a 2.5 Watt TDP for the N270, but doesn't confess that the 945GSE and ICH7M conspire to consume an additional 6.5 Watts. In any case, fanless operation of the ETX-AT is confirmed by the company, which lists optional heat spreaders and passive heatsinks for the module.
The ETX-AT comes with a single SO-DIMM slot, which supports up to 2GB of "mainstream" DDR2 memory. Unlike some COMs, this one doesn't have a CompactFlash slot, but it may be ordered with up to 4GB of soldered-on memory, says Adlink.
The two SATA ports mentioned earlier, visible on the top left of the ETX-AT, are the only "real-world" connectors to be found on the device. As expected for this type of module, the ETX-AT's other interfaces all reach the outside world via the ETX connector itself, and thence to an available dev board or customer-designed baseboard or carrier board.
According to Adlink, the ETX-AT's interfaces include support for dual independent displays, which can be LVDS-connected flat panels, analog CRTs, or TVs. The device also has four USB ports, two IDE PATA channels, two serial ports, a parallel port, a PS/2 keyboard/mouse interface, and audio I/O.
Finally, the ETX-AT has a TPM (trusted platform module), using the Infineon SLB9635TT chip. The COM supports 32-bit, 33MHz PCI and 16-bit ISA expansion buses, thanks to a ITE8888G bridge chip, Adlink adds.
Features and specifications cited by Adlink for the ETX-AT include:Processor -- Intel Atom N270 running at 1.6GHz, 512MB second-level cache
Memory -- Up to 2GB of DDR2 DRAM
Display -- LVDS flat panel, CRT, or television output with shared video memory; resolutions up to 2048 x 1536 on CRT and up to 1024 x 768 on televisions
Networking -- 10/100 Ethernet
Other I/O:2 x SATA
2 x serial
4 x USB 2.0
1 x parallel, shared between floppy/LPT
Line input/output and microphone input
1 x PS/2 for keyboard and mouse
1 x IrDAExpansion -- Interface support for ISA and 32-bit 33MHz PCIPower -- 5VDC, AT or ATX modes
Dimensions -- 4.5 x 3.7 inches (114 x 95mm)
Operating temperature -- 0 to 60 deg. CHenk van Bremen, a product director for Adlink's embedded division, said, "We expect many system integrators to use the ETX-AT to upgrade older generation modules used in currently running projects because of its better value, lower price and seven year warranted production lifetime."
Further information
Adlink did not provide pricing or availability information for the ETX-AT. Operating system support, on the other hand, is said to include Linux 2.6.x, Windows XP and XP Embedded, Windows Vista, Windows CE 5.0 and 6.0, and VxWorks.
More information about the ETX-AT may be found on the Adlink website, here, where registration is needed to view BSP details.
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