> I would like to make a series of statements here and appreciate > anyone's comments as to their truth or idiocy. > > The IDE interface is not a true disk controller, like SCSI, it is more > like a memory mapping, with the the controller residing in the disk drive.
IDE interfaces look like a handful of I/O ports to the system. While the first IDE/ATA devices were simple clones of dumb AT HDD Controller cards, modern ATA systems speak a high-level protocol, allowing for things like tape drives, CD-ROM burners, and is a lot more like SCSI than it used to be... > Either: PCMCIA is a true independent bus with its own controller chip set. > Or. PCMCIA is a 68 pin adaptation which must piggy back on PCI et. Or both...and then some. PCMCIA is actually a broad spectrum...ranging from simple memory interfaces (like a flash or DRAM add-on card) to what's basically a "hot-plug" ISA bus, to a full-blown PCI bus. > SanDisk, et all, produce a flash memory device in the PCMCIA form factor. > This device has IDE emulation logic built in (this is true). Yes, there are flash memory devices in the PCMCIA form-factor. Some of these look like IDE drives, while some of them look like memory arrays. > SanDisk, et al, produce an adapter, converting the 68 pin flash memory > to a 50 pin IDE cable (also true). I don't know exactly which product you're talking about, but there are some PCMCIA flash memory cards that can be attached to an IDE bus with a mechanical adaptor. > A new form factor has emerged called Compact Flash (digital cameras, > 50 pin ) which can also be treated as an IDE drive ( also true). > This is NOT a PCMCIA device (???) Actually, compact Flash cards *CAN* be attached as a PCMCIA device, using a mechanical adapter. They can also be attached as an IDE device with a mechanical adapter, as well. Charles Steinkuehler http://lrp.steinkuehler.net http://c0wz.steinkuehler.net (lrp.c0wz.com mirror) _______________________________________________ Leaf-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/leaf-user
