Adaptec 1742A User Manual

Contents

Reconnect is the function that occurs when a target selects aninitiator to continue an operation after a disconnect.EEPROMElectrically-Erasable Programmable Read Only Memory. An inte-grated circuit used to store the host adapter firmware, whichallows both mode download and firmware upgrade while in-circuit.EISAExtended Industry Standard Architecture. A superset standard ofthe 8- and 16-bit ISA standard which allows 32 bits of data to betransferred across the bus at up to 33 MBytes/second.Enhanced ModeThe operation mode of the AHA-1740A/1742A/1744 to take full ad-vantage of the addressing range and register set available underEISA. It is not compatible with earlier revisions of ASPI manag-ers and drivers.EPROMErasable Programmable Read Only Memory. An integrated cir-cuit used to store the host adapter BIOS.FIFOFirst In/First Out. A queuing order in which items are removedfrom the queue for execution in the same order in which they areplaced in the queue. An integrated circuit that buffers data insuch a manner that each byte placed in the buffer is removedfrom the buffer in the same order.FirmwareThe software that controls and manages the host adapter. It isfirm as opposed to soft because it is designed into the host adapt-er and cannot be modified by the user.HostA microcomputer in which a host adapter is installed. The hostuses software to request the services of the host adapter in trans-ferring information to and from peripheral devices attached to theSCSI bus connector of the host adapter.adaptec AHA-1740A/1742A/1744GL-4