Features; Fast Data Transfer Rates; Maximum Off-Loading The Host Cpu; Fully Disk Array Capable - Adaptec AHA-2740W User Manual

AHA-2740W/2742W/2744W User's Guide
Like all EISA I/O cards, the AHA-2740W/2742W/2744W does not
have jumpers to change various EISA configuration options. These
options are changed via the EISA configuration utility provided
with every EISA system; however, the AHA-2742W and
AHA-2744W do have a single jumper (J1) that is used to enable or
disable the onboard floppy controller.

Features

Fast Data Transfer Rates

16-bit Wide SCSI data transfer
Up to 33 MBytes/sec burst on EISA bus enabled by large
256-byte FIFO
4.0 MBytes/sec asynchronous Wide SCSI data rate
10.0 MBytes/sec synchronous Wide SCSI data rate
20.0 MBytes/sec synchronous Fast/Wide SCSI data rate

Maximum Off-loading the Host CPU

Onboard sequencer (SCSI PhaseEngine) automates all SCSI
protocol
Low SCSI processing overhead
Bus Master DMA implementation
Task scheduling and message-based communication
Programmable interrupts
32-, 16-, and 8-bit host bus data transfer

Fully Disk Array Capable

Able to boot from any drive on the SCSI bus
Background processing permits smooth error recovery
Extensive support from leading disk array vendors

Advanced Fast SCSI-2/SCSI-3 Implementation

Concurrent support of both 8-bit SCSI-2 and 16-bit SCSI-3 devices
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Current Date: 8/3/94
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ECN Date: 8/9/94
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