Adaptec AHA-1540 User Manual
Adaptec AHA-1540 - Storage Controller Fast SCSI 10 MBps Manual
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Adaptec AHA-1540 manual content summary:
- Adaptec AHA-1540 | User Manual - Page 1
adaptec, inc. AHA-1540 User's Manual AT-to-SCSI Host Adapter - Adaptec AHA-1540 | User Manual - Page 2
until it is configured and ready to be installed in your system. 3.2 INSTALLATION The following section details the installation procedure for the Adaptec AHA-1540 AT to SCSI host adapter. The installation of the board consists of setting the various on-board jumpers, inserting the board into - Adaptec AHA-1540 | User Manual - Page 3
checking is disabled if this jumper is installed. The default is parity checking enabled. 3.2.3 SCSI Terminators RN6 and RN7 are the SCSI terminators. If the AHA-1540 is not the first or the last SCSI device in a string of SCSI devices, or if in-line terminators are used, then both of these - Adaptec AHA-1540 | User Manual - Page 4
is installed. If the jumper is not installed, the AHA-1540 will still support synchronous SCSI transfers, but the target must initiate the 7 8 Channel X X 0 - X 5 X - 6 - - 7 X = Jumper Installed J1 7 8 0 0 0 0 0 0 0 X 0 0 0 0 0 0 0 0 0 0 X 0 0 0 pin pair 1 AHA-1540 3 - 3 adaptec - Adaptec AHA-1540 | User Manual - Page 5
2 0 0 X 0 00X0 I- Pin Pair 1 Jumper set J6 selects the DMA REQ signal to be used by the AHA-1540. This jumper set is located near the left corner of the small AT bus connector. Pin pair 1 is the right most 0 5 6 7 X = Jumper Installed J6 2 0 0 X 0 0 0 X 0 Pin Pair 1 AHA-1540 3 - 4 adaptec - Adaptec AHA-1540 | User Manual - Page 6
0 0 0 0 0 0 0 0 X 0 pin pair 1 Jumper set J8 selects the AT interrupt channel to be used by the AHA-1540. This jumper set is located just above the small AT bus connector. Pin pair 1 is the right most pair of pins. The Installed J8 3 0 0 0 X 0 0 0 0 0 X 0 0 I-Pin Pair 1 AHA-1540 3 - 5 adaptec - Adaptec AHA-1540 | User Manual - Page 7
Port Address The starting address of the block of four I/O ports required by the AHA-1540 is selected by the jumpers in jumper block J9. This jumper set is located X = Jumper Installed, Jumper Deasserts the Address Bit. Valid Addresses Are: 334, 330, 234, 230, 134, 130 AHA-1540 3 - 6 adaptec - Adaptec AHA-1540 | User Manual - Page 8
not result in immediate system problems. If it is necessary to change the state of this jumper after the system has been configured, the SCSI hard disk must also be re-formatted. Contact your system manufacturer if in doubt on how your system implements these address lines. AHA-1540 3- 7 adaptec
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adaptec,
inc.
AHA-1540
User's
Manual
AT
-to
-SCSI
Host
Adapter