�����������������������������������������������������������������������ͻ � Adaptec, Incorporated AHA-1540B/42B � �����������������������������������������������������������������������͹ � LED FLOPPY HARD DRIVE F1 � � ������������������������������������Ŀ � � Floppy (34 pins) �.... 1::::::: 1::::::::::::: ڿ ����� � � INT.HD.(50 pins) � ��2�� ��3��ô ���Ŀ � � EXT.HD.(50 pins) � ��5�� �� � � � � � � J5 1:::::::::::: 1: � � �EXT. � � ��2�� SCSI BUS � J6 1:::: :: � � �SCSI � � Term. Resistors � �����Ŀ ������Ŀ :: � � � � � � �uCODE� J8 1:::::: � BIOS � J7 � � � � � F1: 1.5A, 125V � ������� J9 1:::::::: �������� ����� � � Term. Power Fuse �����������Ŀ ڿ ���ٺ � � ����������������������� � � � � � INTERFACE: ISA(AT)->SCSI-2 � � CONTROLS: 2 Floppy Drives (1542B only)(360KB, 720KB, 1.2MB, 1.44MB)� � 7 SCSI Devices � � � � J5: General Control � � J5-1: Synchronous Negotiation Enable: *Disabled: (no Jumper) � � Enabled: J5-1 Jumpered � � � � J5-2: Diagnostics (Factory use ONLY): *Disabled: (no jumper) � � � � J5-3: SCSI Parity Bit: *Enable Parity: (no jumper) � � Disable Parity: J5-3 Jumpered � � � � J5-4,5,6: SCSI Address: 0 1 2 3 4 5 6 7 (7 is Default) � � 4 x - x - x - x - � � 5 x x - - x x - - (x = Jumpered) � � 6 x x x x - - - - � � � � J5-7,8: DMA Channel: 0 5 6 7 (5 is Default) � � 7 x - x - � � 8 x x - - � � � � J5-9,10,11: Interrupt Chan.: 9 10 11 12 14 15 (11 is Default) � � 9 - x - x - x � � 10 - - x x - - � � 11 - - - - x x � � � � J5-12,13: DMA Transfer Speed: 5.0 5.7 6.7 8.0 (5.7 is � � 12 - x - x Default) � � 13 - - x x � � � � J6: BIOS/Auto Sense Control: 1 x 1: BIOS Enable � � 2 - 2,3,4: Not Used � � 3 - 5: Auto Sense disable � � 4 - � � 5 - (1 is Default) � � � � � �����������������������������������������������������������������������ͼ �����������������������������������������������������������������������ͻ � AHA-1540B,1542B Page 2 � �����������������������������������������������������������������������͹ � � � J7: Address Selection � � � � J7-1: Floppy Secondary Address (Default is not jumpered) � � � � J7-2,3,4: AT I/O Port Addr.: 334 330 230 134 130 � � 2 - x - x - (Default � � 3 - - x x - is 330h) � � 4 - - - x x � � � � J7-5,6: BIOS Wait State (ns): 0 100 200 300 � � 5 - x - x (Default � � 6 - - x x is 0) � � � � J7-7,8: BIOS Address: DC000 CC000 D8000 C8000 � � 7 - x - x (Default � � 8 - - x x is DC000) � � � � J8: Floppy Disk Selection: 1: Floppy Enable (on Enabled ) � � 2,3: DMA REQ. (2 or 3) (2 DMA REQ.2) � � (1542B only) 4,5: DMA ACK. (2 or 3) (4 DMA ACK.2) � � 6,7: INT.REQ. (6 or 10) (6 INT.REQ.6) � � 8: Dual Speed Enable (off Disabled) � � � � J9: DMA/Interrupt: 1,2,3,4: DMA REQ. (0,5,6,7) (2 DMA REQ.5) � � 5,6,7,8: DMA ACK. (0,5,6,7) (6 DMA ACK.5) � � 9,10,11,12,13,14: INT.REQ. (9,10,11, � � 12,14,15) (11 INT.REQ.11) � � � ��������������������������͸ Additional Info ��������������������������͹ � � � This Host Adapter may also be ordered with a high-density SCSI-2 � � external connector, as part no: 1540B100 or 1542B100. � � � � SCSI bus terminators MUST be located at each end of the SCSI bus. � � If using internal SCSI peripherals only, the terminators on the H.A. � � must remain in place, and the device at the farthest point must also � � have it's terminators in place. All devices between must have their � � terminators removed. If using internal AND external peripherals, � � the devices at the end of the internal, and external cables should � � retain their terminators, and all those between, including the Host � � Adapter, should have theirs removed. � � � � Adaptec has added support for drives larger than 1GB with their � � 3.20 BIOS and uCODE. When correctly set up, the host adapter will � � automatically select the correct translation for the drive. The � � translation for drives over 1GB increases the heads. � � � � The 154x series is a Bus Mastering Host Adapter, and is well-suited � � for multi-tasking Operating Systems, such as UNIX and OS/2. � �����������������������������������������������������������������������ͼ