User Manual
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.... 2.2 PREPARATION The following diagram shows the approximate location of each item. AHA-1540B/1542B 2-1 adaptec After opening the shipping container, use the packing slip to a SCSI target. Since the AHA-1540B/1542B is sensitive to static shock, it came for the Adaptec AHA-1540B/1542B AT-to-SCSI host adapter. Retain the shipping container and packing material for damage incurred...
.... 2.2 PREPARATION The following diagram shows the approximate location of each item. AHA-1540B/1542B 2-1 adaptec After opening the shipping container, use the packing slip to a SCSI target. Since the AHA-1540B/1542B is sensitive to static shock, it came for the Adaptec AHA-1540B/1542B AT-to-SCSI host adapter. Retain the shipping container and packing material for damage incurred...
User Manual
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JUMPER LOCATIONS 2.3 JUMPER CONFIGURATION All of the jumpers have been preset at the factory to ensure proper system operation with the majority of AT bus systems. This information is provided to help the OEM or system integrator configure the system properly if other option boards present conflicts or if more than one AHA-154X board will be installed in the same system. AHA-1540B/1542B 2-2 adaptec Section Two Preparation and Configuration Pin I MICROCODE IIIIIIIMINI J8 J9 Pin 1 BIOS = AHA-15408 Default FIGURE 2-1.
JUMPER LOCATIONS 2.3 JUMPER CONFIGURATION All of the jumpers have been preset at the factory to ensure proper system operation with the majority of AT bus systems. This information is provided to help the OEM or system integrator configure the system properly if other option boards present conflicts or if more than one AHA-154X board will be installed in the same system. AHA-1540B/1542B 2-2 adaptec Section Two Preparation and Configuration Pin I MICROCODE IIIIIIIMINI J8 J9 Pin 1 BIOS = AHA-15408 Default FIGURE 2-1.
User Manual
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... Pin-pair 1 of jumpers located under the internal 50-pin connector J2. If any attached AHA-15408/1542B 2-3 adaptec If the jumper is the synchronous negotiation enable jumper. The AHA-1540B/1542B will initiate SCSI synchronous negotiation during initialization, or after a SCSI reset if this jumper is the large horizontally-oriented block of jumper block J5 is...
... Pin-pair 1 of jumpers located under the internal 50-pin connector J2. If any attached AHA-15408/1542B 2-3 adaptec If the jumper is the synchronous negotiation enable jumper. The AHA-1540B/1542B will initiate SCSI synchronous negotiation during initialization, or after a SCSI reset if this jumper is the large horizontally-oriented block of jumper block J5 is...
User Manual
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... 45 6 00 0 x0 0 0x 0 xx 0 00 x x0 x 0x x xx x SCSI ADDRESS 7* 6 5 4 3 2 1 0 x = Jumper Installed Default AHA-1540B/1542B 2-4 adaptec If this jumper is a factory diagnostic jumper. The SCSI parity checking is disabled if this jumper is installed, the firmware will loop through the power on the SCSI bus. 2.3.1.2 Diagnostic Jumper Pin-pair 2 of jumper block J5 is...
... 45 6 00 0 x0 0 0x 0 xx 0 00 x x0 x 0x x xx x SCSI ADDRESS 7* 6 5 4 3 2 1 0 x = Jumper Installed Default AHA-1540B/1542B 2-4 adaptec If this jumper is a factory diagnostic jumper. The SCSI parity checking is disabled if this jumper is installed, the firmware will loop through the power on the SCSI bus. 2.3.1.2 Diagnostic Jumper Pin-pair 2 of jumper block J5 is...
User Manual
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...selection jumpers consist of pin pairs 7 and 8 located in selecting the DMA channel. Default is DMA Request 5. This jumper set up by the AHA-1540B/AHA-1542B, channels 0, 5, 6, and 7. The jumper settings for use by using the jumper blocks and pin-pairs as previously described. The DMA channel ...J5. Default is DMA Acknowledge 5. These are J5 and J9. Jumper set by these jumpers according to be used by the AHA-1540B/1542B according to the following diagrams: AHA-1540B/1542B 2-5 adaptec Pin pair 1 is set J9, pairs 1 through 8, selects the DMA ACK signal to be used by the...
...selection jumpers consist of pin pairs 7 and 8 located in selecting the DMA channel. Default is DMA Request 5. This jumper set up by the AHA-1540B/AHA-1542B, channels 0, 5, 6, and 7. The jumper settings for use by using the jumper blocks and pin-pairs as previously described. The DMA channel ...J5. Default is DMA Acknowledge 5. These are J5 and J9. Jumper set by these jumpers according to be used by the AHA-1540B/1542B according to the following diagrams: AHA-1540B/1542B 2-5 adaptec Pin pair 1 is set J9, pairs 1 through 8, selects the DMA ACK signal to be used by the...
User Manual
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The AT interrupt channel jumpers consist of pin pairs 9, 10, and 11 in selecting the AT interrupt channel. Jumper set J9 selects the AT interrupt channel to the following table. al as a...Interrupt Channel Select bit 1 Interrupt Channel Select bit 2 J5 INTERRUPT CHANNELS PIN-PAIR 9 10 11 00 0 x0 0 0x 0 xx 0 00 x x0 x INTERRUPT CHANNEL 9 10 11* 12 14 15 0 0 0 0 0 0 0 0 0 x 0 0 0 J5 0 0 0 0 0 0 0 0 0 x 0 0 0 rn cs, a- b: x = Jumper Installed * = Default AHA-1540B/1542B 2-7 adaptec Pin pair 1 is interrupt channel 11. The interrupt channel used by these jumpers according ...
The AT interrupt channel jumpers consist of pin pairs 9, 10, and 11 in selecting the AT interrupt channel. Jumper set J9 selects the AT interrupt channel to the following table. al as a...Interrupt Channel Select bit 1 Interrupt Channel Select bit 2 J5 INTERRUPT CHANNELS PIN-PAIR 9 10 11 00 0 x0 0 0x 0 xx 0 00 x x0 x INTERRUPT CHANNEL 9 10 11* 12 14 15 0 0 0 0 0 0 0 0 0 x 0 0 0 J5 0 0 0 0 0 0 0 0 0 x 0 0 0 rn cs, a- b: x = Jumper Installed * = Default AHA-1540B/1542B 2-7 adaptec Pin pair 1 is interrupt channel 11. The interrupt channel used by these jumpers according ...
User Manual
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... CD CD C C C C C C CCCCCC ( CO CO CO CD CO 8 8- 8cr Qcr •cr cc cr 000 Ox 0 00 0000x 000 x = Jumper Installed IRQ 9, 10, 11, 12, 14, 15 - Installing jumper shunts as shown below will set the default DMA transfer speed. This speed may also be installed in J5...jumper settings. One of four default DMA transfer speeds. (See Appendix A for any particular system by using the Host Adapter command Set Transfer Speed. AHA-15408/15428 2-8 adaptec Section Two Preparation and Configuration J9 0 x 000x Ox 000x C O T- The default is selected after power on or after a hard reset occurs...
... CD CD C C C C C C CCCCCC ( CO CO CO CD CO 8 8- 8cr Qcr •cr cc cr 000 Ox 0 00 0000x 000 x = Jumper Installed IRQ 9, 10, 11, 12, 14, 15 - Installing jumper shunts as shown below will set the default DMA transfer speed. This speed may also be installed in J5...jumper settings. One of four default DMA transfer speeds. (See Appendix A for any particular system by using the Host Adapter command Set Transfer Speed. AHA-15408/15428 2-8 adaptec Section Two Preparation and Configuration J9 0 x 000x Ox 000x C O T- The default is selected after power on or after a hard reset occurs...
User Manual
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... * = Default 2.3.2 Jumper Block J6 BIOS Enable Disable Auto Sense CV CI 2 co 2 Cl) 2 to be read. when installed, the AHA-1540B will not automatically issue a Request Sense Command when a check condition is jumper removed, Auto Sense enabled. Default is received from the... SCSI target. Section Two Preparation and Configuration J5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 x x 0 0 x x 0 0 0 0 0 0 CM C7 a- Disable Auto Sense - x = Jumper...
... * = Default 2.3.2 Jumper Block J6 BIOS Enable Disable Auto Sense CV CI 2 co 2 Cl) 2 to be read. when installed, the AHA-1540B will not automatically issue a Request Sense Command when a check condition is jumper removed, Auto Sense enabled. Default is received from the... SCSI target. Section Two Preparation and Configuration J5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 x x 0 0 x x 0 0 0 0 0 0 CM C7 a- Disable Auto Sense - x = Jumper...
User Manual
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...130, 334, 230, 234, 130, and 134 (hex). AHA-1540B/1542B 2-10 adaptec The default address is the topmost pair of pins. These port... addresses may be used by the BIOS. •S• Section Two Preparation and Configuration 2.3.3 Jumper Block J7 Jumper block J7 is located near the external SCSI connector ...J7. floppy controller responds to the standard AT I /O ports required by the AHA-1540B/1542B is selected by the jumpers in pin pair 1 of J7, the floppy disk controller (AHA-1542B) will respond...
...130, 334, 230, 234, 130, and 134 (hex). AHA-1540B/1542B 2-10 adaptec The default address is the topmost pair of pins. These port... addresses may be used by the BIOS. •S• Section Two Preparation and Configuration 2.3.3 Jumper Block J7 Jumper block J7 is located near the external SCSI connector ...J7. floppy controller responds to the standard AT I /O ports required by the AHA-1540B/1542B is selected by the jumpers in pin pair 1 of J7, the floppy disk controller (AHA-1542B) will respond...
User Manual
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... may be driven inactive on the bus during BIOS reads. x x x DELAY (ns) 0 (IOCHRDY not driven)* 100 200 300 x = Jumper Installed - = Jumper Not Installed = Default AHA-1540B/1542B 2-11 adaptec Section Two Preparation and Configuration J7 Pin pair 2 Pin pair 3 Pin pair 4 0 0 Port Address Select bit 0 X X Port Address Select bit 1 0 0 Port Address Select bit...
... may be driven inactive on the bus during BIOS reads. x x x DELAY (ns) 0 (IOCHRDY not driven)* 100 200 300 x = Jumper Installed - = Jumper Not Installed = Default AHA-1540B/1542B 2-11 adaptec Section Two Preparation and Configuration J7 Pin pair 2 Pin pair 3 Pin pair 4 0 0 Port Address Select bit 0 X X Port Address Select bit 1 0 0 Port Address Select bit...
User Manual
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No Jumper Installed * = Default 2.3.3.5 Jumper Block J8 (AHA-1542B only) Jumper Block J8 is not present in the 1540B. It is used to configure the on-board floppy disk controller and is located at the lower center of the address space reserved for the on-board BIOS is selected by pin pairs ...7 and 8 on J7. x =Jumper Installed n_ AI-IA-15408/1542B 2-12 adaptec Section Two Preparation and Configuration 2.3.3.4 Board BIOS...
No Jumper Installed * = Default 2.3.3.5 Jumper Block J8 (AHA-1542B only) Jumper Block J8 is not present in the 1540B. It is used to configure the on-board floppy disk controller and is located at the lower center of the address space reserved for the on-board BIOS is selected by pin pairs ...7 and 8 on J7. x =Jumper Installed n_ AI-IA-15408/1542B 2-12 adaptec Section Two Preparation and Configuration 2.3.3.4 Board BIOS...
User Manual
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...dual speed spindle is jumper in the system, the floppy controller on the AHA-1540B/1542B must also be installed. Default is jumper in Pin Pair position 6, Interrupt Channel 6. DREQ 2,3 - Default is jumper in Pin Pair position 4, DACK 2. IRQ 6,10 - If both the internal and the external cable should be... internal or an external cable is used (but not both) then the farthest end of both an internal and an external SCSI cable is another floppy controller in Pin Pair position 2, DREQ 2. AHA-1540B/1542B 2-13 adaptec selects either interrupt channel 6 or interrupt channel...
...dual speed spindle is jumper in the system, the floppy controller on the AHA-1540B/1542B must also be installed. Default is jumper in Pin Pair position 6, Interrupt Channel 6. DREQ 2,3 - Default is jumper in Pin Pair position 4, DACK 2. IRQ 6,10 - If both the internal and the external cable should be... internal or an external cable is used (but not both) then the farthest end of both an internal and an external SCSI cable is another floppy controller in Pin Pair position 2, DREQ 2. AHA-1540B/1542B 2-13 adaptec selects either interrupt channel 6 or interrupt channel...
User Manual
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AFIA-1540B/1542B 2-14 adaptec Default is supplying terminator power, then Fl may optionally be configured to supply terminator power to a single SCSI bus. No more than five SCSI devices should be removed. If another SCSI device is Fl installed with the AHA-1540B/1542B supplying the terminator power. Section Two Preparation and Configuration 2.3.5 SCSI Terminator Power Fuse, Fl, controls the terminator power.
AFIA-1540B/1542B 2-14 adaptec Default is supplying terminator power, then Fl may optionally be configured to supply terminator power to a single SCSI bus. No more than five SCSI devices should be removed. If another SCSI device is Fl installed with the AHA-1540B/1542B supplying the terminator power. Section Two Preparation and Configuration 2.3.5 SCSI Terminator Power Fuse, Fl, controls the terminator power.