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Adaptec 1542 B - Handbuch
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Einstellungen des Adaptec AHA-1540B/1542B
=========================================

Firmenseitiges Voreinstellung:

SCSI Adress             7
SCSI Parity             Enabled
Terminators             Installed
Terminator Power        Supplying
Synchronous Negotiation Disabled
DMA Channel             5
Interrupt Channel       11
AT Port Address         330H
AT BIOS Address         DC000H, Enabled
BIOS Wait State         0, Disabled
FD Controller           Enabled (AHA-1542B)
DMA Transfer Speed      5,7 MB/second
Auto Sense              Enabled

Jumper J5:
    o 1 - Synchronous Transfer negotiation enable
    o 2 - Diagnostics (used only at Adaptec)
    o 3 - SCSi Parity disable

    o 4   o x o x o x o x   *  SCSI Address
    o 5   o o x x o o x x   *  I.D. (SCSI disks
    o 6   o o o o x x x x   *  should be set
    ----------------------  *  for ID 0 and 1)
          7 6 5 4 3 2 1 0 <**

    o 7   o x o x           *  DMA Channel Select
   (x)8   o o x x           *  (See also Jumper J9)
    --------------          *
          7 6 5 0         <**


    o 9   o  x  o  x  o  x    * Interrupt
   (x)10  o  o  x  x  o  o    * Channel
    o 11  o  o  o  o  x  x    * Select
   -----------------------    * (see also Jumper J9)
          9 10  11 12 14 15 <**

   (x)12  o    x    o    x     * DMA Transfer Speed
    o 13  o    o    x    x     * In Mbytes/sec
    -----------------------    *
         5.0  5.7  6.7  8.0  <**

Jumper J6 - BIOS/Auto Sense Control

    Pin 1   2   3   4   5
       (x)  o   o   o   o

    1 BIOS Enable
    2,3,4 Not used
    5 Auto sense disable

Jumper J7 - Address Selection

    o 1     Floppy Secondary Address select (AHA-1542B only)

   (x)2 o   x   o   x   o   x     * AT I/O Port
    o 3 o   o   x   x   o   o     * Address
    o 4 o   o   o   o   x   x     * select in
    -------------------------     * Hexadecimal
       334 330 234 230 134 130  <**


    o 5 o   x   o   x     * BIOS wait state
    o 6 o   o   x   x     * Select
    -----------------     * in nanoseconds
        0  100 200 300  <**


    o 7 o       x       o       x        * BIOS Base
    o 8 o       o       x       x        * Address Select
    -----------------------------        * in Hexadecimal
        DC000   CC000   D8000   C8000  <**


Jumper J8 - Floppy Disk Selection (AHA-1542B only)

    pin 1   2   3   4   5   6   7   8
       (x) (x)  o  (x)  o  (x)  o   o

    1   - Floppy enable
    2,3 - DMA Request 2 or 3 select             Note:
    4,5 - DMA ACK 2 or 3 select                 On 1542BS100 series. If
    6,7 - INT Request 6 or 10 select            the floppy enable jumper
    8   - Dual Speed enable                     is removed, remove all
                                                jumpers from j8


Jumper J9 - DMA/Interrupt selection

    o   1   DMA Request 0 select
   (x)  2   DMA Request 5 select
    o   3   DMA Request 6 select
    o   4   DMA Request 7 select

    o   5   DMA ACK 0 select
   (x)  6   DMA ACK 5 select
    o   7   DMA ACK 6 select
    o   8   DMA ACK 7 select

    o   9   INT Request  9 select
    o  10   INT Request 10 select
    o  11   INT Request 11 select
    o  12   INT Request 12 select
    o  13   INT Request 14 select
    o  14   INT Request 15 select

