Nine-Track Tape Controller; Table 8-3 Selecting Disk Controller Base Address - Sun Microsystems Sun Workstation 100U System Manager's Manual

Sun 100/150 Installation Manual
Hardware Configuration and Expansion
• On DIP switch Sl, set switch #8
ON,
set #7
OFF,
selecting 512 byte sectors, 34 sectors
per track.
• Switches #1-6 on DIP switch SI determine the address of the controller in Multibus I/O
space. They supply the bits: 654321xx of the 8-bit Multibus I/O address. The board can be
written to at four consecutive addresses, and read from at the lowest of the four. The Sun
Workstation only
uses
addresses Ox40, Ox44, Ox48, or Ox4C. These addresses are obtained
by setting the switches on DIP switch SI as follows:
Table 8-3: Selecting Disk Controller Base Address
De,ired Switch Setting'
Addre"
Switch
Switch Switch Switch Switch Switch
6 5
4
3
2 1
Ox40 Off On
Off
Off
Off
Off
Ox44 Off
On Off Off Off On
Ox48 Off On
Off Off On Off
Ox4C
Off On Off Off On On
Normally, the first Interphase controller in the system is configured at address
Ox
40 by set-
ting switch #5 on DIP switch SI ON and all others OFF. If you also have a Xylogics
board in your system, configure the Interphase instead for address Ox48 by setting switch
#2 ON and all others OFF.
•
Finally, the InterphMe controller boa.rd is normally configured to have lower Multibus
priority than the CPU board by installing jumper E to F.
Sun recommends a maximum of one Interpnase disk controller board per system.
For the full specification and detailed description of the disk controller, see the supplied docu-
ment: SMD
elBO
Storage Module Controll'er/ Formatter V,er', Guide.
8.8. Nine-Track Tape Controller
If your Sun system is shipped with a nine-track tape unit, there should be a tape controller for
that subsystem installed in the card cage. The tape controller is a T APEMASTER board from
Computer Products Corporation. The TAPEMASTER nine-track tape controller board has two
50-pin cable connectors on its outside edge (viewed installed in the card cage).
As shipped, the TAPEMASTER should be configured correctly for your Model 100U or 150U.
If you are installing the board, please verify the following:
• For a 100U, locations 1 to 2 are jumpered; they must be jumpered for serial backplanes.
• For a 150U, locations 1 to 2 are
Dot
jumpered; they should be jumpered for serial back-
planes only.
• For both models; locations 3 to 4 and locations 52 to 53 must be jumpered for proper han-
dling of CBRQ/: if these locations are jumpered, the tape controller will surrender the bus
to a higher-priority master when that master activates CBRQf. If you configure the board
in any other fa5hion, you mU5t a150 configure your Sun-2 CPU 50 that it gives up the Mul-
tibus after every cycle by installing the jumper at location J701 on the CPU board.
Revision
Ii
of 12 March 1984
8-13