Mac DOS: Description of the TOPS FlashCard for the PC (37924)
The information in this article applies to:
- Microsoft Mail for AppleTalk Networks, MS-DOS workstation 3.0
- Microsoft Mail for AppleTalk Networks, MS-DOS workstation 3.1
This article was previously published under Q37924 SUMMARY
The following is a description of the TOPS FlashCard for the PC, which is
available from Sun Microsystems, Inc. For more information on the TOPS
FlashCard, call Sitka Technical Support at (415) 549-8737.
MORE INFORMATION
The following are the system requirements for the TOPS FlashCard:
- IBM-compatible computer
- MS-DOS version 2.00 or later
The TOPS FlashCard has six jumpers that can be used to change the board's
I/O address, IRQ line, and DMA channel. The following diagram shows the
relative position of the jumpers on the TOPS FlashCard (where X denotes the
default jumper position):
____________________________________
| |
| Ja1 |
| X H |
| : L |
| |
| Ja2 Ja3 Jint Jd2 Jd1 |
| X : : X : X X : X : |
| L H L H 3 2 1 3 1 3 |
|____________________________________|
Jumper Description Default
------------------ -------
Jint Interrupt 2
Jd1 DMA Acknowledge 1
Jd2 DMA Request 1
Ja1 I/O Address(398) High
Ja2 I/O Address Low
Ja3 I/O Address High
The AppleTalk driver used by the TOPS FlashCard to communicate with the
AppleTalk network depends on the version of TOPS/DOS software being used.
TOPS/DOS version 2.0 uses the ATALK.SYS driver, which must by installed
from the CONFIG.SYS file of the boot disk. TOPS/DOS versions 2.1 and 3.0
uses the ALAP.EXE driver, which can be installed from the AUTOEXEC.BAT file
of the boot disk or the DOS prompt. For more information on these drivers,
query on the following words in the Microsoft Knowledge Base:
TOPS and drivers and Mail
Both drivers can use the following switch settings for custom installations
that are different from the default settings of the FlashCard. If there are
no changes from the default jumper settings, no switches should be used.
The /FLASHTALK option allows two FlashCards to communicate at high speeds,
and is not required for running the Microsoft Mail MS-DOS client. The
following is a list of available options:
Option Default Other Possible Values
------------------------------------------------------------------
/BOARDINT=x 2 3
/DMA=x 1 3 (AT only), none
/ADDRESS=xxx 398 390,310
/INT=xx 5C Any unused interrupt (5C-6F)
/FLASHTALK=x Enabled(1) Disabled(0)
The default factory settings for the TOPS FlashCard for the PC use
interrupt 2, which conflicts with the hard disk controller of an IBM PC/AT
or compatible computer. When you run the Mail MS-DOS client with the TOPS
FlashCard, it is recommended that you set the board interrupt to 3 and the
software interrupt to 60. With these suggested settings, the command to
load the AppleTalk driver for the TOPS FlashCard should include the
/boardint=3 and /int=60 switches.
TOPS FlashCard for the PC is manufactured by Sun Microsystems, Inc., a
vendor independent of Microsoft; we make no warranty, implied or otherwise,
regarding this product's performance or reliability.
Modification Type: | Major | Last Reviewed: | 5/20/2003 |
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Keywords: | KB37924 |
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