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4.04 SUPERVISOR UTILITIES
The VIPer series incorporates features that are usually not found on commercial PCs.
TEKNOR computers utilize address space 190H, 290H or 390H to enable these special
features. The I/O address is jumper selectable (W21 jumper - Section 3).
TABLE 4-3: Register 190H, 290H or 390H
Bit #
Bit Value
Function:
(Default)
WRITE
0
0
Enable Watchdog
1=enable, R/W bit
1
1
Watchdog activate
1-0-1 to toggle, R/W bit
2
0
Flash VPP enable
RS-485 direction control.
3
0
Refer to Section 5.02 about
RS-485 Serial Port.
4
0
Reserved
5
0
Reserved
6
1
Reserved
7
0
Reserved
F Not all bits are R/W. Therefore, be certain to keep a mirror image of the register
when programming it.
F All bits are 0 after a hardware RESET or power up condition.
F Write the values shown in the "Bit Value (Default)" column if you are unsure.
Installing & Working With System Components
READ
Same
Same
Same
Power Detection Output or
Battery Low output
W22 (7-8) Status
W22 (5-6) Status
W22 (3-4) Status
W22 (1-2) Status
4-6
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