Kontron VMOD-2D - Manual (Page 49)

VMOD-2/VMOD-2D
12/15/97
Configuration
Page 3 - 12 Man. ID 03139, Rev. Index 0200
3.1.7 Jumpers B17...B19 Setting Interrupt Level
The VMOD-2 user can set the three jumpers B17, B18 and B19 to use any IRQ level from 1 to
7 as appropriate to his VMEbus systems application. When all three jumpers are set the IRQ
from the VMOD-2 is disabled.I
3.1.8 Jumper B20 Enable/Disable "Local" Reset Input
The VMOD-2 user can take advantage of an external signal which when utilized will allow the
two piggybacks to be "reset" whenever certain external conditions occur. The external two-
wire signal is input onto pins 25 and 26 of the 50-way external interface, where the wiring and
use of these two lines are as described in section 2.3.
Note.
Jumper B20 must be set to either 1-2 or 1-3. B20 left open is not allowed.
If this jumper is left totally open (neither pin connected to pin 1) the logic
is floating and may cause spurious resets or other unpredictable prob-
lems.
Table 3-10: IRQ Level selection
RQ Level
Wanted
B17 B18 B19
None Set Set Set
IRQ1* Set Set Open (Default)
IRQ2* Set Open Set
IRQ3* Set Open Open
IRQ4* Open Set Set
IRQ5* Open Set Open
IRQ6* Open Open Set
IRQ7* Open Open Open
Table 3-11: Local Reset Enable/Disable
Local Reset Enabled Disabled
see note
below
Jumper B20 1-3 1-2 Open