SIS Documentation
SIS3800
Scaler/Counter
Page 10 of 39
desired firmware via the firmware selection jumper array J500 . You have to make sure, that
the input/output configuration and FIFO configuration of your board are in compliance with
the requirements of the selected firmware design (a base board without FIFO can not be
operated as multi channel scaler e.g.). A total of 8 boot files from the FLASHPROM can be
selected via the three bits of the jumper array. The array is located towards the rear of the card
between the VME P1 and P2 connectors. The lowest bit sits towards the bottom of the card, a
closed jumper represents a zero, an open jumper a one.
5.1 Examples
The figures below show jumper array 500 with the soldering side of the board facing the user
and the VME connectors pointing to the right hand side.
Bootfile 0 selected
With all jumpers closed boot file 0 is selected
Bootfile 3 selected
With the lowest two jumpers open bit 0 and bit 1 are set to 1 and hence boot file 3 is selected
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