Kontron VMOD-2D Manual do Utilizador descarregar pdf (Página 32)

VMOD-2/VMOD-2D

12/15/97

Functional Description

Page 2 - 6Man. ID 03139, Rev. Index 0200

Int Fixed = Vector is pre-fixed on-board the piggyback

Int Progr = programmable vector on piggyback

2.2.4Interrupt Vector Setting

As described before, the user can set his VMOD-2's Interrupt Vectors as appropriate to his

VMOD-2/Piggyback configurations needs. The selection of these vectors is subject to the

binary code of bits D0...D7 as derived by the setting of jumpers B11 to B4 respectively. B11 is

a three-pin type and can provide an identical or different vector for the two piggybacks. Three

examples are given below where jumper B1 must be set to 1-2 to use these vectors.

* = If jumper B11 is set for 1-3, D0 will return a "0" for piggyback "A" and a "1" for

piggyback "B".

When jumper B11 is set to 1-2 the vector of both piggyback locations "A" and "B"

will be the same (so D0 = 0).

When jumper B11 is open the vector of both piggyback locations "A" and "B" will

also be the same (but D0 = 1).

Table 2-4: Interrupt Vector Selection

Interrupt Vector Bit

D7 D6 D5 D4 D3 D2 D1 D0

Jumper Numbers

B04 B05 B06 B07 B08 B09 B10 B11

Example Setting # 1

Open Open Open Open S et Open Set 1-3*

Upper PBs Vector

Lower PBs Vector

Example Setting # 2

Open Open Open Open S et Open Set 1-2*

Upper PBs Vector

Lower PBs Vector

Example Setting # 3

Open Open Open Open Se t Open Set Open

Upper PBs Vector

Lower PBs Vector

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