Kontron VMOD-2D Manual do Utilizador descarregar pdf (Página 53)

VMOD-2/VMOD-2D

12/15/97

Configuration

Page 3 - 8Man. ID 03139, Rev. Index 0200

3.1.6Jumper B16 Selecting Address Block Width

Via the jumper B16, you are able to select if your VMOD-2 should occupy 256 Bytes of

address space, or when using certain enhanced piggybacks (which need/use additional

address decoding of A06...A11), in increased address steps of 8 KByte wide. The 256 byte

wide steps are numbered as AB (Address Blocks) from 01 to 32 in the table below.

Whenever the 8 KByte option is selected (i.e. jumper B16 is set) four consecutive AB#s are

occupied. These are also given to ensure that no address contention will occur when using

several VMOD-2's (and/or other boards) in your VMEbus system.

2b) Two piggybacks, both

unable to generate inter-

rupt vectors but can send

interrupt request are fitted

to the VMOD-2 and use

"Dum b" vecto rs (each with

different vector)

Use a diff erent

Jumper set

VMOD- 2 Vec-

tor for eac h

piggy back

B1 is to be

set to 1-2.

Jumpers

B4...B11 are

set for appro-

priate byte cod-

ing. B11 is set

to 1-3.

3) One "intelligent" and one

"Dum b" pigg ybac k are t o

be fitted to the VMOD-2

and the user wants the

intelligent p iggyback to

use i t's on-b oard "Int elli-

gent" vector generation in

combin ation with "Dumb"

jumper coding.

Use th e

"Dumb" pi ggy-

back in upper

location, and

fit t he "i ntel li -

gent" o ne in

lower loca tion.

B1 is to be

set to

bridge pins

1-3.

Jumpers

B4...B11 are

set for desired

vector code to

be assigned

when piggy-

back "A"

makes an IRQ.

Table 3-8: Interrupt Vector Configuration Examples

Configuration

Vector Modes

B1 Settings

B4...B11

Settings

1 2 ... 48 49 50 51 52 53 54 55 56 57 58 ... 81 82

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