User Manual 2460 Series
Programming The 2461 Module 4-36
Racal Instruments
2003
Read Interrupt Line
This command is used to determine to which of the VME bus IRQ lines a slave's particular interrupt
generator is connected.
Command:
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
1
0
0
0
1
1
0
1
X
Int_ID
X:
Insignificant
Int_ID:
Unique identifier of the specific interrupt generator. For this module the
'Int_ID' field must contain the value '001'.
The VME bus' IRQ line number is placed in the Data Low Register.
Response:
Status:
This field indicates the status of command execution.
- F
16
:
The command has executed correctly.
- 7
16
:
Command default. The interrupt generator referenced in the Int_ID field
is unknown to the instrument.
Line:
The IRQ line number on the VME bus. A value of zero (0) indicates the
interrupt generator is disconnected.
Read Interrupts
This command is used to determine the number of a ‘slave’s’ interrupt generator.
Command:
CAFF
16
The number of the interrupt generator is placed in the Data Low Register.
Response:
FFF9
16
( an interrupt generator ).
1
1
1
1
1
1
1
1
1
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Status
Line
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