Racal Instruments 1260 VXI, User Manual

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1260-145 User Manual
Module Operation 3-2 Racal Instruments

2003
from 7 through 12, in the following pattern:
Front View – Module Addresses for 7 through 12
When setting module addresses for Adapt-a-Switch Carriers and
conventional 1260-Series modules, be sure that no address is
used by more than one plug-in or 1260-Series module.
For instructions on setting module addresses for a conventional
1260-Series module, see the label on the side panel of the
module.
Operating Modes
The 1260-145 may be operated either in message-based mode or
in register-based mode.
In the message-based mode, the 1260-01T switch controller
interprets commands sent by the slot 0 controller, and determines
the appropriate data to send to the control registers of the 1260-
145 module.
If the A24 VXI base address for the 1260-100 Adapt-A-Switch
carrier is assumed to be at 0x804000A for example purposes and
the 1260-145 occupies the module 0 slot,
Figure 3-1 below
provides a conceptual view of the message-based mode of
operation for a read operation on port 1.
7
8
9
10
11
12