Manual 07504513
Model 4513
Page 12
O
peration Manual
Chapter 6
Register Map
6.1
Introduction
The Introduction is a VXI register based card assembly designed to be installed within the ASCOR Series
4000 Multi-Slot VXI Module. The Relay Registers on this card assembly are controlled by a high-speed
VXIMAX™ 16/32 VXIbus interface. Because of VXIMAX™, you can program Relay Registers as 16-bit or
32-bit words (in D16 or D32 mode) as desired, with no special configuration or upgrade procedures
required. As described in Section 3 of the
Guide
, write to registers through your VXI controller.
When a Relay Register data bit is on (true), the corresponding relay is closed. The state of the relays in a
register can be determined by reading the Relay Register. The data readback represents the state of the
relay coil (according to the default state of the Relay Control Register). This allows you to verify that the
physical data register has correctly controlled the relay coil.
The Relay Registers start at an offset of 8000h from the multi-slot module A24/A32 Slot Base Address.
The A24/A32 Slot Base Address is equal to the multi-slot module A24/A32 Base Address plus the slot
number where the card assembly resides in the multi-slot module times 10000h. For example, if the
Introduction card assembly is installed in slot 3, and the multi-slot module A24 Base Address is 200000,
then the address of the first Relay Register is 238000h.
For more information on registers including addressing, VXI Device Registers, and programming
instructions.
Note:
The Introduction does not initiate interrupt requests.
You can access Relay Registers as either 16-bit or 32-bit words. Under 16-bit (D16) mode, address
offsets increment by 2h. Under 32-bit (D32) mode, address offsets increment by 4h. The
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shows offsets and bit numbers for both methods, and the relays controlled
by each register bit.
