Manual 07504506
Model 4506
Page 12
O
peration Manual
Chapter 7
Register Map
The Model 4506 is a VXI register based card assembly design to be used with the ASCOR Series 4000
host VXI module. The switch paths are controlled by a high speed interface called
VXImax™
is a 16/32
bit data controller. The Model 4506 can be programmed in 16 bit or 32 bit wide data format. Through
your VXI controller, write the data to the appropriate register as shown on the register map for the relay
or relays in the register that is being closed. When the data bit is true, the relay chosen will be closed.
The state of the relays in a register can be determined by reading the desired register. The data read
back represents the value at the coil of the relay. This allows verification that the program register has
correctly controlled the relay coil.
The following register maps are shown in two configurations: 16 bit mode and 32 bit mode. In each
section, 16 bit and 32 bit, the register map is organized to show the relay designation in each register. It
is followed by the register’s functionality and the path connections to the front panel.
A16 Register
Offset
Value
00h
7Fb5h
7= Register Based, A16/A24 Module
FB5=VXI Manufacturer ID, ASCOR
02h
7D21h
7=A24 space requirement
xxxx= Model Number for this module
04h
FFFCh
06h
(assigned by Resource Manager)
Control
Bit
3Eh
0
Low true output to enable coil driver IC’s
1
When low enables readback of coil state
2
High true EEPROM write enable (factory only)
3-15
Don’t care
