Vxi offset register – HP E1418A User Manual
Page 129
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Passed: A one (1) in this field indicates the module has finished a reset or
has completed module initialization. A zero (0) in this field indicates the
module is executing a reset or has failed module initialization.
WRITE
A24 EN: Writing a one (1) to this field enables access to the A24 address
space via A24 addressing. Writing a zero (0) to this field disables access to
the A24 address space.
SYSINH: Writing a one (1) to this field disables the module from driving
the VXIbus SYSFAIL* line. Writing a zero (0) enables the module to drive
SYSFAIL*.
RESET: Writing a one (1) and then a zero (0) to this field performs a
module reset. Writing a one (1) to this field forces the module into the reset
state. The module is held in the reset state until a zero (0) is written to this
field.
VXI Offset Register
The VXI Offset Register is a VXIbus required register. The offset register
defines the base address of the module’s A24 address space.
Address
Base + 06
16
Bit
15
14
13
12
11
10
09
08
07
06
05
04
03
02
01
00
READ
A24 Offset
0
0
0
0
0
0
0
0
0
0
WRITE
A24 Offset
0
0
0
0
0
0
0
0
0
0
A24 Offset: This field is the six most significant bits of the module’s A24
base address.
Bits 0 through 9 are always zero (0).
128 HP E1418A Register-Based Programming
Appendix B
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