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

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

Base + 0616

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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