HP E1418A, User Manual

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memory cannot be accessed via A24 addressing (is inactive). This bit
reflects the state of the write register A24 EN bit.
MODID*: A one (1) in this field indicates the module is not selected via
the P2 MODID line. A zero (0) in this field indicates the module is selected
by a high state on the P2 MODID line.
Ready: A one (1) in this field, together with a one (1) in the Passed bit,
indicates the module is ready for operation. A zero (0) in this field, together
with a 0 in the Passed bit, indicates the module failed initialization.
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).
Appendix B HP E1418A Register-Based Programming 130