Status/Id Register - National Instruments VXI-MXI User Manual

Register Descriptions

Status/ID Register

VXIbus Address:
Attributes:
15 14
S15 S14
7 6
S7 S6
This register contains the Status/ID value returned to the Interrupt Handler acknowledging an
interrupt request driven by one of the DIRQ bits in the Interrupt Control Register.
Bit Mnemonic
15-0r/w S[15-0]
VXI-MXI User Manual
Base Address + 2C (hex)
Read/Write
13 12
S13 S12
5 4
S5 S4
Description
Status/ID Value
This 16-bit value is the Status/ID data that is returned during a
VMEbus interrupt acknowledge cycle used to handle a VMEbus
interrupt request driven by one of the DIRQ bits in the Interrupt
Control Register. This register powers up to an indeterminate
value and is not cleared on either a hard or soft reset.
11 10
S11 S10
3 2
S3 S2
4-48 © National Instruments Corporation
Chapter 4
9 8
S9 S8
R/W
1
0
S1 S0
R/W