Register Descriptions
Chapter 4
VXI-MXI User Manual
4-48
© National Instruments Corporation
Status/ID Register
VXIbus Address:
Base A 2C (hex)
Attributes:
Read/Write
R/W
15
14
13
12
11
10
9
S15
S14
S13
S12
S11
S10
S9
S8
8
R/W
7
6
5
4
3
2
1
S7
S6
S5
S4
S3
S2
S1
S0
0
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
Description
15-0r/w
S[15-0]
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.