VXi 320222-01 User Manual

Page of 209
Register Descriptions
Chapter 4
VXI-MXI User Manual
4-28
© National Instruments Corporation
INTX Utility Configuration Register (on VXI-MXIs with INTX only)
VXIbus Address:
Base Address + 18 (hex)
Attributes:
Read/Write
R
15
14
13
12
11
10
9
0
1
1
0
1
1
1
1
8
R/W
7
6
5
4
3
2
1
1
1
ACFAILIN ACFAILOUT SYSFAILIN
SYSFAILOUT SYSRSTIN SYSRSTOUT
0
0
0
0
0
0
0
0
0
W
This register on the INTX daughter card is used to configure the mapping of the three VMEbus
reset signals to and from the three corresponding INTX reset signals.
Bit
Mnemonic
Description
15-12w,
1 Reserved 
Bits
11-6r/w
These bits are reserved and read back as ones.  Write zeros to these
bits when writing to this register.
15r 
Extended TTL Trigger Line Support
This bit is set in hardware to zero to indicate that the INTX
daughter card supports the Trigger Configuration register.
14r 
Extended P3 ECL Trigger Line Support
This bit is set in hardware to one to indicate that the INTX
daughter card does not support external routing of the VXIbus P3
ECL trigger lines.
13r 
Extended P2 ECL Trigger Line Support
This bit is set in hardware to one to indicate that the INTX
daughter card does not support external routing of the VXIbus P2
ECL trigger lines.
12r 
Extended Utility Line Support
This bit is set in hardware to zero to indicate that the INTX
daughter card supports this Utility Configuration register.