Appendix C: Status model
Models 707B and 708B Switching Matrix Reference Manual
C-4
707B-901-01 Rev. A / August 2010
Status Byte register overview
Status Byte register overview
Figure 98: Status Byte register
Queue not empty {
Queue not empty {
Service
Request
enable
Status
Byte
condition
status.condition
status.request_enable
Error or
Event queue
•
•
•
Output queue
•
•
•
0
6
5
3
4
2
1
7
0
5
3
4
2
1
7
&
&
&
&
&
&
&
+
*
*
*
*
*
Legend
*
Summary bit from the applicable register.
Summary Message Bit: A single bit indicating one or more enabled
events
occured.
Performs a logical AND of input bits, with the result feeding the
Summary Message Bit.
Bit not used (returns a value of 0 when read).
+
&
System
Node
enable
status.node_enable
0
6
5
3
4
2
1
7
&
&
&
&
&
&
&
+
To node
X
in a system summary
register (system through system 5).
The
X
refers to the user-assigned
TSP-link node number.
Expanded system (TSP-link)
This register is
available on all
TSP-Link nodes.
Measurement Summary Bit (MSB)
System Summary Bit (SSB)
Error Available Bit (EAV)
Message Available Bit (MAV)
Event Summary Bit (ESB)
Operation Summary Bit (OSB)
Master Summary Status Bit (MSS)
Questionable Summary Bit (QSB)