2606B System SourceMeter® Instrument Reference Manual
Appendix E: Status model
2606B-901-01 Rev. B / May 2018
E-23
The System Summary Registers are shared by all nodes in the TSP-Link system. When a bit in a
system register of node 15 sets, the same bit in the master node system register also sets.
•
System Summary Registers: Bit B0 (Extension) of the System Summary Register sets.
•
Master Node: Bit B0 (MSB) of the Status Byte sets.
•
Master Node: With service request enabled, bit B6 (RQS) of the Status Byte sets. When your
program performs the next serial poll of the master node, it will detect the current limit event and
can branch to a routine to service the request.
The figure in
Status configuration (enable) commands
(on page E-23) demonstrates the flow of
information through the status model of node 15 and the master node.
Status configuration (enable) commands
The following commands (sent from the master node) enable the appropriate register bits for the
above example:
Node 15 status registers: The following commands enable the current limit events for SMU A and B of
node 15:
node[15].status.measurement.current_limit.enable = 6
node[15].status.measurement.enable = 2
node[15].status.node_enable = 1
The affected status registers for the above commands are indicated by labels A, B and C (see
following figure).
Master node system summary registers: The following commands enable the required system
summary bits for node 15:
status.system2.enable = 2
status.system.enable = 1
The affected system summary registers for the above commands are indicated by labels D and E
(see following figure).
Master node service request: The following command enables the service request for the
measurement event:
status.request_enable = 1