{"id":{"repo_id":"cape-town","oai_identifier":"oai:open.uct.ac.za:11427/27514"},"canonical_url":"https://search.dev.ndltd.org/etd/cape-town/oai:open.uct.ac.za:11427/27514","repository":{"repo_id":"cape-town","name":"University of Cape Town","base_url":"https://open.uct.ac.za/oai/request"},"display":{"title":"Development and implementation of hardware and software for a minicomputer based programmable interval timer for use in point process analysis of neuronal action potentials","abstract":"A precision programmable interval timer (PIT) for use in point process analysis of the neutronal action potentials derived from multiple extracellular electrode arrays is described. The PIT is based on a commercially available LSI package, INS8253 and is interfaced to a Data General (DG) microNova 16-bit microcomputer via a DG General Purpose Interface (GPI) board. The programmable clock periods range from 1 μsec to 10 msec in decade multiples, offering a total timing duration of 65 msec to 650 sec. The PIT operates in two Modes : 1. Count-down timer 2. Elapsed time timer (Event resettable timer) Clock-overrun and data lost flags are provided. Testing and applications software have also been developed.","abstract_html":"A precision programmable interval timer (PIT) for use in point process analysis of the neutronal action potentials derived from multiple extracellular electrode arrays is described. The PIT is based on a commercially available LSI package, INS8253 and is interfaced to a Data General (DG) microNova 16-bit microcomputer via a DG General Purpose Interface (GPI) board. The programmable clock periods range from 1 μsec to 10 msec in decade multiples, offering a total timing duration of 65 msec to 650 sec. The PIT operates in two Modes : 1. Count-down timer 2. Elapsed time timer (Event resettable timer) Clock-overrun and data lost flags are provided. Testing and applications software have also been developed.","abstract_has_math":false,"creators":["Willenberg, Keith David"],"institution":"Division of Biomedical Engineering","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Douglas, Rodney J"],"committee_chairs":[],"committee_members":[],"year":1980,"date_issued":"1980","date_published":"1980","updated_at":"2026-07-22T22:23:38Z","subjects":[],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/11427/27514","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Douglas, Rodney J"]},{"key":"dc:creator","label":"Author","values":["Willenberg, Keith David"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2018-02-12T08:45:44Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2018-02-12T08:45:44Z"]},{"key":"dc:date.issued","label":"Date","values":["1980"]},{"key":"dc:publisher.department","label":"Dc Publisher Department","values":["Division of Biomedical Engineering"]},{"key":"dc:publisher.institution","label":"Dc Publisher Institution","values":["University of Cape Town"]},{"key":"dc:type","label":"Dc Type","values":["Master Thesis"]},{"key":"dc:type.qualificationlevel","label":"Dc Type Qualificationlevel","values":["Masters"]},{"key":"dc:type.qualificationname","label":"Dc Type Qualificationname","values":["MSc (Med)"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["eng"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/11427/27514"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["A precision programmable interval timer (PIT) for use in point process analysis of the neutronal action potentials derived from multiple extracellular electrode arrays is described. The PIT is based on a commercially available LSI package, INS8253 and is interfaced to a Data General (DG) microNova 16-bit microcomputer via a DG General Purpose Interface (GPI) board. The programmable clock periods range from 1 μsec to 10 msec in decade multiples, offering a total timing duration of 65 msec to 650 sec. The PIT operates in two Modes : 1. Count-down timer 2. Elapsed time timer (Event resettable timer) Clock-overrun and data lost flags are provided. Testing and applications software have also been developed."]},{"key":"dc:title","label":"Title","values":["Development and implementation of hardware and software for a minicomputer based programmable interval timer for use in point process analysis of neuronal action potentials"]}]}],"canonical_facts":{"dc:contributor.advisor":["Douglas, Rodney J"],"dc:creator":["Willenberg, Keith David"],"dc:date.accessioned":["2018-02-12T08:45:44Z"],"dc:date.available":["2018-02-12T08:45:44Z"],"dc:date.issued":["1980"],"dc:description.abstract":["A precision programmable interval timer (PIT) for use in point process analysis of the neutronal action potentials derived from multiple extracellular electrode arrays is described. The PIT is based on a commercially available LSI package, INS8253 and is interfaced to a Data General (DG) microNova 16-bit microcomputer via a DG General Purpose Interface (GPI) board. The programmable clock periods range from 1 μsec to 10 msec in decade multiples, offering a total timing duration of 65 msec to 650 sec. The PIT operates in two Modes : 1. Count-down timer 2. Elapsed time timer (Event resettable timer) Clock-overrun and data lost flags are provided. Testing and applications software have also been developed."],"dc:identifier.uri":["http://hdl.handle.net/11427/27514"],"dc:language.iso":["eng"],"dc:publisher.department":["Division of Biomedical Engineering"],"dc:publisher.institution":["University of Cape Town"],"dc:title":["Development and implementation of hardware and software for a minicomputer based programmable interval timer for use in point process analysis of neuronal action potentials"],"dc:type":["Master Thesis"],"dc:type.qualificationlevel":["Masters"],"dc:type.qualificationname":["MSc (Med)"]},"updated_at":"2026-07-22T22:23:38Z"}