protocol-level timer

protocol-level timer

[′prōd·ə‚kȯl ¦lev·əl ′tīm·ər]
(communications)
A time-measuring unit within a communicating device that issues high-priority interrupts which synchronize and set deadlines for protocol-related activities.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.