Clock supervision in digital systems

Details Clock supervision in digital systems Clock supervision in digital systems

G - Physics

06

F

354/231

G06F 11/00 (2006.01) G11C 29/00 (2006.01)

Patent

CA 1074020

lM 3836 Applicants: Telefonaktiebolaget L M Ericsson, S-126 25 STOCKHOLM Title: CLOCK SUPERVISION IN DIGITAL SYSTEMS Abstract of the disclosure: A method for supervision of clock signals in a digital data system in which data progressively is clocked by said clock signals through a number of registers. Supervisery flip flops are associated with each register and a clock supervision bit is progressively clocked through said flip flops forming together a supervision chain. The absence of one or more of said clock signals prevents said clock supervision bit from propogating to the end of said chain. By monitoring said clock supervision bit after propogation through said supervision chain it can be determined whether clock signals are supplied correctly to all registers.

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