Technique for creating extended bit timer on a time...

Details Technique for creating extended bit timer on a time... Technique for creating extended bit timer on a time...

2006-03-28

2006-03-28

Wambach, Margaret R. (Department: 2816)

Electrical pulse counters, pulse dividers, or shift registers: c

Applications

Measuring or testing

C700S306000, C702S057000, C702S079000, C702S176000, C702S177000, C702S178000

Reexamination Certificate

active

07020231

ABSTRACT:
A technique for implementing an extended bit timer with a time processing unit (TPU), without using the channel hardware of the TPU includes a number of steps. A timer of the TPU is periodically read to determine the value of the timer. A counter is incremented when rollover of the timer has occurred and a coherency flag is de-asserted after the timer transitions through a first count. The coherency flag is asserted after the value of the timer transitions through a third count and the value of the timer is combined with the value of the counter to provide a current count. When the coherency flag is asserted and the value of the timer is equal to or between the first and second counts, the current count is adjusted.

REFERENCES:
patent: 5634138 (1997-05-01), Ananthan et al.

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