Output controller with test unit

Details Output controller with test unit Output controller with test unit

2006-06-30

2009-06-16

Trimmings, John P (Department: 2117)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Skew detection correction

C714S005110, C714S707000, C714S718000, C714S721000, C714S731000, C714S744000, C714S745000, C714S814000, C365S194000, C365S189160

Reexamination Certificate

active

07549092

ABSTRACT:
There is provided an output controller with a test unit, which can test an appropriate delay amount according to an operating frequency under a real situation. The output controller includes an initial synchronizing unit for outputting a first output enable signal when a read CAS signal is activated; a plurality of synchronizing units connected in series to output an output signal of a previous stage as an output enable signal in synchronization with a corresponding driving clock, a first stage of the synchronizing units receiving the first output enable signal; and a test unit for adjusting a delay amount of an input clock according to a test signal and outputting the driving clock.

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