Cycle control circuits
AssigneeSK hynix Inc.
InventorChang Hyun KIM
Life of this patent
Estimating the term…
Abstract
A cycle control circuit may include a judgement pulse generation circuit, a detection signal generation circuit or a flag generation circuit. The judgement pulse generation circuit may be configured to set a predetermined value based on an initialization signal and a period signal, and to generate a judgment pulse. The detection signal generation circuit may be configured to generate a detection signal from a reference flag. The flag generation circuit may be configured to generate a reference flag based on a reference signal. A cycle of the reference signal may be maintained or adjusted based on the reference flag.
Claims29
A cycle control circuit comprising:
- a judgement pulse generation circuit configured to set a predetermined value in response to an initialization signal and configured to generate a judgement pulse in synchronization with a point of time that a time period corresponding to the predetermined value in units of a cycle of a clock signal elapses;
- a detection signal generation circuit configured to generate a detection signal from a reference flag in response to the judgement pulse;
- and
- a code generation circuit configured to generate a calibration code for controlling a cycle of a reference signal in response to the detection signal and the judgement pulse.
A cycle control circuit comprising:
- a judgement pulse generation circuit configured to set a predetermined value in response to an initialization signal and configured to generate a judgement pulse in synchronization with a point of time that a time period corresponding to the predetermined value in units of a cycle of a clock signal elapses;
- a flag generation circuit configured to generate a reference flag in response to a period signal and a reference signal, the reference signal having a cycle that is controlled by a calibration code;
- and
- a code generation circuit configured to generate the calibration code and a sense code in response to the judgement pulse and a detection signal generated from the reference flag.
A cycle control circuit comprising:
- a judgement pulse generation circuit configured to set a predetermined value based on an initialization signal and a period signal, and configured to generate a judgement pulse in synchronization with a point of time that a time period corresponding to the predetermined value in units of a cycle of a clock signal elapses;
- and
- a flag generation circuit configured to generate a reference flag based on the period signal and a reference signal,
- wherein a cycle of the reference signal is maintained at a constant value after an operation for adjusting the cycle of the reference signal terminates based on the reference flag.
A cycle control circuit comprising:
- a judgement pulse generation circuit configured to set a predetermined value based on an initialization signal and a period signal, and configured to generate a judgement pulse in synchronization with a point of time that a time period corresponding to the predetermined value in units of a cycle of a clock signal elapses;
- and
- a detection signal generation circuit configured to generate a detection signal from a reference flag in response to the judgement pulse, the reference flag generated based on a reference signal and the period signal,
- wherein a cycle of the reference signal is maintained at a constant value after an operation for adjusting the cycle of the reference signal terminates based on the reference flag.
Dependencies are inferred from the claim text.