Pipe Latch Circuit Input Timing Adjustment for Data Overwrite Prevention
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Solution Overview
Problem
Semiconductor devices with pipe latch circuits face challenges in preventing data overwrite and reducing output loading as clock frequency increases, especially with an increasing number of latch circuits.
Innovation Solution
The semiconductor device adjusts the input timing of data to the pipe latch circuit based on whether the clock frequency corresponds to a preset frequency range, using control signals to manage latency and prevent overwrite, thereby reducing output loading without increasing the number of latch circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the number of latch circuits in the pipe latch circuit is increased to process signals more efficiently, then the signal processing capability is improved, but the output loading increases and data overwrite risk increases
Solution Approach 1:
The patent applies dynamics by making the input timing adjustment variable based on clock frequency. The input control signal generation circuit dynamically adjusts the timing of input control signals according to whether the clock frequency is within a preset range, allowing the system to adapt its behavior rather than using a fixed configuration. This resolves the contradiction by enabling efficient signal processing through multiple latch circuits while managing output loading through frequency-aware timing adjustments.
2Productivity
If the number of latch circuits in the pipe latch circuit is increased to process signals more efficiently, then the signal processing capability is improved, but the risk of data overwrite increases
Solution Approach 1:
The system dynamically adjusts input timing based on clock frequency conditions. When the clock frequency is within the preset range, the input control signal is generated at a specific timing that prevents data overwrite. This dynamic adaptation allows multiple latch circuits to operate efficiently while maintaining data integrity through frequency-dependent timing control.
Solution Approach 2:
The input control signal generation circuit monitors the clock frequency and uses this feedback to determine when to generate input control signals. This feedback mechanism ensures that the timing adjustment is based on actual system conditions, preventing data overwrite while maintaining efficient signal processing capability.
3Reliability
If the input timing is adjusted based on clock frequency to prevent data overwrite, then data integrity is improved, but the device complexity increases
Solution Approach 1:
The patent changes the timing parameter of input control signals based on clock frequency. The input control signal generation circuit adjusts the timing parameter dynamically, which is a parameter change approach. This resolves the contradiction by maintaining data integrity through timing adjustments while keeping the control circuit relatively simple, as it only needs to monitor clock frequency and adjust timing accordingly rather than implementing complex control logic.
Data Source
AI summary
A semiconductor device includes an input control signal generation circuit configured to generate an input control signal when performing an internal operation and configured to adjust a time point at which the input control signal is generated, based on whether a frequency of a clock corresponds to a preset frequency range. The semiconductor device includes an output control signal generation circuit configured to generate an output control signal after a latency elapses when performing the internal operation. The semiconductor device includes a pipe latch circuit configured to latch input data based on the input control signal and configured to output the latched input data as output data based on the output control signal.