Clock Signal Transmission Circuit With Variable Stabilization Wait Time
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Solution Overview
Problem
Existing clock signal transmission circuits in semiconductor integrated circuits have a fixed initial wait time for clock signal stabilization, which may be unnecessarily long and inflexible, even when the characteristics of the clock signal generation circuit allow for reduction.
Innovation Solution
A clock signal transmission circuit with a variable initial wait time setting mechanism, incorporating an initial value setting circuit that allows selection of different wait times based on the characteristics of the clock signal generation circuit, enabling dynamic adjustment of the stabilization time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed initial wait time is used for clock signal stabilization, then the clock signal transmission circuit ensures stable operation, but the wait time may be unnecessarily long and inflexible
Solution Approach 1:
The patent applies the dynamics principle by making the initial wait time variable rather than fixed. The wait time determination unit dynamically selects from multiple predetermined wait time values based on the characteristics of the clock signal generation circuit, allowing the system to adapt the stabilization time to actual conditions rather than using a conservative fixed value.
Solution Approach 2:
The patent implements parameter changes by varying the initial wait time parameter according to the clock signal generation circuit's characteristics. The system changes the wait time parameter from a fixed value to a selectable range of values, optimizing the balance between reliability and time efficiency.
2Adaptability or versatility
If a fixed initial wait time is used for clock signal stabilization, then the circuit design is simple, but the adaptability to different clock signal generation circuit characteristics is reduced
Solution Approach 1:
The patent makes the wait time parameter dynamic and adjustable based on clock signal generation circuit characteristics. The wait time determination unit adapts the initial wait time to match different circuit conditions, improving versatility without requiring complete redesign for each scenario.
Solution Approach 2:
The patent creates a universal solution that can handle multiple clock signal generation circuit characteristics through a single adaptable mechanism. The wait time determination unit serves multiple functions by selecting appropriate wait times for different circuit types, reducing the need for multiple specialized circuits.
Data Source
AI summary
A clock signal transmission circuit having a variable initial value for a wait time that is required until a clock signal stabilizes. The clock signal is generated from an original clock signal. The wait time setting unit generates a plurality of wait time signals to wait until the original clock signal stabilizes before providing the clock signal to the internal circuit. A wait time determination unit selects one of the wait time signals and provides the selected wait time signal to a clock control unit. The wait time determination unit includes a data holding circuit which generates a selection signal in accordance with the initial value, a selection circuit which selects one of the wait time signals based on the selection circuit, and an initial value setting circuit enabling the initial value to be varied.