Semiconductor Data Output Circuit Burst Collision Prevention
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Solution Overview
Problem
Semiconductor devices face challenges in efficiently managing burst operations to prevent data collisions and ensure reliable data output, particularly in high-speed operations where internal data prioritization and timing are critical.
Innovation Solution
The semiconductor device incorporates a read control circuit and data output circuit that generate strobe signals and output control signals based on burst information, allowing for internal data latching and transfer at specific logic level transitions, enabling priority setting and collision prevention through latch and flip-flop operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If burst operations are performed at high speed, then productivity is improved, but data collisions occur and reliability deteriorates
Solution Approach 1:
The patent applies preliminary action by setting output priorities for internal data before burst operations commence. The read control circuit pre-configures the data output circuit with priority levels for different internal data sources based on burst information, ensuring that data collision prevention mechanisms are in place before high-speed operations begin. This allows the system to maintain reliability while achieving high productivity during burst operations.
2Productivity
If multiple internal data are output simultaneously, then productivity is improved, but data collisions increase and reliability worsens
Solution Approach 1:
The patent segments the data output process by dividing internal data into different priority levels and time slots. The data output circuit is configured to output internal data sequentially according to their assigned priorities rather than simultaneously, using the read control circuit to manage the segmentation. This allows multiple data items to be output efficiently while preventing collisions through structured prioritization.
Solution Approach 2:
The patent changes the timing parameter of data output by using different output timing signals for internal data with different priorities. The read control circuit generates specific output control signals that adjust the output timing of each internal data source, transforming the simultaneous output problem into a controlled sequential output process while maintaining high throughput.
3Ease of operation
If data output timing is simplified, then ease of operation is improved, but control precision over internal data prioritization deteriorates
Solution Approach 1:
The patent applies self-service by enabling the read control circuit to automatically generate appropriate output control signals based on burst information and internal data priorities. The system self-manages the complex timing coordination without requiring external intervention, maintaining ease of operation while achieving precise control of data output timing through internal automated decision-making.
Data Source
AI summary
A semiconductor device includes a read control circuit configured to generate first and second output control signals including pulses which are selectively generated, from first and second strobe signals depending on burst information; and a data output circuit configured to latch first internal data depending on the pulse of the first output control signal, transfer second internal data at a time when the second output control signal level-transitions, and generate output data from the latched first internal data and the transferred second internal data.