Dynamic Command Data Rate Ratio Control IC
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Solution Overview
Problem
Current memory systems face challenges in efficiently managing the ratio change between command signal and data signal transmission rates, leading to increased power consumption and complex timing requirements for command processing circuits.
Innovation Solution
An integrated circuit (IC) chip with interface circuits and a control circuit that adjusts the transmission rates by informing the memory chip of the ratio change, allowing for smooth transitions in data bandwidth and power modes by modifying the clock signal frequency and configuration, thereby reducing the command processing circuit's power consumption and simplifying its design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the transmission rate ratio between command signals and data signals is adjusted dynamically, then power consumption and circuit complexity are reduced, but timing coordination and signal synchronization become more challenging
Solution Approach 1:
The patent implements dynamic adjustment of the transmission rate ratio between command signals and data signals. The control circuit changes the command signal transmission rate relative to the data signal transmission rate based on operational requirements, transitioning from a fixed ratio to a dynamically adjustable ratio. This allows the system to optimize power consumption by reducing command signal frequency during operations where fewer commands are needed, while maintaining high data transmission rates.
Solution Approach 2:
The patent changes the transmission rate parameter of command signals dynamically. By adjusting the frequency and timing parameters of command signals independently from data signals, the system can reduce power consumption during low-activity periods while maintaining high performance during data-intensive operations. The control circuit modifies these parameters based on the operational state and requirements.
2Use of energy by moving object
If the command signal transmission rate is reduced independently from data signal rate, then power consumption decreases, but signal synchronization and timing alignment become more difficult
Solution Approach 1:
The patent incorporates feedback mechanisms where the control circuit monitors the operational state and adjusts the command signal transmission rate accordingly. The system receives feedback about data transmission requirements and command processing needs, then dynamically adjusts the command signal frequency to optimize power consumption while maintaining synchronization. This closed-loop control ensures that timing relationships are maintained even when transmission rates change.
Solution Approach 2:
The control circuit acts as an intermediary between the data transmission system and command processing system. It coordinates the timing and synchronization between commands and data by inserting appropriate delays, adjusting phase relationships, and ensuring that command signals are properly aligned with data signals even when their transmission rates differ. This intermediary function maintains synchronization reliability while enabling independent rate adjustment.
Data Source
AI summary
Aspects of the disclosure provide an integrated circuit (IC) chip that includes interface circuits and a control circuit. The interface circuits is configured to interface the IC chip to buses that couple the IC chip with a memory chip, to drive signals onto the buses for transmission to the memory chip and to receive signals that are transmitted on the buses from the memory chip. The control circuit is configured to receive a ratio change of transmission rates for command signals and data signals, control the interface circuits to transmit information signals to the memory chip to inform the ratio change, configure the interface circuits according to the ratio change, and allow the interface circuits to start transmit/receive signals according to the ratio change at a time.