Programmable Shift Register Load Mapping for Low-Latency Data Access
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Solution Overview
Problem
Conventional shift registers require multiple clock cycles to retrieve data, leading to high latency and inefficiency in data storage and transfer, and they often struggle to accommodate all combinations of bits without leftovers.
Innovation Solution
A programmable shift register with a programmable load location (pSRL) that uses a bit-remapper function and multiplexers to efficiently load and shift data based on control signals and a programmable shift value, allowing for flexible data storage and reduced latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If conventional shift register is used for data storage and transfer, then data can be stored and shifted, but it requires multiple clock cycles to retrieve data resulting in high latency
Solution Approach 1:
The patent implements a programmable shift register where the load location is dynamically configurable through control signals. The ability to programmatically set the load location allows the system to adaptively optimize data retrieval paths, reducing the number of clock cycles needed to access specific data elements. This dynamic reconfiguration capability directly addresses the latency issue by enabling flexible data access patterns rather than fixed sequential retrieval.
2Adaptability or versatility
If conventional shift register is used, then data storage is possible, but it struggles to accommodate all combinations of bits without leftovers
Solution Approach 1:
The patent employs programmable parameters including load location and shift amount that can be dynamically adjusted to accommodate different bit combination requirements. By changing these parameters, the shift register can efficiently handle various data widths and bit patterns without leaving unused storage elements, thereby improving both adaptability and storage efficiency.
3Loss of time
If programmable shift register with programmable load location is implemented, then latency is reduced and storage efficiency is improved, but device complexity increases
Solution Approach 1:
The patent achieves multiple functions within a unified programmable shift register structure. The same hardware infrastructure supports both data shifting and programmable loading operations, with control signals determining the operational mode. This multi-functionality reduces the need for separate dedicated circuits for different operations, thereby limiting the increase in overall device complexity while still achieving reduced latency and improved efficiency.
Data Source
AI summary
Programmable shift register with programmable load location (pSRL) for data storage and method thereof is disclosed. A loadable programmable Shift Register (pSR) according to present disclosure receives a programmable input LL that defines where data D is to be loaded from the Load Register when L (Load Control Signal)=1. The loadable Shift Register with programmable load location (pSRL) is configured to obtain L (Load Control Signal), S (Shift Control Signal), LL (Load Location Control Signal), and p (programmable shift value), and wherein the pSRL is adapted to perform loading and shifting of data D based at least on the L, S, LL, and p values.