Invention Grant
- Patent Title: Fast cyclic decoder circuit for FIFO/LIFO data buffer
- Patent Title (中): 用于FIFO / LIFO数据缓冲器的快速循环解码器电路
-
Application No.: US12847473Application Date: 2010-07-30
-
Publication No.: US08238187B2Publication Date: 2012-08-07
- Inventor: Animesh Jain , Nagendra Chandrakar , Sonia Ghosh
- Applicant: Animesh Jain , Nagendra Chandrakar , Sonia Ghosh
- Applicant Address: US CA Sunnyvale
- Assignee: Advanced Micro Devices, Inc.
- Current Assignee: Advanced Micro Devices, Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Hamilton & Terrile, LLP
- Agent Gary W. Hamilton
- Main IPC: G11C7/00
- IPC: G11C7/00

Abstract:
Embodiments of systems and methods for improved first-in-first-out (FIFO), last-in-last out (LIFO) and full-cycle decoders are described herein. In the various embodiments of the system, a clock generator is operable to generate a clock signal having an active phase and an inactive phase. A set of monotonic flip-flops are operable to capture a set of incoming data addresses during the active cycle of the clock and to generate therefrom data corresponding to single bits in the addresses that have changed compared to the data addresses received by the set of monotonic flip-flops during an immediately preceding data capture cycle. A set of static flip-flops are operable to capture a set of incoming data addresses during the inactive phase of the clock cycle and to generate set output data therefrom. A decoder operable to process the set output data from the set of static flip-flops and to generate a set of old wordlines corresponding to a set of data addresses in the immediately preceding data capture cycle. Combinational is logic operable to receive the set of single changed bits and the set of old wordlines and to generate therefrom a set of new wordlines. Methods are also described herein for using the aforementioned system.
Public/Granted literature
- US20120026819A1 Fast Cyclic Decoder Circuit for FIFO/LIFO Data Buffer Public/Granted day:2012-02-02
Information query