公开(公告)号：DE602005015336D1

公开(公告)日：2009-08-20

申请号：DE602005015336

申请日：2005-08-19

Applicant: IBM

Inventor： CHU SAM GAT-SHANG ,  KLIM PETER JUERGEN ,  LEE MICHAEL JU HYEOK ,  PAREDES JOSE ANGEL

IPC: G11C7/22

Abstract: A register file method incorporating read-after-write blocking using detection cells provides improved read access times in high performance register files. One or more detection cells identical to the register file cells and located in the register file array are used to control the read operation in the register file by configuring the detection cells to either alternate value at each write or change to a particular value after a write and then detecting when the write has completed by detecting the state change of an active detection cell. The state change detection can be used to delay the leading edge of a read strobe or may be used in the access control logic to delay generation of a next read strobe. The register file thus provides a scalable design that does not have to be tuned for each application and that tracks over voltage and clock skew variation.

公开(公告)号：AT436073T

公开(公告)日：2009-07-15

申请号：AT05779156

申请日：2005-08-19

Applicant: IBM

Inventor： CHU SAM GAT-SHANG ,  KLIM PETER JUERGEN ,  LEE MICHAEL JU HYEOK ,  PAREDES JOSE ANGEL

IPC: G11C7/22

Abstract: A register file method incorporating read-after-write blocking using detection cells provides improved read access times in high performance register files. One or more detection cells identical to the register file cells and located in the register file array are used to control the read operation in the register file by configuring the detection cells to either alternate value at each write or change to a particular value after a write and then detecting when the write has completed by detecting the state change of an active detection cell. The state change detection can be used to delay the leading edge of a read strobe or may be used in the access control logic to delay generation of a next read strobe. The register file thus provides a scalable design that does not have to be tuned for each application and that tracks over voltage and clock skew variation.

公开(公告)号：MX2007002013A

公开(公告)日：2007-03-28

申请号：MX2007002013

申请日：2005-08-19

Applicant: IBM

Inventor： CHU SAM-GAT-SHANG ,  KLIM PETER JUERGEN ,  LEE MICHAEL JU HYEOK ,  PAREDES JOSE ANGEL

IPC: G11C7/00

Abstract: Un aparato y metodo de archivo de registro que incorpora bloqueo de lectura-despues-de escritura utilizando celdas de deteccion proporciona tiempos de acceso de lectura mejorados en archivos de registro de alto rendimiento. Una o mas celdas de deteccion identicas a las celdas del archivo de registro y ubicadas en el arreglo de archivos de registro se utilizan para controlar la operacion de lectura en el archivo de registro al configurar las celdas de deteccion ya sea aun valor alterno en cada escritura o cambio a un valor particular despues de una escritura y luego detectar cuando la escritura se ha completado al detectar el cambio de estado de una celda de deteccion activa. La deteccion del cambio de estado puede emplearse para retrasar el borde delantero de un estrobo del lectura o puede utilizarse en la logica de control de acceso para retrasar la generacion de un siguiente estrobo de lectura. El archivo de registro de esta manera proporciona un diseno ajustable en escala que no tiene que afinarse para cada aplicacion y que da seguimiento localiza sobre la variacion de sesgo de reloj y voltaje.

公开(公告)号：CA2577272A1

公开(公告)日：2006-02-23

申请号：CA2577272

申请日：2005-08-19

Applicant: IBM

Inventor： CHU SAM GAT-SHANG ,  KLIM PETER JUERGEN ,  LEE MICHAEL JU HYEOK ,  PAREDES JOSE ANGEL

IPC: G11C7/22

Abstract: A register file method incorporating read-after-write blocking using detection cells provides improved read access times in high performance register files. One or more detection cells identical to the register file cells and located in the register file array are used to control the read operation in the register file by configuring the detection cells to either alternate value at each write or change to a particular value after a write and then detecting when the write has completed by detecting the state change of an active detection cell. The state change detection can be used to delay the leading edge of a read strobe or may be used in the access control logic to delay generation of a next read strobe. The register file thus provides a scalable design that does not have to be tuned for each application and that tracks over voltage and clock skew variation.