Global Patent Index - EP 1236090 A1

EP 1236090 A1 2002-09-04 - SYSTEM AND METHOD TO IMPLEMENT A CROSS-BAR SWITCH OF A BROADBAND PROCESSOR

Title (en)

SYSTEM AND METHOD TO IMPLEMENT A CROSS-BAR SWITCH OF A BROADBAND PROCESSOR

Title (de)

SYSTEM UND VERFAHREN ZUM IMPLEMENTIEREN EINES CROSS-BARSCHALTERS EINES BREITBANDPROZESSORS

Title (fr)

SYSTEME ET PROCEDE DE MISE EN OEUVRE DE COMMUTATEUR CROSSBAR DE PROCESSEUR LARGE BANDE

Publication

EP 1236090 A1 (EN)

Application

EP 00910150 A

Priority

  • US 0003566 W
  • US 11984199 P
  • US 38240299 A

Abstract (en)

[origin: WO0048070A1] The present invention provides a cross-bar circuit (100) that implements a switch (115) of a broadband processor. The cross-bar circuit (100) includes: a switch circuit (115) which includes 2<m>.2<n>:1 multiplexor circuits (202-204) where each of the 2<n>:1 multiplexor circuits (202-204) has a unique n-bit index input, one disable input, and a 2<n>-bit wide source input receives an n-bit index at the n-bit index input, a disable bit at the disable input, and the 2<n>-bit input source word at the 2<n>-bit wide source input, and decodes the n-bit index either to select and output as an output destination bit one bit from the 2<n>-bit input source word if the disable bit has a logic low value; a cache memory (110) that has 2<m> cache datapath inputs; and 2<m> cache index input; and a control circuit (105) that has a plurality of control inputs receives the partially decoded instruction information on the plurality of control inputs, provides a second set of the n-bit indexes for the switch circuit (115), and provides the disable bits for the switch circuit (115) where the control circuit (105) is logically coupled to the switch circuit (115) and to the cache memory (110).

IPC 1-7 (main, further and additional classification)

G06F 9/30

IPC 8 full level (invention and additional information)

G06F 7/76 (2006.01); G06F 9/308 (2006.01)

CPC (invention and additional information)

G06F 7/76 (2013.01); G06F 9/30018 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 0048070 A1 20000817; EP 1236090 A1 20020904; EP 1236090 A4 20020904

INPADOC legal status


2003-12-10 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20030604

2003-03-12 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030124

2002-09-04 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010809

2002-09-04 [A4] DESPATCH OF SUPPLEMENTARY SEARCH REPORT

- Effective date: 20020718

2002-09-04 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2002-09-04 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE