Difference between revisions of "SRAM 10T"

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<p class="P2">Tom Golubev</p><p class="P2">CMPE 222 F09</p><p class="P2">10/12/09</p><p class="P2">&nbsp;</p><p class="P1">VLSI Project Proposal</p><p class="P1">&nbsp;</p><p class="P3">Extend the SRAM compiler to support 2 Read ports. &nbsp;This entails creating a 2 read port cell, making the compiler tile it, then adding more address decoders and sense amps. &nbsp;A high metal layer may be necessary (M3) for the decoders of the 2<span class="T1">nd</span> port. &nbsp;This project is half layout, half python compiler scripting.</p><p class="P3">&nbsp;</p><p class="P3">&nbsp;</p><p class="P3">* Denotes perceived difficulty, from low * to high ***</p><p class="P3">&nbsp;</p><p class="P3">Basic Plan: </p><ul><li><p class="P4" style="margin-left: 0cm;"><span class="Bullet_20_Symbols" style="display: block; float: left; min-width: 0cm;">•.</span>*Understand Python script / study 1R/1W cell<span class="odfLiEnd">&nbsp;</span></p></li><li><p class="P4" style="margin-left: 0cm;"><span class="Bullet_20_Symbols" style="display: block; float: left; min-width: 0cm;">•.</span>**Create / Simulate 2R/1W standard cell<span class="odfLiEnd">&nbsp;</span></p></li><li><p class="P4" style="margin-left: 0cm;"><span class="Bullet_20_Symbols" style="display: block; float: left; min-width: 0cm;">•.</span>*Add 2R/1W option into compiler<span class="odfLiEnd">&nbsp;</span></p></li><li><p class="P4" style="margin-left: 0cm;"><span class="Bullet_20_Symbols" style="display: block; float: left; min-width: 0cm;">•.</span>*Make compiler tile the 2R/1W cell<span class="odfLiEnd">&nbsp;</span></p></li><li><p class="P4" style="margin-left: 0cm;"><span class="Bullet_20_Symbols" style="display: block; float: left; min-width: 0cm;">•.</span>*Figure out where to put address decoders / sense amps<span class="odfLiEnd">&nbsp;</span></p></li><li><p class="P4" style="margin-left: 0cm;"><span class="Bullet_20_Symbols" style="display: block; float: left; min-width: 0cm;">•.</span>***Decide which metal layer 2<span class="T1">nd</span> read port interconnects will be on, metal3?<span class="odfLiEnd">&nbsp;</span></p></li><li><p class="P4" style="margin-left: 0cm;"><span class="Bullet_20_Symbols" style="display: block; float: left; min-width: 0cm;">•.</span>***Have compiler wire interconnects for 2<span class="T1">nd</span> port<span class="odfLiEnd">&nbsp;</span></p></li><li><p class="P4" style="margin-left: 0cm;"><span class="Bullet_20_Symbols" style="display: block; float: left; min-width: 0cm;">•.</span>**Test / Debug &nbsp;/ validate<span class="odfLiEnd">&nbsp;</span></p></li></ul><p class="P3"><span style=""></span></p><p class="P3">Extended Plan:</p><ul><li><p class="P5" style="margin-left: 0cm;"><span class="Bullet_20_Symbols" style="display: block; float: left; min-width: 0cm;">•.</span>*Simulate with CACTI<span class="odfLiEnd">&nbsp;</span></p></li><li><p class="P5" style="margin-left: 0cm;"><span class="Bullet_20_Symbols" style="display: block; float: left; min-width: 0cm;">•.</span>**Try reducing area / power<span class="odfLiEnd">&nbsp;</span>
  
  
 
[[File:10T_cell_present.png||800px|left|SRAM Cell Port Definitions]]
 
[[File:10T_cell_present.png||800px|left|SRAM Cell Port Definitions]]

Latest revision as of 00:22, 8 November 2009

Tom Golubev's F09 CMPE222 Project

Tom Golubev

CMPE 222 F09

10/12/09

 

VLSI Project Proposal

 

Extend the SRAM compiler to support 2 Read ports.  This entails creating a 2 read port cell, making the compiler tile it, then adding more address decoders and sense amps.  A high metal layer may be necessary (M3) for the decoders of the 2nd port.  This project is half layout, half python compiler scripting.

 

 

* Denotes perceived difficulty, from low * to high ***

 

Basic Plan:

  • •.*Understand Python script / study 1R/1W cell 

  • •.**Create / Simulate 2R/1W standard cell 

  • •.*Add 2R/1W option into compiler 

  • •.*Make compiler tile the 2R/1W cell 

  • •.*Figure out where to put address decoders / sense amps 

  • •.***Decide which metal layer 2nd read port interconnects will be on, metal3? 

  • •.***Have compiler wire interconnects for 2nd port 

  • •.**Test / Debug  / validate 

Extended Plan:

  • •.*Simulate with CACTI 

  • •.**Try reducing area / power 


    SRAM Cell Port Definitions