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Add a table with known Kermit revisions and model numbers
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The PS Vita main SoC is a Toshiba <code>CXD5315GG</code>. The design is a stacked SoC with the SDRAM found in the same chip as the processor cores. Toshiba details their "[http://www.toshiba-components.com/ASIC/SiP.html Stacked Chip SOC]" on their site. From OS code and FCC documentation, it appears that the internal name of the chip is "Kermit".
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The PS Vita main SoC, nicknamed Kermit, is manufactured by Toshiba. The design is a stacked SoC with the SDRAM found in the same chip as the processor cores. Toshiba details their "[http://www.toshiba-components.com/ASIC/SiP.html Stacked Chip SOC]" on their site.
    
More information can be found at [https://web.archive.org/web/20150425204407/http://www.chipworks.com/en/technical-competitive-analysis/resources/blog/sonys-ps-vita-uses-chip-on-chip-sip-3d-but-not-3d/ Chipworks].
 
More information can be found at [https://web.archive.org/web/20150425204407/http://www.chipworks.com/en/technical-competitive-analysis/resources/blog/sonys-ps-vita-uses-chip-on-chip-sip-3d-but-not-3d/ Chipworks].
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[[File:T9ML7MBG-S.png|thumb|From FCC application 712137]]
 
[[File:T9ML7MBG-S.png|thumb|From FCC application 712137]]
 
According to the internal photos found in the [https://apps.fcc.gov/oetcf/eas/reports/ViewExhibitReport.cfm?mode=Exhibits&RequestTimeout=500&calledFromFrame=N&application_id=712137&fcc_id=AK8PCH1101A FCC filings], it appears that an earlier version of the chip is labeled <code>T9ML7MBG-S</code>. This does not appear to be a standard model and is likely custom designed in partnership with Sony Computer Entertainment Japan. It is possible that Sony used [http://www.toshiba-components.com/ASIC/index.html this service] from Toshiba in their design process which is why the prototype demonstrated in the FCC filing shows a Toshiba chip..
 
According to the internal photos found in the [https://apps.fcc.gov/oetcf/eas/reports/ViewExhibitReport.cfm?mode=Exhibits&RequestTimeout=500&calledFromFrame=N&application_id=712137&fcc_id=AK8PCH1101A FCC filings], it appears that an earlier version of the chip is labeled <code>T9ML7MBG-S</code>. This does not appear to be a standard model and is likely custom designed in partnership with Sony Computer Entertainment Japan. It is possible that Sony used [http://www.toshiba-components.com/ASIC/index.html this service] from Toshiba in their design process which is why the prototype demonstrated in the FCC filing shows a Toshiba chip..
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== Variants ==
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There are multiple known variants of Kermit. SoC revision is readable from [[Pervasive#.22SoC_revision.22|a ScePervasiveMisc register]].
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In the following table, a value of <code>0x000XXXYZ</code> will be named <code>Kermit [depends on XXX] ESYrZ</code>.
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{| class="wikitable"
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|+ Known Kermit revisions
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|-
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! Kermit revision !! SoC model number !! Unit model number !! Notes
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|-
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| Kermit ES4r2 || CXD5315GG || PCH-1xxx, VTE-10xx || Retail unit, ?512MiB LPDDR2?
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|-
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| Kermit ES4r2 || CXD5315GG-1 || PDEL-10xx || TOOL, ?1.5GiB LPDDR2?
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|-
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| Kermit ES1 || ??? || DEM revision before DEM-3000G || CPU is Cortex-A8, GPU is SGX541MP, ?no CDRAM? -  only ES1r0 and ES1r1 should exist
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|-
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| Kermit ES2 || ??? || DEM-3000G ?to DEM-3000H? || CPU is Cortex-A9, GPU is SGX543MP4+
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|-
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| Kermit ES3 || ??? || ?DEM-3000JEC, some DEM-3000K/J? ||
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|-
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| Kermit ES4r? || T9ML7MBG-S || CEM-3000VD1 || [https://fccid.io/AK8PCH1001A Unit used for PCH-1001 certification uses this chip]. Assumed to be ES4, probably ES4r2
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|-
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| Kermit15 ES1r5 || CXD5316GG || PCH-20xx || Name comes from <code>KERMIT15</code> string in [[SceSysStateMgr]] - might stand for "Kermit 1.5". Some version of this chip has the <code>AU_CODEC_IC_CONEXANT</code>.
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|}
    
== Schema ==
 
== Schema ==
369

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