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The PSvita 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 reversing code and looking at FCC documentation, it appears that the internal name of the chip is "Kermit".
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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".
    
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:kermit-bga.png|600px|Source is a [[Media:Kermit_bga.numbers.zip|iWork Numbers file]].]]
 
[[File:kermit-bga.png|600px|Source is a [[Media:Kermit_bga.numbers.zip|iWork Numbers file]].]]
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The pinout is mostly reversed from the [http://wololo.net/talk/viewtopic.php?p=402775 PCB delayer] and is based off of PCH-1XXX on the IRS-002 board. It may not include some pins only used in other Vita models.
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The pinout is mostly reversed from the [http://wololo.net/talk/viewtopic.php?p=402775 PCB delayer] and is based off of PCH-1XXX on the IRS-002 board. It may not include some pins only used in other PS Vita models.
    
=== UART ===
 
=== UART ===
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| RX5 || A17 || UART5 receive
 
| RX5 || A17 || UART5 receive
 
|}
 
|}
      
=== USB ===
 
=== USB ===
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| DAT7 1 || W2 || Gamecard DAT7 (unused)
 
| DAT7 1 || W2 || Gamecard DAT7 (unused)
 
|-
 
|-
| CLK 2 || T1 || Wifi/BT clock
+
| CLK 2 || T1 || Wlan/Bt clock
 
|-
 
|-
| CMD 2 || Q1 || Wifi/BT CMD
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| CMD 2 || Q1 || Wlan/Bt CMD
 
|-
 
|-
| DAT0 2 || S1 || Wifi/BT DAT0
+
| DAT0 2 || S1 || Wlan/Bt DAT0
 
|-
 
|-
| DAT1 2 || S2 || Wifi/BT DAT1
+
| DAT1 2 || S2 || Wlan/Bt DAT1
 
|-
 
|-
| DAT2 2 || R1 || Wifi/BT DAT2
+
| DAT2 2 || R1 || Wlan/Bt DAT2
 
|-
 
|-
| DAT3 2 || R2 || Wifi/BT DAT3
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| DAT3 2 || R2 || Wlan/Bt DAT3
 
|-
 
|-
 
| Vddq || U1 || SDIO voltage regulation
 
| Vddq || U1 || SDIO voltage regulation
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| Vddq || U2 || SDIO voltage regulation
 
| Vddq || U2 || SDIO voltage regulation
 
|}
 
|}
      
=== MS ===
 
=== MS ===
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| DAT3 || AC10 || Memorycard DAT3
 
| DAT3 || AC10 || Memorycard DAT3
 
|}
 
|}
      
=== MIPI DSI ===
 
=== MIPI DSI ===
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| D1- 0 || G1 || Internal display data 1 lane
 
| D1- 0 || G1 || Internal display data 1 lane
 
|}
 
|}
      
=== MIPI CSI ===
 
=== MIPI CSI ===
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|  || AD22 || Front/back camera
 
|  || AD22 || Front/back camera
 
|}
 
|}
      
=== SPI ===
 
=== SPI ===
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| MOSI 0 || Z14 || Syscon SPI input
 
| MOSI 0 || Z14 || Syscon SPI input
 
|-
 
|-
| CS 1 || AA12 || Accelerometer IC SPI chip select
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| CS 1 || AA12 || Motion (accelerometer IC) SPI chip select
 
|-
 
|-
| SCK 1 || Z13 || Accelerometer IC SPI clock
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| SCK 1 || Z13 || Motion (accelerometer IC) SPI clock
 
|-
 
|-
| MISO 1 || AA13 || Accelerometer IC SPI output
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| MISO 1 || AA13 || Motion (accelerometer IC) SPI output
 
|-
 
|-
| MOSI 1 || Z12 || Accelerometer IC SPI input
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| MOSI 1 || Z12 || Motion (accelerometer IC) SPI input
 
|-
 
|-
 
| CS 2 || AA10 || P1P40167 clock synthesizer SPI chip select
 
| CS 2 || AA10 || P1P40167 clock synthesizer SPI chip select
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| Syscon || A20 || To syscon
 
| Syscon || A20 || To syscon
 
|-
 
|-
| Motion || E25 || To accelerometer IC
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| Motion || E25 || To Motion (accelerometer IC)
 
|-
 
|-
| Motion || A26 || To accelerometer IC
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| Motion || A26 || To Motion (accelerometer IC)
 
|-
 
|-
 
| Camera || E21 || To camera
 
| Camera || E21 || To camera
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| eMMC RST_N || B26 || RST_N of eMMC
 
| eMMC RST_N || B26 || RST_N of eMMC
 
|}
 
|}
      
=== I2C ===
 
=== I2C ===
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| pullup? || AB29 || Goes to a pullup resistor?
 
| pullup? || AB29 || Goes to a pullup resistor?
 
|-
 
|-
| Wifi || AA9 || Goes to Wifi SoC
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| Wlan/Bt || AA9 || Goes to Wlan/Bt SoC
 
|-
 
|-
 
| pad W4 || X4 || Goes to pad, connects with W4
 
| pad W4 || X4 || Goes to pad, connects with W4
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