Difference between revisions of "UDC"

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There is a USB client on handheld Vita devices. It uses a proprietary multi-connector on the OLED (PCH-1XXX) units and a micro-USB on the LCD (PCH-2XXX) units.
+
There is a USB client on handheld PS Vita devices. It uses a proprietary multi-connector on the OLED (PCH-1XXX) units and a micro-USB on the LCD (PCH-2XXX) units.
  
 
== PCH-1XXX Pinout ==
 
== PCH-1XXX Pinout ==
  
−
Because of the existence of the USB ethernet adapter, that means there exists a way to use the port in host mode probably through USB OTG or something similar.
+
[[File:UDC_male_pins.png|thumb|400px]]
 +
 
 +
Because of the existence of the USB Ethernet adaptor, there exists a way to use the port in host mode probably through USB OTG or something similar.
 +
 
 +
Teardown of PS Vita OLED dock [https://twitter.com/Jpk25Cr/status/1054750346734559232 here].
 +
 
 +
{| class="wikitable"
 +
! Pin
 +
! Name
 +
! Description
 +
|-
 +
| 1
 +
| Power?
 +
| N/C on cables and DevKit USB Ethernet adaptor, but connected on TestKit USB Ethernet adaptor. Goes to [[SN99057]] pins 31-32.
 +
|-
 +
| 2
 +
| Power?
 +
| Same net as pin 1
 +
|-
 +
| 3
 +
| Dock Analog Ground (TRRS Pin 3)
 +
| For stereo audio output
 +
|-
 +
| 4
 +
| Dock Right Channel Audio (TRRS Pin 2)
 +
| To audio codec IC
 +
|-
 +
| 5
 +
| Dock Left Channel Audio (TRRS Pin 1)
 +
| To audio codec IC
 +
|-
 +
| 6
 +
| Syscon UART RX
 +
| See [[UART Console]]
 +
|-
 +
| 7
 +
| Syscon UART TX
 +
| See [[UART Console]]
 +
|-
 +
| 8
 +
| Syscon UART CTS
 +
| See [[UART Console]]
 +
|-
 +
| 9
 +
| Syscon UART RTS
 +
| See [[UART Console]]
 +
|-
 +
| 10
 +
| Audio?
 +
| To audio codec IC. Not seen used anywhere.
 +
|-
 +
| 11
 +
| Accessory Enable/OTG
 +
| Digital signal. Pull-down to GND on dock. To Syscon (C11). Connected on USB Ethernet adaptor. Pulling to ground with pin 12 enables host usb mode. ADC sense?
 +
|-
 +
| 12
 +
| Dock TRRS Pin 4
 +
| Digital signal. To Syscon (F9). Connected on USB Ethernet adaptor.
 +
|-
 +
| 13
 +
| ?
 +
| To Syscon (G4). Not seen used anywhere.
 +
|-
 +
| 14
 +
| GND 1
 +
| GND on PS Vita and USB Ethernet adaptor. N/C on charging cable and dock.
 +
|-
 +
| 15
 +
| Outputs 2.5v on retail when MultiCn is in host mode
 +
| To large ceramic chip. 125K pull-down.
 +
|-
 +
| 16
 +
| GND 2
 +
| GND on PS Vita. N/C on USB Ethernet adaptor and charging cable. Small cap to USB GND on dock.
 +
|-
 +
| 17
 +
| VCC
 +
| +5V VDC
 +
|-
 +
| 18
 +
| VCC
 +
| Same net as pin 17
 +
|-
 +
| 19
 +
| GND 3
 +
| GND on PS Vita and charging cable. N/C on USB Ethernet adaptor. Large cap to USB GND on dock.
 +
|-
 +
| 20
 +
| D-
 +
| USB Data
 +
|-
 +
| 21
 +
| D+
 +
| USB Data
 +
|}
  
 
== PCH-2XXX Pinout ==
 
== PCH-2XXX Pinout ==
  
−
Port is a standard USB micro. Highly likely that USB OTG is supported in hardware although there's no evidence that it's enabled in software.
+
Port is a standard micro-USB Type B. USB OTG is also supported in hardware and software, as there is an Ethernet adaptor containing a micro-USB 2.0 type B connector as well (there exists a rare PTEL-20xx TestKit Ethernet Adapter:
 +
https://i.ibb.co/HDNHNDx/image0.jpg)
  
 +
[https://forum.devchroma.nl/index.php/topic,194.msg448.html#msg448 The "CBPS" also managed to get USB OTG working and was able to mount a USB drive via VitaShell].
  
 
{| class="wikitable"
 
{| class="wikitable"
 
! Pin
 
! Pin
−
! Type
+
! Name
 
! Description
 
! Description
 
|-
 
|-
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|-
 
|-
 
| 2
 
| 2
−
| D+
+
| D-
−
| Data
+
| USB Data
 
|-
 
|-
 
| 3
 
| 3
−
| D-
+
| D+
−
| Data
+
| USB Data
 
|-
 
|-
 
| 4
 
| 4
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| GND
 
| GND
 
| Ground
 
| Ground
−
|-
 
 
|}
 
|}
 +
  
 
[[Category:USB]]
 
[[Category:USB]]

Latest revision as of 13:56, 29 March 2024

There is a USB client on handheld PS Vita devices. It uses a proprietary multi-connector on the OLED (PCH-1XXX) units and a micro-USB on the LCD (PCH-2XXX) units.

PCH-1XXX Pinout

UDC male pins.png

Because of the existence of the USB Ethernet adaptor, there exists a way to use the port in host mode probably through USB OTG or something similar.

Teardown of PS Vita OLED dock here.

Pin Name Description
1 Power? N/C on cables and DevKit USB Ethernet adaptor, but connected on TestKit USB Ethernet adaptor. Goes to SN99057 pins 31-32.
2 Power? Same net as pin 1
3 Dock Analog Ground (TRRS Pin 3) For stereo audio output
4 Dock Right Channel Audio (TRRS Pin 2) To audio codec IC
5 Dock Left Channel Audio (TRRS Pin 1) To audio codec IC
6 Syscon UART RX See UART Console
7 Syscon UART TX See UART Console
8 Syscon UART CTS See UART Console
9 Syscon UART RTS See UART Console
10 Audio? To audio codec IC. Not seen used anywhere.
11 Accessory Enable/OTG Digital signal. Pull-down to GND on dock. To Syscon (C11). Connected on USB Ethernet adaptor. Pulling to ground with pin 12 enables host usb mode. ADC sense?
12 Dock TRRS Pin 4 Digital signal. To Syscon (F9). Connected on USB Ethernet adaptor.
13 ? To Syscon (G4). Not seen used anywhere.
14 GND 1 GND on PS Vita and USB Ethernet adaptor. N/C on charging cable and dock.
15 Outputs 2.5v on retail when MultiCn is in host mode To large ceramic chip. 125K pull-down.
16 GND 2 GND on PS Vita. N/C on USB Ethernet adaptor and charging cable. Small cap to USB GND on dock.
17 VCC +5V VDC
18 VCC Same net as pin 17
19 GND 3 GND on PS Vita and charging cable. N/C on USB Ethernet adaptor. Large cap to USB GND on dock.
20 D- USB Data
21 D+ USB Data

PCH-2XXX Pinout

Port is a standard micro-USB Type B. USB OTG is also supported in hardware and software, as there is an Ethernet adaptor containing a micro-USB 2.0 type B connector as well (there exists a rare PTEL-20xx TestKit Ethernet Adapter: https://i.ibb.co/HDNHNDx/image0.jpg)

The "CBPS" also managed to get USB OTG working and was able to mount a USB drive via VitaShell.

Pin Name Description
1 VCC +5V VDC
2 D- USB Data
3 D+ USB Data
4 ID USB OTG
5 GND Ground
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