UDC: Difference between revisions

From Vita Development Wiki
Jump to navigation Jump to search
Line 6: Line 6:


Because of the existence of the USB ethernet adaptor, that means there exists a way to use the port in host mode probably through USB OTG or something similar.
Because of the existence of the USB ethernet adaptor, that means there exists a way to use the port in host mode probably through USB OTG or something similar.
Teardown of Vita OLED dock [https://twitter.com/Jpk25Cr/status/1054750346734559232 here].


{| class="wikitable"
{| class="wikitable"
Line 21: Line 23:
|-
|-
| 3
| 3
| Host detect?
| Analog Ground (TRRS Pin 3)
| GND on Vita and charger cable, connected to something on USB ethernet adapter
| For stereo output
|-
|-
| 4
| 4
| Digital audio out
| Right Channel Audio (TRRS Pin 2)
| To audio codec IC
| To audio codec IC
|-
|-
| 5
| 5
| Digital audio out
| Left Channel Audio (TRRS Pin 1)
| Same net as pin 4
| To audio codec IC
|-
|-
| 6
| 6
Line 50: Line 52:
| 10
| 10
| Audio?
| Audio?
| To audio codec IC
| To audio codec IC, not seen used anywhere.
|-
|-
| 11
| 11
| ?Headset GND?
| Accessory Enable?
| To Syscon (C11), connected on USB Ethernet
| Digital signal. Pull-down to GND on dock. To Syscon (C11), connected on USB Ethernet
|-
|-
| 12
| 12
| ?Headset?
| TRRS Pin 4
| To Syscon (F9), connected on USB Ethernet
| Digital signal. To Syscon (F9), connected on USB Ethernet
|-
|-
| 13
| 13
| ?
| ?
| To Syscon (G4)
| To Syscon (G4), not seen used anywhere.
|-
|-
| 14
| 14
| ?GND?
| GND 1
| GND on Vita and USB ethernet adapter, N/C on charging cable  
| GND on Vita and USB ethernet adapter, N/C on charging cable and dock
|-
|-
| 15
| 15
Line 73: Line 75:
|-
|-
| 16
| 16
| GND
| GND 2
| GND on Vita, N/C on USB ethernet and charging cable
| GND on Vita, N/C on USB ethernet and charging cable, small cap to GND on dock
|-
|-
| 17
| 17
Line 85: Line 87:
|-
|-
| 19
| 19
| GND
| GND 3
| GND on Vita and charging cable, N/C on USB ethernet
| GND on Vita and charging cable, N/C on USB ethernet, large cap to GND on dock
|-
|-
| 20
| 20

Revision as of 16:53, 23 October 2018

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.

PCH-1XXX Pinout

UDC male pins.png

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

Teardown of Vita OLED dock here.

Pin Name Description
1 Power? No known use (N/C on cables, USB ethernet), goes to SN99057 pins 31-32
2 Power? Same net as pin 1
3 Analog Ground (TRRS Pin 3) For stereo output
4 Right Channel Audio (TRRS Pin 2) To audio codec IC
5 Left Channel Audio (TRRS Pin 1) To audio codec IC
6 UART RX See UART Console
7 UART TX See UART Console
8 UART CTS See UART Console
9 UART RTS See UART Console
10 Audio? To audio codec IC, not seen used anywhere.
11 Accessory Enable? Digital signal. Pull-down to GND on dock. To Syscon (C11), connected on USB Ethernet
12 TRRS Pin 4 Digital signal. To Syscon (F9), connected on USB Ethernet
13 ? To Syscon (G4), not seen used anywhere.
14 GND 1 GND on Vita and USB ethernet adapter, N/C on charging cable and dock
15 ?Peripheral Detect? To large ceramic chip, 125K pull-down
16 GND 2 GND on Vita, N/C on USB ethernet and charging cable, small cap to GND on dock
17 VCC +5V VDC
18 VCC Same net as pin 17
19 GND 3 GND on Vita and charging cable, N/C on USB ethernet, large cap to GND on dock
20 D- USB Data
21 D+ USB Data

PCH-2XXX Pinout

Port is a standard micro-USB Type B. Highly likely that USB OTG is supported in hardware although there's no evidence that it's enabled in software.

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