#Usb port pinout schematic Pc
#Usb port pinout schematic windows

But it could be possible that it is coming up as Generic Non-PnP Monitor due to hardware connection issue on your test board as you mentioned. The logs look fine and it seems that the Display Port negotiation is completing. Looks to me like Alt Mode negotiation begins at around SL#35. I have attached the log of events from the EZ-PD Analyzer upon connection of the USB-C cable. Because the firmware specifically refers to them as AUX resistors, we were under the impression they should be used for 1M. Are they just hidden/preconfigured in some way? This led to some confusion on our end, thinking that the resistors on the out (AUX) side were for the 1M DisplayPort resistors rather than 470k and 4.7M. However, in the Registers TRM I can find no reference to the PU/PD resistors on the in (SBU) side before the switches, I can only find control bits for the PU/PD on the output side. As per the Architecture TRM, each line has internal PU/PD resistors on the SBU side as well as the AUX side: I also have a question regarding the SBU->AUX block of the CCG3. Just to confirm (since we don't have access to a DisplayPort spec that includes USB-C alt-mode specifications), the CYPD3120 should be setting 470k and 4.7M internally, and the AUX_N and AUX_P signals will still require their external 1M PD/PU resistors? We have tried plugging in the cable in all 4 possible orientations, the monitor shows up in Device Manager as 'Generic Non-PnP Monitor' in all orientations, but I am unable to enable the monitor in Display Settings (Selecting 'Extend Desktop to this Display' on the dropdown just returns to 'Disconnect This Display') Right now we are trying to determine if we need a HD3SS460 as well for our design. It looks like in our next revision of this prototype we will be using a TUSB564. One more question, would having a USB-C receptacle rather than a plug require use of a Demux such as a TUSB564 on the UFP? Or would a mux on the DFP be sufficient to put the DP lanes in the correct orientation for the config on the UFP? This seems to work (the AUX+ and AUX- signals look to be within spec) but I wanted to clarify the firmware comments above and make sure I'm understanding correctly. We actually have these 1M resistors populated external to the CYPD3120, so we have the firmware configured for no internal PU/PD:ДЄux_resistor_configure (AUX_NO_RESISTOR, AUX_NO_RESISTOR) If I'm not mistaken, shouldn't this be the opposite of the comment? Going by the VESA standard for DisplayPort, it looks like we want the Sink side to have 1M PU/PD on AUXP and AUXN respectively: If (dp_sink_get_pin_config () = DP_DFP_D_CONFIG_E)ДЄux_resistor_configure (AUX_1_470K_PD_RESISTOR, AUX_2_4P7MEG_PD_RESISTOR) ДЄux_resistor_configure (AUX_1_1MEG_PU_RESISTOR, AUX_2_1MEG_PD_RESISTOR) * Configure AUX1/2 resistor pull up/down based on DP configuration. I also have a question regarding the DisplayPort AUX lines. Is this OK? Or will we need to switch them to Rx1 and Tx1 for proper function? I notice that these are connected to Rx2 and Tx2 respectively. My main concern is the DP0 and DP1 lanes. Luckily we were able to account for this in the CYPD3120 firmware by adjusting mux_ctrl_set_cfg() in datamux_ctrl.c to swap the switch positions. One issue we noticed is that SBU1 is assigned to AUX- and SBU2 is assigned to AUX+, which is the reverse of what it should be. We know that the CC lines are OK, as the power delivery is working great and we are providing 15V/2.5A to the monitor board with no problems. Here is the schematic of our monitor input connector: We are intending to run the Alt-Mode DP in Mode E. I suspect that maybe we have an issue with the pinout of the receptacle in regard to the DP lanes. Our board is acting as a USB-C Monitor, not a dongle, so we are using a USB-C receptacle rather than a USB-C Plug.

#Usb port pinout schematic Pc

This eval kit is connected by USB-C to our test board, which uses a CYPD3120 for the USB-C and a separate Bridge IC (NXP PTN3460I) to convert the (2 DP Lanes + AUX) Displayport to LVDS for output to our display panel as well as provide EDID information to the host PC via the DP AUX lines. We have tested this with a standard retail USB-C monitor and it works without issue. Our test rig consists of a CCG4 Eval Kit (CY4541) connected in DisplayPort Demo mode as described in Section 6.3 of the CCG4 EVK Guide.

#Usb port pinout schematic windows

We are able to see the device in windows as a 'Generic Non-PnP Monitor', but it cannot be enabled in Display Settings, so I'm thinking something might be fishy with how the DP lanes are wired. We are running into some issues getting the device to actually behave as a monitor. I've been working on a USB-C monitor project utilizing a CYPD3120 to handle the USB-C DP and Power Delivery interface.