ALT MODE DISPLAY PORT SINK based on CCG4 EZ-PD DOCK REF design

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ALT MODE DISPLAY PORT SINK based on CCG4 EZ-PD DOCK REF design

siphc_4035681
Level 1
Level 1
‎Feb 07, 2019 01:08 AM
‎Feb 07, 2019 01:08 AM
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Hi,

I am working on the alternate mode DisplayPort SINK design. I only need DisplayPort signal in alternate mode via usb type-c connector.

Based on EZ-PD DOCK REF design I cut out blocks/chips not required for my design. Please take a look at attached block diagram and please advice, if it is required to change. To be able to get the DisplayPort signal pass through type C connector to  PS8742B mux --> to DisplayPort splitter and for the flipping control CCG4 CYPD4236 will be used as provided in ref design.  My question is: Do I need DMC controller CY7C65219 also?

For the Firmware side: CCG4 USB-PD CONTROLLER FW, supplied with the EZ-PD DOCK REF design can be used for alt DP SINK application or does it need to modify?

(I don't need any Power source/sink or any usb functions in the design, strictly only for displayPort signal.), Thanks!

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Re: ALT MODE DISPLAY PORT SINK based on CCG4 EZ-PD DOCK REF design

RajathB_01
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250 replies posted 100 replies posted 50 replies posted
In response to siphc_4035681
‎Feb 07, 2019 09:45 PM
‎Feb 07, 2019 09:45 PM
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Hi,

  • Billboard is required for alt mode sink. You can see it is present in CCG2 ref design as well.
  • Dock ref design uses CY7C65219 as DMC+billboard. you will not require DMC functionality but billboard is required. Your question will be better answered by this collateral.
  • The CCG4 Dock FW will be slightly different to standard FW since it includes DMC and other components related to power system and USB datapath.
  • FW programming can be done through either SWD + miniprog3 or I2C (CYPD4236 comes pre-programmed with I2C bootloader + application firmware).

Regards,

Rajath

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