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TUSB422: About PD 3.0 Get Source Capabilities Extended Message

Part Number: TUSB422


Hi team,

According to the datasheet, the only difference between PD3.0 and TUSB422 specification is PD 3.0 Get Source Capabilities Extended Message. Is that correct? Are there any differences with PD3.0 specification and TUSB422 specification?

If possible, could you explain the reason why TUSB422 can't support "PD 3.0 Get Source Capabilities Extended Message"?

Regards,

Saito