LPC55S69 endpoints

[manuela_mendez]

Hello NXP Experts!

WRT UM11126 Rev 2.7 - LPC55S6x - I have two questions:

1. Section 41.2 says "Supports ten physical (five logical) endpoints including the control endpoints" and section 41.4 says "Each device can have a maximum of eight logical or 16 physical endpoints including control endpoint" - which one is correct? Could you please report to the doc team to fix this critical inconsistency?

2. Section 44.2 says USB1 "Supports 12 physical (6 logical) endpoints including control endpoints". When USB1 is configured to act as a full-speed device, will it still support 6 logical endpoints just like high-speed device mode?

Thanks in advance!

[manuela_mendez]

Thanks for the quick response Alice. Have a great day!

[Alice_Yang · Accepted solution]

Hello @manuela_mendez 

Sorry for the confusion DOC caused to you. For USB0 of the LPC55S6X, it supports ten physical (five logical) endpoints, including the control endpoints. I will submit a documentation issue to the relevant team for a fix. Thank you very much for your sharing.

Regarding question 2, yes, when USB1 is configured to act as a full - speed device,  it still support 6 logical endpoints.

BR

Alice