[SOLVED] What does OTG mean for MCU? USB OTG?

[K33rg4t3]

Hey
I am browsing the data about available MCU and I stumbled upon this:

https://eu.mouser.com/ProductDetail...4FJ256GB106-I-PT/?qs=6BzZZ83GlZuB6Zf4nd8Ivw==

Description:
16-bit Microcontrollers - MCU 16B 16MIPS 256KB I/O RAM52 OTG

I know it is related to USB:
":USB v2.0 On-The-Go (OTG) Compliant"

but what exacly does it mean from a engineer points of view and what's the difference with "common" USB PIC like 2550 or 4550?

 

[FvM]

Read USB specifications to know what OTG means in detail.

In a brief it has limited USB host functionality, can connect to specific USB devices that are considered in the firmware, e.g. a memory stick, a keyboard or a printer.

 

[K33rg4t3]

Ahhh this short explanations tells me all I need to start. I've almost confused OTG with OTP (One Time Programmable) Thanks anyway!