37.2 Features
The following are key features of the USB:
- Compatible with the USB 2.0 specification
- USB Embedded Host and Device mode
- Supports full (12 Mbit/s) and low (1.5 Mbit/s) speed communication
- Supports Link Power Management (LPM-L1) protocol
- On-chip transceivers with built-in pull-ups and pull-downs
- On-Chip USB serial resistors
- 1 kHz SOF clock available on external pin
- Device mode
- Supports 8 IN endpoints and 8 OUT endpoints
- No endpoint size limitations
- Built-in DMA with multi-packet and dual bank for all endpoints
- Supports feedback endpoint
- Supports crystal less clock
- Host mode
- Supports 8 physical pipes
- No pipe size limitations
- Supports multiplexed virtual pipe on one physical pipe to allow an unlimited USB tree
- Built-in DMA with multi-packet support and dual bank for all pipes
- Supports feedback endpoint
- Supports the USB 2.0 Phase-locked SOFs feature