This section defines requirements for non-legacy implementations to support serial port capabilities.
13. Serial port complies with device-class specifications for its bus
| Required |
As required for all PC 97 devices, a serial port implementation that uses a non-legacy bus must meet the specific device-class requirements for that bus.
For example, a serial port implementation that uses USB must comply with all related USB specifications, including the USB Specification 1.0 (or higher) and Universal Serial Bus Device Class Definition for Communication Devices 1.0 (or higher). The appendix titled "Standard Serial Interface Circuit Emulation" in the USB Device Class Definition for Communication Devices specifically addresses compatibility for serial ports.