Freescale Semiconductor TWR-MCF52259-Ethenet manual Host Negotiation Protocol

Appendix A USB On-the-Go

USB On-the-Go:Negotiation process

Host Negotiation Protocol continued:

6.To return control back to OTG-A (host) , OTG-B (device) stops using bus and becomes peripheral/device.

7.OTG-A (host) sees lack of activity, disconnectsTM and becomes host.

Note: If the OTG-B (device) does not STALL the

SetFeature(b_hnp_enable) command, the OTG-A (host) must give the OTG-B (device) an opportunity to become host before the OTG-A

(host) may turn off VBUS.