Device Detach

Zynq UltraScale+ Device Technical Reference Manual (UG1085)

Document ID
UG1085
Release Date
2022-09-15
Revision
2.3 English

When the device is detached from a root hub port, the PORTSC current connection status (CCS) bit is cleared to 0 and the connect status change (CSC) bit is set to 1.

If a 0 to 1 transition of PSCEG occurs, the xHCI reports the change through a port status change event.

After the detection of detach, system software disables the device slot associated with the port by issuing a disable slot command for the affected slot.