The receive hub port endpoint n 8-bit
read/write registers (USBRXHUBPORT[n]), like USBRXHUBADDR[n], must be
written only when a full- or low-speed device is connected to receive endpoint
EPn with a USB 2.0 hub. Each register records the port of the USB 2.0 hub
through which the target associated with the endpoint is accessed.
Note: USBTXHUBPORT0 is used for both receive and transmit for endpoint 0.
The USBRXHUBPORTn registers are shown in Figure 22-32 and described in Table 22-34.
Figure 22-32 USB Receive Hub Port
Endpoint n Register (USBRXHUBPORT[n])
LEGEND: R/W = Read/Write; -n = value after
reset |
Table 22-34 USB Receive Hub Port
Endpoint n Register (USBRXHUBPORT[n]) Field DescriptionsBit | Field | Value | Description |
---|
7 | Reserved | 0 | Reserved |
6-0 | PORT | 0 | Hub Port specifies the USB hub port number. |