The receive hub address endpoint n 8-bit
read/write registers (USBRXHUBADDR[n]), like [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 address of the USB 2.0 hub through which the
target associated with the endpoint is accessed.
Note: USBTXHUBADDR0 is used for both receive and transmit for endpoint 0.
The USBRXHUBADDR[n] registers are shown in Figure 22-31 and described in Table 22-33.
Figure 22-31 USB Receive Hub Address Endpoint n Registers (USBRXHUBADDR[n])
LEGEND: R/W = Read/Write; -n = value after
reset |
Table 22-33 USB Receive Hub Address
Endpoint n Registers (USBRXHUBADDR[n]) Field DescriptionsBit | Field | Value | Description |
---|
7 | MULTTRAN | | Multiple Translators |
0 | Clear to indicate that the hub has a single transaction translator. |
1 | Set to indicate that the hub has multiple transaction translators. |
6-0 | ADDR | 0 | Device Address specifies the USB bus address for the target Device. |