LM3S3749 Datasheet, PDF (675/898 Pages) Texas Instruments – Stellaris® LM3S3749 Microcontroller

Stellaris® LM3S3749 Microcontroller
Register 42: USB Receive Hub Port Endpoint 1 (USBRXHUBPORT1), offset
0x08F
Register 43: USB Receive Hub Port Endpoint 2 (USBRXHUBPORT2), offset
0x097
Register 44: USB Receive Hub Port Endpoint 3 (USBRXHUBPORT3), offset
0x09F
Host
USBRXHUBPORTn is an 8-bit read/write register that, like USBRXHUBADDRn, only must be
written when a full- or low-speed Device is connected to receive endpoint EPn via a USB 2.0 hub.
This 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.
USB Receive Hub Port Endpoint 1 (USBRXHUBPORT1)
Base 0x4005.0000
Offset 0x08F
Type R/W, reset 0x00
7
6
5
4
3
2
1
0
reserved
PORT
Type RO
Reset
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
Bit/Field
7
6:0
Name
reserved
PORT
Type
RO
R/W
Reset
0
0x00
Description
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
Hub Port
This field specifies the USB hub port number.
November 17, 2011
675
Texas Instruments-Production Data