USB2512 Datasheet, PDF (22/37 Pages) SMSC Corporation – USB 2.0 High-Speed 2-Port Hub Controller

USB 2.0 High-Speed 2-Port Hub Controller
Datasheet
4.2.1.20 Register FAh: Port Swap
BIT
NUMBER
7:0
BIT NAME
PRTSP
DESCRIPTION
Port Swap: Swaps the Upstream and Downstream USB DP and DM Pins for
ease of board routing to devices and connectors.
‘0’ = USB D+ functionality is associated with the DP pin and D- functionality
is associated with the DM pin.
‘1’ = USB D+ functionality is associated with the DM pin and D- functionality
is associated with the DP pin.
Bit 7= Reserved
Bit 6= Reserved
Bit 5= Reserved
Bit 4= Reserved
Bit 3= Reserved
Bit 2= ‘1’; Port 2 DP/DM is Swapped.
Bit 1= ‘1’: Port 1 DP/DM is Swapped.
Bit 0= ‘1’:Upstream Port DP/DM is Swapped
Revision 1.92 (11-28-07)
22
DATASHEET
SMSC USB2512