Datasheet

High-Speed Inter-Chip (HSIC) USB 2.0 Hub and Flash Media Controller
Datasheet
SMSC USB4640/USB4640i 43 Revision 1.3 (03-13-13)
DATASHEET
4.4.4.20 F1h: Port Swap
BIT BYTE NAME DESCRIPTION
7:0 PRT_SWP 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 : rsvd
Bit 6 : rsvd
Bit 5 : rsvd
Bit 4 : rsvd
Bit 3 : controls physical port 3
Bit 2 : controls physical port 2
Bit 1 : rsvd
Bit 0 : controls physical port 0