Datasheet

USB 2.0 Hub and 10/100 Ethernet Controller
Datasheet
SMSC LAN9512/LAN9512i 27 Revision 1.2 (02-29-12)
DATASHEET
35h Port Swap Register (PRTSP)
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 = 1; Port 3 DP/DM is swapped
Bit 2 = 1; Port 2 DP/DM is swapped
Bit 1 = RESERVED
Bit 0 = 1; Upstream Port DP/DM is swapped
00h
Table 3.3 Hub Configuration (continued)
EEPROM
OFFSET DESCRIPTION DEFAULT