USB4640-HZH SMSC [SMSC Corporation], USB4640-HZH Datasheet - Page 47

• Manufacturer Part Number: USB4640-HZH
• Description: High Speed Inter-Chip (HSIC) USB 2.0 Hub and Flash Media Controller
• Manufacturer: SMSC [SMSC Corporation]

High Speed Inter-Chip (HSIC) USB 2.0 Hub and Flash Media Controller
Datasheet
SMSC USB4640/USB4640i
8.4.4.20
BIT
7:0
F1h: Port Swap
BYTE NAME
PRT_SWP
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= Controls physical port 3
Bit 2= Controls physical port 2
Bit 1= Reserved
Bit 0= Controls physical port 0
DATASHEET
47
DESCRIPTION
Revision 1.0 (06-09-09)