USB 2.0 HSIC Hi-Speed 4-Port Hub Controller
Datasheet
Table 3.1 Pin Descriptions (continued)
BUFFER
NUM PINS
NAME
SYMBOL
TYPE
DESCRIPTION
Downstream
USB D+
USBDN3_DP
AIO
Downstream USB Port 3 D+ data signal.
(Port 3)
Port 3 D+
Disable
PRT_DIS_P3
IS
This strap is used in conjunction with
PRT_DIS_M3 to disable USB Port 3.
Configuration
Strap
0 = Port 3 D+ Enabled
1 = Port 3 D+ Disabled
1
Note:
Both PRT_DIS_P3 and PRT_DIS_M3
must be tied to VDD33 at reset to
disable the associated port.
See Note 3.3 for more information on
configuration straps.
Downstream
USB D-
(Port 3)
USBDN3_DM
PRT_DIS_M3
AIO
IS
Downstream USB Port 3 D- data signal.
Port 3 D-
Disable
This strap is used in conjunction with
PRT_DIS_P3 to disable USB Port 3.
Configuration
0 = Port 3 D- Enabled
1 = Port 3 D- Disabled
1
Strap
Note:
Both PRT_DIS_P3 and PRT_DIS_M3
must be tied to VDD33 at reset to
disable the associated port.
See Note 3.3 for more information on
configuration straps.
Downstream
USB D+
(Port 4)
USBDN4_DP
PRT_DIS_P4
AIO
IS
Downstream USB Port 4 D+ data signal.
Port 4 D+
Disable
This strap is used in conjunction with
PRT_DIS_M4 to disable USB Port 4.
Configuration
Strap
0 = Port 4 D+ Enabled
1 = Port 4 D+ Disabled
1
Note:
Both PRT_DIS_P4 and PRT_DIS_M4
must be tied to VDD33 at reset to
disable the associated port.
See Note 3.3 for more information on
configuration straps.
Revision 1.0 (06-17-13)
14
SMSC USB4604
DATASHEET
SMSC [ SMSC CORPORATION ]
