USB 2.0 HSIC Hi-Speed 4-Port Hub Controller
Datasheet
Table 3.1 Pin Descriptions (continued)
BUFFER
NUM PINS
NAME
SYMBOL
TYPE
DESCRIPTION
FLEX_USBUP_DM
Upstream
USB D-
AIO
Upstream USB Port 0 D- data signal.
See Note 3.2.
(Flex Port 0)
Note:
The upstream Port 0 signals can be
optionally swapped with the
downstream Port 1 signals.
Port 0 D-
Disable
Configuration
Strap
PRT_DIS_M0
IS
This strap is used in conjunction with
PRT_DIS_P0 to disable USB Port 0.
1
0 = Port 0 D- Enabled
1 = Port 0 D- Disabled
Note:
Both PRT_DIS_P0 and PRT_DIS_M0
must be tied to VDD33 at reset to place
Port 0 into HSIC mode.
See Note 3.3 for more information on
configuration straps.
FLEX_HSIC_UP_
DATA
Upstream
HSIC Data
(Flex Port 0)
HSIC
HSIC
Upstream HSIC Port 0 DATA signal.
See Note 3.2.
1
1
Note:
The upstream Port 0 signals can be
optionally swapped with the
downstream Port 1 signals.
FLEX_HSIC_UP_
STROBE
Upstream
HSIC Strobe
(Flex Port 0)
Upstream HSIC Port 0 STROBE signal.
See Note 3.2.
Note:
The upstream Port 0 signals can be
optionally swapped with the
downstream Port 1 signals.
SWAP_USBDN1_DP
Downstream
USB D+
(Swap Port 1)
AIO
IS
Downstream USB Port 1 D+ data signal.
Note:
The downstream Port 1 signals can be
optionally swapped with the upstream
Port 0 signals.
Port 1 D+
Disable
PRT_DIS_P1
This strap is used in conjunction with
PRT_DIS_M1 to disable USB Port 1.
1
Configuration
Strap
0 = Port 1 D+ Enabled
1 = Port 1 D+ Disabled
Note:
Both PRT_DIS_P1 and PRT_DIS_M1
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)
12
SMSC USB4604
DATASHEET
SMSC [ SMSC CORPORATION ]
