TS3USB3200_16 Datasheet, PDF (10/23 Pages) Texas Instruments – USB 2.0 Applications

TS3USB3200
SCDS333B – JUNE 2012 – REVISED JULY 2016
www.ti.com
7.4 Device Functional Modes
The TS3USB32000 device can select which power supply pin V_CC or V_BUS will power the device when voltages
are present on both pins.
Table 1. Function Table (Power Source)
V_CC
L
V_BUS
L
PSEL ⁽¹⁾
X
POWER SOURCE
No Power. All I/O in High-Z
L
H
X
H
L
X
H
H
L
H
H
H
V_BUS
V_CC
V_CC
V_BUS
(1) The PSEL pin has 6-MΩ weak pulldown resistor to GND to make its default value to be LOW.
SEL1 ⁽¹⁾
L
L
H
H
Table 2. Function Table (Signal and ID Select)
SEL2 ⁽¹⁾
CONNECTION
High-Z
L
D+/D– to USB+/USB–, ID_COM to ID_USB MHL+/MHL–, ID_MHL
H
D+/D– to USB+/USB–, ID_COM to ID_MHL MHL+/MHL–, ID_USB
L
D+/D– to MHL+/MHL–, ID_COM to ID_USB USB+/USB–, ID_MHL
H
D+/D– to MHL+/MHL–, ID_COM to ID_MHL USB+/USB–, ID_USB
(1) The SEL1 and SEL2 pins have 6-MΩ weak pulldown resistor to GND to make their default value to be
LOW.
10
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