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TUSB8043 Datasheet(PDF) 8 Page - Texas Instruments

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Part # TUSB8043
Description  Four-Port USB 3.1 Gen1 Hub
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TUSB8043 Datasheet(HTML) 8 Page - Texas Instruments

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TUSB8043
SLLSEW4 – JUNE 2017
www.ti.com
Product Folder Links: TUSB8043
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Copyright © 2017, Texas Instruments Incorporated
Pin Functions (continued)
PIN
I/O
DESCRIPTION
NAME
NO.
GANGED/SMBA2/
HS_UP
42
I/O, PD
Ganged operation enable/SMBus Address bit 2/HS Connection Status Upstream Port.
The value of the pin is sampled at the de-assertion of reset to set the power switch and over
current detection mode as follows:
0 = Individual power control supported when power switching is enabled
1 = Power control gangs supported when power switching is enabled
When SMBus mode is enabled using SMBUSz, this pin sets the value of the SMBus slave
address bit 2.
After reset, this signal indicates the High-speed USB connection status of the upstream port if
enabled through the stsOutputEn bit in Additional Feature Configuration register. When
enabled, a value of 1 indicates the upstream port is connected to a High-speed USB capable
port.
Note: Individual power control must be enabled for battery charging applications.
AUTOENz/
HS_SUSPEND
45
I/O, PU
Automatic Charge Mode Enable/HS Suspend Status.
The value of the pin is sampled at the de-assertion of reset to determine if automatic mode is
enabled as follows:
0 = Automatic Mode is enabled on ports that are enabled for battery charging when the
hub is unconnected. Please note that CDP is not supported on Port 1 when operating in
Automatic mode.
1 = Automatic Mode is disabled
This value is also used to set the autoEnz bit in the Battery Charging Support Register.
After reset, this signal indicates the High-speed USB Suspend status of the upstream port if
enabled through the stsOutputEn bit in Additional Feature Configuration register. When
enabled, a value of 1 indicates the connection is suspended.
TEST
49
I, PD
This pin is reserved for factory test. It is suggested to have this pin pulled down to ground on
PCB.
Power and Ground Signals
VDD
5, 8,
13, 21,
28, 31,
51, 57
PWR
1.1-V power rail
VDD33
16, 34,
52, 63
PWR
3.3-V power rail
VSS (Thermal Pad)
PWR
Ground. Thermal pad must be connected to ground.
NC
60
No connect, leave floating


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