TUSB8044RGCT datasheet(8/61 Pages) TI1

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TUSB8044

SLLSEW5 – APRIL 2017

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Pin Functions (continued)

I/O

DESCRIPTION

NAME

NO.

BBbmConfigured1/AUT

OENz/HS_SUSPEND

I/O, PD

When configured for I2C mode, this pin along with BBbmConfigured0 directly controls the

bmConfigurated field in the Billboard Capability descriptor. If SMBus is selected, then

bmConfigured[1] field is determined by a register.

If SMBus is selected, the sampled value of this pin will set or clear the autoEnz bit in the

Battery Charging Support Register. SMBus master can at a later time override the register.

If SMBus is selected and stsOutputEn bit is set, this pin will function as a HS_SUSPEND

(upstream HS suspend indicator). When enabled, a value of 1 indicates the connection is

suspended.

TEST

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.

—

No connect, leave floating

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