STUSB1600 datasheet(32/69 Pages) STMICROELECTRONICS

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I2C register map

STUSB1600

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DocID028937 Rev 1

The VBUS UVLO threshold is fixed to 3.9 V.

The VCONN UVLO threshold is defined in the VCONN_MONITORING_CTRL register.

The reset value of the VCONN_PRESENCE bit is:

•

0b when VCONN is not supplied on the VCONN pin, or when VCONN is supplied and the

voltage level is below the UVLO threshold, or when the VCONN threshold detection

circuit is disabled.

•

1b when VCONN is supplied on the VCONN pin and the voltage level is above UVLO

threshold.

5.1.7

CC_OPERATION_STATUS

Address: 11h

Access: RO

Note: this register gives the current status of the device operating modes with respect to the

Type-C FSM states as defined in the USB Type-C standard specification. This status is

informative only and is not used to trigger any alert.

Table 24. CC_OPERATION_STATUS register

Bit

Field name

Reset

Description

CC_PIN_ATTACHED

0b: CC1 is attached

1b: CC2 is attached

6:5

SINK_POWER_STATE

00b

00b: PowerDefault.SNK (source supplies default USB

current)

01b: Power1.5.SNK (source supplies 1.5 A USB

Type-C current)

10b: Power3.0.SNK (source supplies 3.0 A USB

Type-C current)

11b: do not use

STUSB1600 Datasheet(PDF) 32 Page - STMicroelectronics