STUSB1600 datasheet(33/69 Pages) STMICROELECTRONICS

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STUSB1600

I2C register map

The reset value of TYPEC_FSM_STATE bits is:

•

00h when the device is operating in sink power role (Unattached.SNK)

•

08h when device is operating in source power role (Unattached.SRC)

The CC_PIN_ATTACHED bit indicates which CC pin is connected to the CC line. Its value is

consistent with the logic level of the A_B_SIDE output pin providing cable orientation.

The SINK_POWER_STATE bits indicate the current level advertised by the source that the

sink can consume when the device is operating in sink power role.

The TYPEC_FSM_STATE bits indicate the current state of the Type-C FSM corresponding

to the power mode defined in the CC_POWER_MODE_CTRL register.

4:0

TYPEC_FSM_STATE

00h or

08h

00h: Unattached.SNK

01h: AttachWait.SNK

02h: Attached.SNK

03h: DebugAccessory.SNK

04h: reserved

05h: reserved

06h: reserved

07h: TryWait.SNK

08h: Unattached.SRC

09h: AttachWait.SRC

0Ah: Attached.SRC

0Bh: reserved

0Ch: Try.SRC

0Dh: Unattached.Accessory

0Eh: AttachWait.Accessory

0Fh: AudioAccessory

10h: UnorientedDebugAccessory.SRC

11h: reserved

12h: reserved

13h: ErrorRecovery

14h: TryDebounce.SNK (Intermediate state towards

Try.SNK state)

15h: Try.SNK

16h: reserved

17h: TryWait.SRC

18h: UnattachedWait.SRC (VCONN intermediate

discharge state)

19h: OrientedDebugAccessory.SRC

1Ah: reserved

1Bh: reserved

1Ch: reserved

1Dh: reserved

1Eh: reserved

1Fh: reserved

Table 24. CC_OPERATION_STATUS register (continued)

Bit

Field name

Reset

Description

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