STUSB1600 datasheet(23/69 Pages) STMICROELECTRONICS

tên linh kiện	STUSB1600

Giải thích chi tiết về linh kiện	Power hubs and docking stations

PDF	69 Pages

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nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

Trang chủ	http://www.st.com

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DocID028937 Rev 1

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STUSB1600

Features description

•

In source power role, a debug accessory device is detected when both the CC1 and

CC2 pins are pulled down to ground by an Rd resistor from the connected device. The

orientation detection is performed in two steps as described in the table below. The

DEBUG2 pin is asserted to advertise the DTS detection and the A_B_SIDE pin

indicates the orientation of the connection. The orientation detection is advertised

through the TYPEC_FSM_STATE bits of the I2C register CC_OPERATION_STATUS

(see Section 5.1: Register description).

Table 11. Orientation detection in source power role

CC1 pin

(CC2 pin)

CC2 pin

(CC1 pin)

Detection

process

A_B_SIDE pin

CC1/CC2

(CC2/CC1)

Orientation detection state

TYPEC_FSM_STATE bits value

1Rd

1st step: debug

accessory mode

detected

HiZ (HiZ)

UnorientedDebugAccessory.SRC

2Rd

≤ Ra

2nd step:

orientation

detected (DTS

presents a

resistance to GND

with a value ≤ Ra

on its CC2 pin)

HiZ (0)

OrientedDebugAccessory.SRC

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