USB7002 datasheet(13/56 Pages) MICROCHIP

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 2018-2019 Microchip Technology Inc.

DS00002670C-page 13

USB7002

VBUS Detect

VBUS_DET

This signal detects the state of the upstream bus power

in legacy Type-B upstream implementations.

When designing a detachable hub, this pin must be con-

nected to the VBUS power pin of the upstream USB port

through a resistor divider (50 k

Ω by 100 kΩ) to provide

3.3 V.

For self-powered applications with a permanently

attached host, this pin must be connected to either 3.3 V

or 5.0 V through a resistor divider to provide 3.3 V.

In embedded applications, VBUS_DET may be con-

trolled (toggled) when the host desires to renegotiate a

connection without requiring a full reset of the device.

USB Type-C Connector Control

Downstream

Port 1 Type-C

Voltage Monitor

DP1_VBUS_MON

I/O12

Used to detect Type-C VBUS vSafe5V and vSafe0V

states on Port 1. A potential divider is needed for this pin

(44.2 k

 to 49.9 k , 1.0%).

Downstream

Port 1 Type-C

CC1

DP1_CC1

I/O12

Used for Type-C attach and orientation detection on Port

1. Includes configurable Rp/Ra selection. Connect this

pin directly to the CC1 pin of the respective Type-C con-

nector.

Downstream

Port 1 Type-C

CC2

DP1_CC2

I/O12

Used for Type-C attach and orientation detection on Port

1. Includes configurable Rp/Ra selection. Connect this

pin directly to the CC2 pin of the respective Type-C con-

nector.

Downstream

Port 2 Type-C

Voltage Monitor

DP2_VBUS_MON

I/O12

Used for detect Type-C VBUS vSafe5V and vSafe0V

states on Port 2. A potential divider is needed for this pin

(44.2 k

 to 49.9 k , 1.0%).

Downstream

Port 2 Type-C

CC1

DP2_CC1

I/O12

Used for Type-C attach and orientation detection on Port

2. Includes configurable Rp/Ra selection. Connect this

pin directly to the CC1 pin of the respective Type-C con-

nector.

Downstream

Port 2 Type-C

CC2

DP2_CC2

I/O12

Used for Type-C attach and orientation detection on Port

2. Includes configurable Rp/Ra selection. Connect this

pin directly to the CC2 pin of the respective Type-C con-

nector.

Upstream

Type-C CC1

CC1_UP

I/O12

Used for Type-C attach and orientation detection.

Includes configurable Rp/Ra selection.

Upstream

Type-C CC2

CC2_UP

I/O12

Used for Type-C attach and orientation detection.

Includes configurable Rp/Ra selection.

Upstream

Type-C Voltage

Monitor

VBUS_MON_UP

I/O12

Used to detect Type-C VBUS vSafe5V and vSafe0V

states on the upstream port. A potential divider is

needed for this pin (44.2 k

 to 49.9 k , 1.0%).

TABLE 3-1:

PIN DESCRIPTIONS (CONTINUED)

Name

Symbol

Buffer

Type

Description

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