USB7056 datasheet(11/55 Pages) MICROCHIP

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DS00002675F-page 11

USB7056

Downstream

Port 1 USB 3.2

Gen 1 RX D+

Orientation B

USB3DN_RXDP1B

I/O-U

Downstream USB Type-C “Orientation B” Super Speed

Receive Data Plus, port 1.

Downstream

Port 1 USB 3.2

Gen 1 RX D- Ori-

entation B

USB3DN_RXDM1B

I/O-U

Downstream USB Type-C “Orientation B” Super Speed

Receive Data Minus, port 1.

Downstream

Ports 2-4 USB

3.2 Gen 1 TX D+

USB3DN_TXDP[2:4]

I/O-U

Downstream Super Speed Transmit Data Plus, ports 2

through 4.

Downstream

Ports 2-4 USB

3.2 Gen 1 TX D-

USB3DN_TXDM[2:4]

I/O-U

Downstream Super Speed Transmit Data Minus, ports 2

through 4.

Downstream

Ports 2-4 USB

3.2 Gen 1 RX D+

USB3DN_RXDP[2:4]

I/O-U

Downstream Super Speed Receive Data Plus, ports 2

through 4.

Downstream

Ports 2-4 USB

3.2 Gen 1 RX D-

USB3DN_RXDM[2:4]

I/O-U

Downstream Super Speed Receive Data Minus, ports 2

through 4.

USB 2.0 Interfaces

Upstream USB

2.0 D+

USB2UP_DP

I/O-U

Upstream USB 2.0 Data Plus (D+).

Upstream USB

2.0 D-

USB2UP_DM

I/O-U

Upstream USB 2.0 Data Minus (D-).

Downstream

Ports 1-6 USB

2.0 D+

USB2DN_DP[1:6]

I/O-U

Downstream USB 2.0 Ports 1-6 Data Plus (D+).

Downstream

Ports 1-6 USB

2.0 D-

USB2DN_DM[1:6]

I/O-U

Downstream USB 2.0 Ports 1-6 Data Minus (D-)

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.

TABLE 3-1:

PIN DESCRIPTIONS (CONTINUED)

Name

Symbol

Buffer

Type

Description

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