USB5734T-ISLASHMR datasheet(13/61 Pages) MICROCHIP

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 2015-2016 Microchip Technology Inc.

DS00001854D-page 13

USB5734

PRT_CTL3

(PU)

Port 3 Power Enable / Overcurrent Sense.

As an output, this signal is an active high control signal used to enable

power to the downstream port 3. As an input, this signal indicates an

overcurrent condition from an external current monitor on USB port 3.

PRT_CTL4

(PU)

Port 4 Power Enable / Overcurrent Sense.

As an output, this signal is an active high control signal used to enable

power to the downstream port 4. As an input, this signal indicates an

overcurrent condition from an external current monitor on USB port 4.

GANG_PWR

(PU)

When pulled high enables gang mode. Gang power pin when used in

gang mode.

TABLE 3-6:

SPI/UART PIN DESCRIPTIONS

Num

Pins

Symbol

Buffer

Type

Description

SPI_CE_N

O12

Active low SPI chip enable output.

GPIO7

I/O12

General purpose input/output 7.

CFG_NON_REM

Non-Removable Port Configuration Strap.

This configuration strap is used to configure the number of non-

removable ports. Refer to Section 3.4.3, "Non-Removable Port Con-

figuration (CFG_NON_REM)" for more information.

See Note 3.

SPI_CLK

SPI clock output to the serial ROM, when configured for SPI opera-

tion.

UART_RX

UART receive pin, when configured for UART operation.

GPIO4

I/O6

General purpose input/output 4.

I2C_SLV_CFG0

I2C Slave 0 Configuration Strap.

This configuration strap is used to configure I2C controller 0. Refer to

Section 3.4.1, "SPI/SMBus/I2C/UART Configuration

(I2C_SLV_CFG[1:0])" for additional information.

SPI_DO

SPI data output, when configured for SPI operation.

UART_TX

O12

UART transmit pin, when configured for UART operation.

GPIO5

I/O6

General purpose input/output 5.

I2C_SLV_CFG1

I2C Slave 1 Configuration Strap.

This configuration strap is used to configure I2C controller 1. Refer to

Section 3.4.1, "SPI/SMBus/I2C/UART Configuration

(I2C_SLV_CFG[1:0])" for additional information.

TABLE 3-5:

USB PORT CONTROL PIN DESCRIPTIONS (CONTINUED)

Num

Pins

Symbol

Buffer

Type

Description

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