USB5807C datasheet(12/56 Pages) MICROCHIP

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USB5807C

DS00003182B-page 12

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2019 - 2021 Microchip Technology Inc.

TABLE 3-4:

PORT CONTROL PIN DESCRIPTIONS

Name

Symbol

Buffer

Type

Description

Port 7

Power Enable /

Overcurrent

Sense

PRT_CTL7

I/OD12

(PU)

Port 7 Power Enable / Overcurrent Sense.

When the downstream port is enabled, this pin is set as

an input with an internal pull-up resistor applied. The

internal pull-up enables power to the downstream port

while the pin monitors for an active low overcurrent signal

assertion from an external current monitor on USB port 7.

This pin will change to an output and be driven low when

the port is disabled by configuration or by the host con-

trol.

Port 6

Power Enable /

Overcurrent

Sense

PRT_CTL6

I/OD12

(PU)

Port 6 Power Enable / Overcurrent Sense.

When the downstream port is enabled, this pin is set as

an input with an internal pull-up resistor applied. The

internal pull-up enables power to the downstream port

while the pin monitors for an active low overcurrent signal

assertion from an external current monitor on USB port 6.

This pin will change to an output and be driven low when

the port is disabled by configuration or by the host con-

trol.

Port 5

Power Enable /

Overcurrent

Sense

PRT_CTL5

I/OD12

(PU)

Port 5 Power Enable / Overcurrent Sense.

When the downstream port is enabled, this pin is set as

an input with an internal pull-up resistor applied. The

internal pull-up enables power to the downstream port

while the pin monitors for an active low overcurrent signal

assertion from an external current monitor on USB port 5.

This pin will change to an output and be driven low when

the port is disabled by configuration or by the host con-

trol.

Port 4

Power Enable /

Overcurrent

Sense

PRT_CTL4

I/OD12

(PU)

Port 4 Power Enable / Overcurrent Sense.

When the downstream port is enabled, this pin is set as

an input with an internal pull-up resistor applied. The

internal pull-up enables power to the downstream port

while the pin monitors for an active low overcurrent signal

assertion from an external current monitor on USB port 4.

This pin will change to an output and be driven low when

the port is disabled by configuration or by the host con-

trol.

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