USB5816CTSLASHKD datasheet(13/66 Pages) MICROCHIP

13 / 66 page

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2016-2021 Microchip Technology Inc.

DS00002238E-page 13

USB5816

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.

Port 3

Power Enable /

Overcurrent

Sense

PRT_CTL3

I/OD12

(PU)

Port 3 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 3.

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 2

Power Enable /

Overcurrent

Sense

PRT_CTL2

I/OD12

(PU)

Port 2 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 2.

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

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

trol.

TABLE 3-4:

PORT CONTROL PIN DESCRIPTIONS (CONTINUED)

Name

Symbol

Buffer

Type

Description

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