UPD1002 datasheet(19/46 Pages) MICROCHIP

19 / 46 page

 2014 Microchip Technology Inc.

DS00001760B-page 19

UPD1002

Hub Power

Enable

HUB_PWR_EN

This active high signal is driven by either the PCH of a

notebook or a downstream facing port (DFP) on a USB

hub. The hub or USB host may request the port to be

turned off by de-asserting this signal. Upon de-assertion,

if the device is NOT operating as a sink under a PD con-

tract, the device will de-assert the PD_EN signal to turn

off VBUS to the port, which will remain off until HUB_P-

WR_EN asserts again.

Note:

In the case that the port supports insertion

detect or has a micro-AB receptacle (which

must support plug detection), the HUB_P-

WR_EN signal is ignored unless there is a

STD-A or micro-A plug inserted.

Note:

This function is only available in specific

device configurations.

Port Power

Controller

Enable

PPC_PWR_EN

This active high signal is used to enable an attached port

power controller. It should only be used in cases in which

the only source capability offered is 5 V.

Note:

In cases where the port power controller sup-

ports BC or other charging profiles, this single

signal will be enabling both power sourcing as

well as enabling the handshake emulation. BC

handshaking will occur before PD negotiation

and if in a headless/DCP charging mode, the

handshake will persist even after a PD negoti-

ation was completed successfully.

Note:

This function is only available in specific

device configurations.

System Reset

RESET_N

(PU)

System reset. This signal is active low.

Test

TEST

Test signal. This signal is used for internal purposes only

and must be connected to ground through a 1 K resistor

for normal operation.

No Connect

No connect. For proper operation, this signal must not be

connected.

SPI ROM Interface

SPI ROM

Clock

SPI_ROM_CLK

SPI clock output to the serial ROM

SPI ROM Chip

Enable

SPI_ROM_CE_N

This is the active low SPI ROM chip enable output. If the

SPI ROM interface is enabled, this signal should be

pulled up to the SPI ROM Vcc rail.

SPI ROM Data

SPI_ROM_DI

SPI ROM data in

TABLE 2-2:

PIN DESCRIPTIONS (CONTINUED)

Name

Symbol

Buffer

Type

Description

UPD1002 数据表(PDF) 19 Page - Microchip Technology

UPD1002 数据表(HTML) 19 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46

数据表下载

链接网址

UPD1002 数据表(PDF) 19 Page - Microchip Technology

UPD1002 数据表(HTML) 19 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46

数据表 下载

链接网址

数据表下载