USB2534 datasheet(17/52 Pages) MICROCHIP

17 / 52 page

USB 2.0 Hi-Speed 4-Port Hub Controller

Datasheet

 2014 Microchip Technology Inc.

DS00001713A-page 17

High Speed

Indicator

HS_IND

Indicates a high speed connection on the

upstream port. The active state of the LED will be

determined as follows:

If CFG_SEL1 = 0, HS_IND is active high.

If CFG_SEL1 = 1, HS_IND is active low.

Asserted = hub is connected at high speed

Negated = Hub is connected at full speed

Configuration

Select 1

Configuration

Strap

CFG_SEL1

This strap is used in conjunction with CFG_SEL0

to set the hub configuration method. Refer to

Section 6.3.2, "Configuration Select

(CFG_SEL[1:0])," on page 30 for additional

information.

See Note 3.4 for more information on

configuration straps.

Port 1 Power

Output

PRTPWR1

Enables power to a downstream USB device

attached to Port 1.

0 = Power disabled on downstream Port 1

1 = Power enabled on downstream Port 1

Port 1 Control

PRTCTL1

OD8/IS

(PU)

When configured as PRTCTL1, this pin functions

as both the Port 1 power enable output

(PRTPWR1) and the Port 1 over-current sense

input (OCS1_N). Refer to the PRTPWR1 and

OCS1_N descriptions for additional information.

Port 1 Battery

Charging

Configuration

Strap

BC_EN1

This strap is used to indicate support of the

battery charging protocol on Port 1. Enabling

battery charging support allows a device on the

port to draw currents per the USB battery

charging specification.

0 = Battery charging is not supported on Port 1

1 = Battery charging is supported on Port 1

See Note 3.4 for more information on

configuration straps.

Table 3.1 Pin Descriptions (continued)

NUM PINS

NAME

SYMBOL

BUFFER

TYPE

DESCRIPTION

USB2534 датащи(PDF) 17 Page - Microchip Technology

USB2534 датащи(HTML) 17 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 47 48 49 50 51 52

датащи скачать

ссылки URL