USB5534B datasheet(4/73 Pages) MICROCHIP

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USB5534B

DS00001681C-page 4

 2012 - 2015 Microchip Technology Inc.

1.0

INTRODUCTION

1.1

Conventions

Within this manual, the following abbreviations and symbols are used to improve readability.

1.2

Overview

The USB5534B hub is a 4-port, low-power, configurable Hub Controller fully compliant with the USB 3.0 Specification

2. The USB5534B supports 5 Gbps SuperSpeed (SS), 480 Mbps Hi-Speed (HS), 12 Mbps Full-Speed (FS) and

1.5 Mbps Low-Speed (LS) USB signaling for complete coverage of all defined USB operating speeds.

All required resistors on the USB ports are integrated into the hub. This includes all series termination resistors and all

required pull-down and pull-up resistors on D+ and D- pins. The over-current sense inputs for the downstream facing

ports have internal pull-up resistors.

The USB5534B hub includes programmable features such as:

• MultiTRAKTM Technology (USB 2.0): implements a dedicated Transaction Translator (TT) for each port. Dedi-

cated TTs help maintain consistent full-speed data throughput regardless of the number of active downstream

connections.

• PortSwap (USB 2.0): allows direct alignment of USB signals (D+/D-) to connectors to avoid uneven trace length

or crossing of the USB differential signals on the PCB.

• PHYBoost (USB 2.0): enables 4 programmable levels of USB signal drive strength in downstream port transceiv-

ers. PHYBoost will also attempt to restore USB signal integrity.

As shown on the Product Identification System page, two USB5534B firmware versions are available: “-5000” and “-

6080”. These options differ in the following ways:

• The Dynamic Charging Port feature and related DYNCPDIS_N pin function are only available on the -6080

device. Refer to Section 5.1.3, "Dynamic Charging Port (6080 Only)" for additional details.

• The TRST/DYNCPDIS_N/UCS_SMBALERT_N pin buffer type is “IPU” in the -6080 device and “I” in the -5000

device. Refer to Pin Information on page 7 for additional details.

• The Global Suspend power consumption has been significantly lowered in the -6080 device. Refer to Section 6.3,

"Power Consumption" for additional details.

Example

Description

BIT

Name of a single bit within a field

FIELD.BIT

Name of a single bit (BIT) in FIELD

x…y

Range from x to y, inclusive

BITS[m:n]

Groups of bits from m to n, inclusive

Pin Name

zzzzb

Binary number (value zzzz)

0xzzz

Hexadecimal number (value zzz)

zzh

Hexadecimal number (value zz)

rsvd

Reserved memory location. Must write 0, read value indeterminate

code

Instruction code, or API function or parameter

Multi Word Name

Used for multiple words that are considered a single unit, such as:

Resource Allocate message, or Connection Label, or Decrement Stack Pointer instruction.

Section Name

Section or Document name.

xDon’t care

<> indicate a Parameter is optional or is only used under some conditions

{,Parameter}

Braces indicate Parameter(s) that repeat one or more times.

[Parameter]

Brackets indicate a nested Parameter. This Parameter is not real and actually decodes into

one or more real parameters.

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