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SMSC USB2524 Bedienungsanleitung

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SMSC USB2524 DATASHEET Revision 1.91 (08-22-07)
Datasheet
PRODUCT FEATURES
USB2524
USB MultiSwitch
TM
Hub
USB 2.0 Compatible 4-Port Hub with two upstream
host port connections
— Provides electronic reconfiguration and re-assignment
of any of its 4 downstream ports to either of two
upstream host ports (“on-the-fly”).
— Allows multiple USB hosts to share peripherals and
enables a user to dynamically assign host ownership.
– Embedded Mode - 8 (predefined, OEM
programmable) configurations for port
assignment are selectable via three external
control signals.
– Peripheral Mode - Dedicated select pin for
every downstream port (total of 4), selectable
edge or level triggered in order to support a
wide range of possible switch configurations
and styles.
— Each host has a dedicated Single Transaction
Translator (Single-TT) for supporting FS/LS devices, or
can also operate in Multi-TT mode where each
downstream port has a dedicated Transaction
Translator.
Downstream ports can be disabled or defined as non-
removable
Switching hub can be configured as compound
device for support of ‘embedded’ USB peripherals
Multiple LED modes for maximum implementation
flexibility
— USB Mode - 2 Single-color LEDs for each downstream
port (total of 8 LEDs).
— Host Ownership Mode - 8 Single-Color LEDs indicate
which upstream host each of the downstream ports are
assigned to.
— Host Ownership & Port Speed Mode - 8 Dual-Color
LEDs are used to indicate which upstream host each of
the downstream ports are assigned to, while
simultaneously indicating downstream port connection
speed.
Enhanced configuration options available through
either a Single Serial I
2
C EEPROM, or SMBus Slave
Port
— VID/PID/DID
— Port Configuration
— String Descriptors (each can support a maximum length
of 31 characters)
– Custom Manufacturer String
– Custom Product String
– Custom Serial String
— Assignment of downstream ports to upstream hosts
— Switching mechanism selection
Hardware Strapping options allow for configuration
without an external EEPROM or SMBus Host
— Default VID/PID/DID, allows functionality when
configuration EEPROM is absent
Complete USB Specification 2.0 Compatibility
— Includes USB 2.0 Hi-Speed Transceivers
— High-Speed (480Mbits/s), Full-Speed (12Mbits/s) and
Low-Speed (1.5Mbits/s) compatible
— Full power management with choice of Individual or
Ganged power control
On-Board 24MHz Crystal Driver Circuit or 24 MHz
external clock driver
Internal PLL for 480MHz USB 2.0 Sampling
Internal 1.8V Linear Voltage Regulator
Integrated USB termination and Pull-up/Pull-down
resistors
Internal Short Circuit protection of USB differential
signal pins
1.8 Volt Low Power Core Operation
3.3 Volt I/O with 5V Input Tolerance
56-Pin QFN Lead-free RoHS Compliant Package
Seitenansicht 0
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Inhaltsverzeichnis

Seite 1 - USB MultiSwitch

SMSC USB2524 DATASHEET Revision 1.91 (08-22-07) DatasheetPRODUCT FEATURESUSB2524USB MultiSwitchTM Hub  USB 2.0 Compatible 4-Port Hub with two upstre

Seite 2

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 10 SMSC USB2524DATASHEET Chapter 2 Pin LayoutTable 2.1 USB2524 56-Pin QFN Pin Configuration Ta

Seite 3 - Table of Contents

USB MultiSwitchTM HubDatasheetSMSC USB2524 11 Revision 1.91 (08-22-07)DATASHEET Chapter 3 Pin ConfigurationFigure 3.1 USB2524 QFN-56thermal slug conne

Seite 4

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 12 SMSC USB2524DATASHEET Chapter 4 Switching Hub Pin DescriptionsTable 4.1 Switching Hub Pin D

Seite 5

USB MultiSwitchTM HubDatasheetSMSC USB2524 13 Revision 1.91 (08-22-07)DATASHEET Port [2:1] Green LED&Port Non-Removable strapping optionLED_A[2:1]

Seite 6 - List of Figures

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 14 SMSC USB2524DATASHEET Assign Downstream Ports to Upstream Host PortsPRT_ASSIGN[3:0]I Port As

Seite 7 - List of Tables

USB MultiSwitchTM HubDatasheetSMSC USB2524 15 Revision 1.91 (08-22-07)DATASHEET 1 0 0 Internal Default Configuration PRT_ASSIGN[3:0] = Peripheral Mod

Seite 8 - Chapter 1 General Description

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 16 SMSC USB2524DATASHEET VDD PLL VDDPLL18 +1.8V Filtered analog power for internal PLL.This pin

Seite 9 - 1.1 OEM Selectable Features

SMSC USB2524 17 Revision 1.91 (08-22-07)DATASHEETChapter 5 Switching Hub Block DiagramFigure 5.1 USB2524 Switching Hub Block DiagramUpstreamVBUSUpstr

Seite 10 - Chapter 2 Pin Layout

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 18 SMSC USB2524DATASHEET Chapter 6 Assigning PortsThere are two different (OEM selectable) meth

Seite 11 - Chapter 3 Pin Configuration

USB MultiSwitchTM HubDatasheetSMSC USB2524 19 Revision 1.91 (08-22-07)DATASHEET Note 6.4 X = Don’t Care6.1.2 Peripheral Mode: Level TriggeredIn Periph

Seite 12 - DATASHEET

ORDER NUMBER(S):USB2524-ABZJ for 56-pin QFN Lead-Free RoHS Compliant PackageUSB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 2 SMSC USB2524DATAS

Seite 13

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 20 SMSC USB2524DATASHEET Chapter 7 Configuration Options7.1 Switching Hub Configuration Optio

Seite 14

USB MultiSwitchTM HubDatasheetSMSC USB2524 21 Revision 1.91 (08-22-07)DATASHEET 0Ah R/W Port Disable (Self) PDS 00h0Bh R/W Port Disable (Bus) PDB 00h0

Seite 15 - Ω) capacitor to VSS

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 22 SMSC USB2524DATASHEET 7.1.4.1 Register 00h: Vendor ID (LSB) (Reset = 0x00)7.1.4.2 Register 0

Seite 16

USB MultiSwitchTM HubDatasheetSMSC USB2524 23 Revision 1.91 (08-22-07)DATASHEET 7.1.4.7 Register 06h: CONFIG_BYTE_1 (Reset = 0x00)BIT NUMBER BIT NAME

Seite 17

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 24 SMSC USB2524DATASHEET 7.1.4.8 Register 07h: Configuration Data Byte 2 (Reset = 0x00)7.1.4.9

Seite 18 - Chapter 6 Assigning Ports

USB MultiSwitchTM HubDatasheetSMSC USB2524 25 Revision 1.91 (08-22-07)DATASHEET 7.1.4.10 Register 09h: Non-Removable Device (Reset = 0x00)5 PRT_ASSIGN

Seite 19

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 26 SMSC USB2524DATASHEET 7.1.4.11 Register 0Ah: Port Disable For Self Powered Operation (Reset

Seite 20 - 7.1.2 VBus Detect

USB MultiSwitchTM HubDatasheetSMSC USB2524 27 Revision 1.91 (08-22-07)DATASHEET 7.1.4.14 Register 0Dh: Max Power For Bus Powered Operation (Reset = 0x

Seite 21

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 28 SMSC USB2524DATASHEET 7.1.4.20 Register 13h: Manufacturer String Length (Reset = 0x00)7.1.4.

Seite 22

USB MultiSwitchTM HubDatasheetSMSC USB2524 29 Revision 1.91 (08-22-07)DATASHEET 7.1.4.25 Register 92h-CFh: Serial String (Reset = 0x00)7.1.4.26 Regist

Seite 23

USB MultiSwitchTM HubDatasheetSMSC USB2524 3 Revision 1.91 (08-22-07)DATASHEET Table of ContentsChapter 1 General Description. . . . . . . . . . . . .

Seite 24

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 30 SMSC USB2524DATASHEET 7.1.4.28 Register D2h: Port Assign Interface Configuration 0B (Reset =

Seite 25

USB MultiSwitchTM HubDatasheetSMSC USB2524 31 Revision 1.91 (08-22-07)DATASHEET 7.1.4.32 Register D6h: Port Assign Interface Configuration 1B (Reset =

Seite 26

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 32 SMSC USB2524DATASHEET 7.1.4.36 Register DAh: Port Assign Interface Configuration 2B (Reset =

Seite 27

USB MultiSwitchTM HubDatasheetSMSC USB2524 33 Revision 1.91 (08-22-07)DATASHEET 7.1.4.40 Register DEh: Port Assign Interface Configuration 3B (Reset =

Seite 28

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 34 SMSC USB2524DATASHEET 7.1.4.44 Register E2h: Port Assign Interface Configuration 4B (Reset =

Seite 29

USB MultiSwitchTM HubDatasheetSMSC USB2524 35 Revision 1.91 (08-22-07)DATASHEET 7.1.4.48 Register E6h: Port Assign Interface Configuration 5B (Reset =

Seite 30

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 36 SMSC USB2524DATASHEET 7.1.4.52 Register EAh: Port Assign Interface Configuration 6B (Reset =

Seite 31

USB MultiSwitchTM HubDatasheetSMSC USB2524 37 Revision 1.91 (08-22-07)DATASHEET 7.1.4.56 Register EEh: Port Assign Interface Configuration 7B (Reset =

Seite 32

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 38 SMSC USB2524DATASHEET 7.1.4.60 Register F2h: Port Assignment 3 & 4 (Reset = 0x00)7.1.4.6

Seite 33

USB MultiSwitchTM HubDatasheetSMSC USB2524 39 Revision 1.91 (08-22-07)DATASHEET 7.1.4.64 Register FFh: Status/Command (Reset = 0x00)BIT NUMBER BIT NAM

Seite 34

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 4 SMSC USB2524DATASHEET 7.1.4.28 Register D2h: Port Assign Interface Configuration 0B (Reset =

Seite 35

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 40 SMSC USB2524DATASHEET 7.2 EEPROM InterfaceThe SMSC Hub can be configured via a 2-wire (I2C

Seite 36

USB MultiSwitchTM HubDatasheetSMSC USB2524 41 Revision 1.91 (08-22-07)DATASHEET 7.3 SMBus Slave InterfaceInstead of loading User-Defined Descriptor

Seite 37

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 42 SMSC USB2524DATASHEET A Block Read differs from a block write in that the repeated start con

Seite 38

USB MultiSwitchTM HubDatasheetSMSC USB2524 43 Revision 1.91 (08-22-07)DATASHEET 7.3.7 Bus Reset SequenceThe SMBus Slave Interface resets and returns t

Seite 39

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 44 SMSC USB2524DATASHEET Chapter 8 LED Interface DescriptionThe USB2524 supports 3 different (m

Seite 40 - 7.2 EEPROM Interface

USB MultiSwitchTM HubDatasheetSMSC USB2524 45 Revision 1.91 (08-22-07)DATASHEET 8.3 Host Ownership and Port Speed LED Indication:All 8 LED pins are

Seite 41 - 7.3 SMBus Slave Interface

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 46 SMSC USB2524DATASHEET The assignment is as follows:LED_A1_N = Port 1 Owned By Host ALED_B1_N

Seite 42 - Datasheet

USB MultiSwitchTM HubDatasheetSMSC USB2524 47 Revision 1.91 (08-22-07)DATASHEET Chapter 9 Reset9.1 ResetThere are two different resets that the Hub

Seite 43 - 7.5 Default Configuration

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 48 SMSC USB2524DATASHEET 9.1.1.1 RESET_N for Strapping Option ConfigurationFigure 9.1 Reset_N T

Seite 44 - 8.1 USB Mode:

USB MultiSwitchTM HubDatasheetSMSC USB2524 49 Revision 1.91 (08-22-07)DATASHEET 9.1.1.2 RESET_N for EEPROM ConfigurationFigure 9.2 Reset_N Timing for

Seite 45 - Green LED

USB MultiSwitchTM HubDatasheetSMSC USB2524 5 Revision 1.91 (08-22-07)DATASHEET 7.4 Default Strapping Option . . . . . . . . . . . . . . . . . . . . .

Seite 46

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 50 SMSC USB2524DATASHEET 9.1.1.3 RESET_N for SMBus Slave ConfigurationFigure 9.3 Reset_N Timing

Seite 47 - Chapter 9 Reset

USB MultiSwitchTM HubDatasheetSMSC USB2524 51 Revision 1.91 (08-22-07)DATASHEET  Complies with Section 11.10 of the USB 2.0 Specification for behavio

Seite 48

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 52 SMSC USB2524DATASHEET Chapter 10 XNOR TestPlease contact your SMSC representative for a deta

Seite 49

USB MultiSwitchTM HubDatasheetSMSC USB2524 53 Revision 1.91 (08-22-07)DATASHEET Chapter 11 DC Parameters11.1 Maximum Guaranteed RatingsOperating Tem

Seite 50 - 9.1.2 USB Bus Reset

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 54 SMSC USB2524DATASHEET Input Buffer with Pull-Down (IPD )Low Input LevelHigh Input LevelLow I

Seite 51

USB MultiSwitchTM HubDatasheetSMSC USB2524 55 Revision 1.91 (08-22-07)DATASHEET Note 11.1 Output leakage is measured with the current pins in high imp

Seite 52 - Chapter 10 XNOR Test

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 56 SMSC USB2524DATASHEET Chapter 12 AC Specifications12.1 Oscillator/ClockCrystal: Parallel R

Seite 53 - Chapter 11 DC Parameters

USB MultiSwitchTM HubDatasheetSMSC USB2524 57 Revision 1.91 (08-22-07)DATASHEET Chapter 13 Package OutlineFigure 13.1 USB2524 56-Pin QFN Package Outli

Seite 54

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 6 SMSC USB2524DATASHEET List of FiguresFigure 3.1 USB2524 QFN-56 . . . . . . . . . . . . . . .

Seite 55

USB MultiSwitchTM HubDatasheetSMSC USB2524 7 Revision 1.91 (08-22-07)DATASHEET List of TablesTable 2.1 USB2524 56-Pin QFN Pin Configuration Table. . .

Seite 56 - Chapter 12 AC Specifications

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 8 SMSC USB2524DATASHEET Chapter 1 General DescriptionThe SMSC 4-Port USB 2.0 Switching Hub Cont

Seite 57 - Chapter 13 Package Outline

USB MultiSwitchTM HubDatasheetSMSC USB2524 9 Revision 1.91 (08-22-07)DATASHEET 1.1 OEM Selectable FeaturesA default configuration is available in th

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