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SMSC USB2524 manuel d'utilisation

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Les règles imposent au revendeur l'obligation de fournir à l'acheteur, avec des marchandises, le manuel d’utilisation SMSC USB2524. Le manque du manuel d’utilisation ou les informations incorrectes fournies au consommateur sont à la base d'une plainte pour non-conformité du dispositif avec le contrat. Conformément à la loi, l’inclusion du manuel d’utilisation sous une forme autre que le papier est autorisée, ce qui est souvent utilisé récemment, en incluant la forme graphique ou électronique du manuel SMSC USB2524 ou les vidéos d'instruction pour les utilisateurs. La condition est son caractère lisible et compréhensible.

Qu'est ce que le manuel d’utilisation?

Le mot vient du latin "Instructio", à savoir organiser. Ainsi, le manuel d’utilisation SMSC USB2524 décrit les étapes de la procédure. Le but du manuel d’utilisation est d’instruire, de faciliter le démarrage, l'utilisation de l'équipement ou l'exécution des actions spécifiques. Le manuel d’utilisation est une collection d'informations sur l'objet/service, une indice.

Malheureusement, peu d'utilisateurs prennent le temps de lire le manuel d’utilisation, et un bon manuel permet non seulement d’apprendre à connaître un certain nombre de fonctionnalités supplémentaires du dispositif acheté, mais aussi éviter la majorité des défaillances.

Donc, ce qui devrait contenir le manuel parfait?

Tout d'abord, le manuel d’utilisation SMSC USB2524 devrait contenir:
- informations sur les caractéristiques techniques du dispositif SMSC USB2524
- nom du fabricant et année de fabrication SMSC USB2524
- instructions d'utilisation, de réglage et d’entretien de l'équipement SMSC USB2524
- signes de sécurité et attestations confirmant la conformité avec les normes pertinentes

Pourquoi nous ne lisons pas les manuels d’utilisation?

Habituellement, cela est dû au manque de temps et de certitude quant à la fonctionnalité spécifique de l'équipement acheté. Malheureusement, la connexion et le démarrage SMSC USB2524 ne suffisent pas. Le manuel d’utilisation contient un certain nombre de lignes directrices concernant les fonctionnalités spécifiques, la sécurité, les méthodes d'entretien (même les moyens qui doivent être utilisés), les défauts possibles SMSC USB2524 et les moyens de résoudre des problèmes communs lors de l'utilisation. Enfin, le manuel contient les coordonnées du service SMSC en l'absence de l'efficacité des solutions proposées. Actuellement, les manuels d’utilisation sous la forme d'animations intéressantes et de vidéos pédagogiques qui sont meilleurs que la brochure, sont très populaires. Ce type de manuel permet à l'utilisateur de voir toute la vidéo d'instruction sans sauter les spécifications et les descriptions techniques compliquées SMSC USB2524, comme c’est le cas pour la version papier.

Pourquoi lire le manuel d’utilisation?

Tout d'abord, il contient la réponse sur la structure, les possibilités du dispositif SMSC USB2524, l'utilisation de divers accessoires et une gamme d'informations pour profiter pleinement de toutes les fonctionnalités et commodités.

Après un achat réussi de l’équipement/dispositif, prenez un moment pour vous familiariser avec toutes les parties du manuel d'utilisation SMSC USB2524. À l'heure actuelle, ils sont soigneusement préparés et traduits pour qu'ils soient non seulement compréhensibles pour les utilisateurs, mais pour qu’ils remplissent leur fonction de base de l'information et d’aide.

Table des matières du manuel d’utilisation

  • Page 1

    SMSC USB2524 DA T ASHEET Revision 1.91 ( 08-22-07) Datasheet PRODUCT FEA TURES 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 multipl[...]

  • Page 2

    ORDER NUMBER(S): USB2524-ABZJ for 5 6-pin QFN Lead-Free RoHS Co mpliant Packag e USB MultiSwi tch TM Hub Datasheet Revision 1.91 (08-22-07) 2 SMSC USB2524 DA T ASHEET 80 ARKA Y DRIVE, HAUPP A UGE, NY 1 1788 (631) 435-6000 , F AX (63 1) 273-3123 Copyright © 20 07 SMSC or it s subsidiaries. A ll rights r eserved. Circuit diagrams and other informa t[...]

  • Page 3

    USB MultiSwitch TM Hub Datasheet SMSC USB2524 3 Revision 1.91 (08-22-07) DA T ASHEET T able of Content s Chapter 1 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 1.1 OEM Selectable Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 4

    USB MultiSwi tch TM Hub Datasheet Revision 1.91 (08-22-07) 4 SMSC USB2524 DA T ASHEET 7.1.4.28 Register D2h: Port Assign Interface Configuration 0B (Reset = 0x00) . . . . . . . . . . . . . . 30 7.1.4.29 Register D3h: Port Assign Interface Configuration 0C (Reset = 0x 00) . . . . . . . . . . . . . . 30 7.1.4.30 Register D4h: Port Assign Interface Co[...]

  • Page 5

    USB MultiSwitch TM Hub Datasheet SMSC USB2524 5 Revision 1.91 (08-22-07) DA T ASHEET 7.4 Default Strapping Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 7.5 Default Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 6

    USB MultiSwi tch TM Hub Datasheet Revision 1.91 (08-22-07) 6 SMSC USB2524 DA T ASHEET List of Figures Figure 3.1 USB2524 QFN-56 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Figure 5.1 USB2524 Switching Hub B lock Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 7

    USB MultiSwitch TM Hub Datasheet SMSC USB2524 7 Revision 1.91 (08-22-07) DA T ASHEET List of T ables Table 2.1 USB2524 56-Pin QFN Pin Configuration Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Table 4.1 Switching H ub Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 8

    USB MultiSwi tch TM Hub Datasheet Revision 1.91 (08-22-07) 8 SMSC USB2524 DA T ASHEET Chapter 1 General Description The SMSC 4-Port USB 2.0 Switching Hub Controlle r acts as two independently co ntrollable USB 2.0 Hubs in a single package with the ability to elec tronically reassign and reconfigure any of its 4 downstream ports to either of it s tw[...]

  • Page 9

    USB MultiSwitch TM Hub Datasheet SMSC USB2524 9 Revision 1.91 (08-22-07) DA T ASHEET 1.1 OEM Select able Features A default configuration is avai lable in the USB2524 followi ng a reset. This configuration may be sufficient for some applications. S trapping option pins make it possible to modify a limited sub-set of the configuration optio ns. The [...]

  • Page 10

    USB MultiSwi tch TM Hub Datasheet Revision 1.91 (08-22-07) 10 SMSC USB2524 DA T ASHEET Chapter 2 Pin Layout T able 2.1 USB2524 56-Pin QFN Pin Configu ration T able UPSTREAM USB 2.0 INTERF ACES (6 PINS) USBUP_DP1 USBUP_DM1 USBUP_DP2 USBUP_DM2 VBUS_DET1 VBUS_DET2 DOWNSTREAM 4-PORT USB 2.0 INTERF ACE (30 PINS) USBDN_DP1 USBDN_DM1 USBDN_DP2 OCS1_N USBD[...]

  • Page 11

    USB MultiSwitch TM Hub Datasheet SMSC USB2524 1 1 Revision 1.91 (08-22-07) DA T ASHEET Chapter 3 Pin Configuration Figure 3.1 USB2 524 QFN- 56 thermal slug connect s to VSS 41 PRT_AS SIGN0 40 PRT_AS SIGN1 39 PRT_AS SIGN2 38 PRT_AS SIGN3 37 VDD33 36 SELF _PWR 35 CFG_ SEL2 34 CFG_ SEL1 32 SDA/SMBDATA 31 LED_B 1_N 29 LED_B 2_N 30 LED_A1_N/NON_REM0 33 [...]

  • Page 12

    USB MultiSwi tch TM Hub Datasheet Revision 1.91 (08-22-07) 12 SMSC USB2524 DA T ASHEET Chapter 4 Switching Hub Pin Descriptions T able 4.1 Switching Hub P in Descriptions NAME SYMBOL T YPE FUNCTION UPSTREAM USB 2.0 IN TERF ACE USB Bus Data USBUP_DP[2:1] USBUP_DM[2:1] IO-U These pins connect to the upstream USB bus dat a signals. Detect Upstream VBU[...]

  • Page 13

    USB MultiSwitch TM Hub Datasheet SMSC USB2524 13 Revision 1.91 (08-22-07) DA T ASHEET Port [2:1] Green LED & Port Non- Removable strapping option LED_A[2:1]_N/ NON_REM[1:0] I/O12 Green indi cator LED for ports 2 and 1. Wil l be active low when LED support is ena bled via EEPROM or SMBus. If the hub is configured by th e internal defaul t config[...]

  • Page 14

    USB MultiSwi tch TM Hub Datasheet Revision 1.91 (08-22-07) 14 SMSC USB2524 DA T ASHEET Assign Downstream Ports to Ups tream Host Ports PRT_ASSIGN [3:0] I Port Assign Interface: Operat es in eith er Embedded mode, or Periphera l mode. See Ch apter 6, Assigning Ports for additional details. SERIAL PORT INTERF ACE Serial Data/SMB Data SDA/SMBDA T A IO[...]

  • Page 15

    USB MultiSwitch TM Hub Datasheet SMSC USB2524 15 Revision 1.91 (08-22-07) DA T ASHEET 1 0 0 Internal Default Configurati on  PRT_ASSIGN[3:0] = Periphera l Mode (Edge T riggered)  LED Mode = Host Ownership Mode  St r a p  options on pins LED_A[4:1]_N a re enabled.  Supports unassigned Ports 1 0 1 Internal Default Configurati on  PR[...]

  • Page 16

    USB MultiSwi tch TM Hub Datasheet Revision 1.91 (08-22-07) 16 SMSC USB2524 DA T ASHEET VDD PLL VDDPLL 18 +1.8V Filtered analog powe r for internal PLL. This pin m ust have a 4.7 μ F (or greater) ±20% (ESR <0.1 Ω) capacitor to VSS VDD Analog I/O VDDA33 +3.3V Filtered analog PHY power, shared between adjacent ports. VSS VSS Ground NC NC No Conn[...]

  • Page 17

    SMSC USB2524 17 Revision 1.91 (08-22-07) DA T ASHEET Chapter 5 Switching Hub Block Diagram Figure 5.1 USB2524 Switch ing Hub Block Diagram U pst ream V BUS U pst r eam PHY U pst ream USB Dat a R epeat er Cont r ol l er SI E Ser i al I nter face Sw i t chi ng Logi c D ow n st ream PHY #1 Por t #1 OC S en s e Sw i t ch D ri ver LE D Dr i ve r s D ow [...]

  • Page 18

    USB MultiSwi tch TM Hub Datasheet Revision 1.91 (08-22-07) 18 SMSC USB2524 DA T ASHEET Chapter 6 Assigning Port s There are two different (OEM selectable) methods of assigning downstream ports to upstream hosts. One method is with the PRT_ASSIGN [3:0] interface through the us e of mechanical switches or by electrical control of the pins vi a an ext[...]

  • Page 19

    USB MultiSwitch TM Hub Datasheet SMSC USB2524 19 Revision 1.91 (08-22-07) DA T ASHEET Note 6.4 X = Don’t Care 6.1.2 Peripheral Mode: Level T riggered In Peripheral Mode (Le vel T riggered), each pin di re ctly sw itches a downstream port between the two upstream host ports. Each pin on the PRT_ASSIGN in terface is only capable of two electrical s[...]

  • Page 20

    USB MultiSwi tch TM Hub Datasheet Revision 1.91 (08-22-07) 20 SMSC USB2524 DA T ASHEET Chapter 7 Configuration Options 7.1 Switching Hub Configuration Options The SMSC Hub supports a large number of featur es (some are mutually exclusive), and must be configured i n order to cor rectly functi on when attached to a U SB host cont roller . Th ere are[...]

  • Page 21

    USB MultiSwitch TM Hub Datasheet SMSC USB2524 21 Revision 1.91 (08-22-07) DA T ASHEET 0Ah R/W Port Disable (Self) PDS 00h 0Bh R/W Port Disable (Bus) PDB 00h 0Ch R/W Max Power (Self) MAXPS 01h 0Dh R/W Max Power (Bus) MAXPB 64h 0Eh R/W Hub Controller Max Current (Self) HCMCS 01h 0Fh R/W Hub Controller Max Current (bus) HCMCB 64h 10h R/W Power-on T im[...]

  • Page 22

    USB MultiSwi tch TM Hub Datasheet Revision 1.91 (08-22-07) 22 SMSC USB2524 DA T ASHEET 7.1.4.1 Register 00h: V endor ID (LSB) (Reset = 0x00) 7.1.4.2 Register 01h: V endor ID (MSB) (Reset = 0x00) 7.1.4.3 Register 02h: Product ID (LSB) (Reset = 0x00) 7.1.4.4 Register 03h: Product ID (MSB) (Reset = 0x00) 7.1.4.5 Register 04h: Device ID (LSB) (Reset = [...]

  • Page 23

    USB MultiSwitch TM Hub Datasheet SMSC USB2524 23 Revision 1.91 (08-22-07) DA T ASHEET 7.1.4.7 Register 06h: CONFIG_BYTE_1 (Reset = 0x00) BIT NUMBER BIT NAME DESCRIPTION 7 SELF_BUS_PWR Self or Bus Power: Selects between Self- and Bus-Powered opera tion. The Hub is either Self-Powered (draws less than 2mA of upstream bus power) or Bus-Powered (limite[...]

  • Page 24

    USB MultiSwi tch TM Hub Datasheet Revision 1.91 (08-22-07) 24 SMSC USB2524 DA T ASHEET 7.1.4.8 Register 07h: Configu ration Dat a Byte 2 (Reset = 0x00) 7.1.4.9 Register 08h: Configu ration Dat a Byte 3 (Reset = 0x00) BIT NUMBER BIT NAME DESCRIPTION 7 DYNAMIC Dynamic Power Enable: Controls th e abili ty of the Hub to automatically change from Self-P[...]

  • Page 25

    USB MultiSwitch TM Hub Datasheet SMSC USB2524 25 Revision 1.91 (08-22-07) DA T ASHEET 7.1.4.10 Register 09h: Non- Removab le Device (R eset = 0x00) 5 PRT_ASSIGN_CFG Port Assi gnment Configuration: ‘0’ = Port assignment is controlled by ha rdware interface pins ‘1’ = Port assignment is controlled by: PORT_ASSIGN_12 PORT_ASSIGN_34 PORT_ASSIGN[...]

  • Page 26

    USB MultiSwi tch TM Hub Datasheet Revision 1.91 (08-22-07) 26 SMSC USB2524 DA T ASHEET 7.1.4.1 1 Register 0Ah: Port Disable For Self Powe red Operation (Reset = 0x00) 7.1.4.12 Register 0Bh: Port Disable For Bus Power ed Operation (Reset = 0x00 ) 7.1.4.13 Register 0Ch: Max Power For Se lf Power ed Operation (Re set = 0x00) BIT NUMBER BIT NAME DESCRI[...]

  • Page 27

    USB MultiSwitch TM Hub Datasheet SMSC USB2524 27 Revision 1.91 (08-22-07) DA T ASHEET 7.1.4.14 Register 0Dh: Max Power For Bus Powered Operation (Re set = 0x00) 7.1.4.15 Register 0Eh: Hub Controller Max Curr ent For Self Powered Opera tion (Reset = 0x00) 7.1.4.16 Register 0Fh: Hub Controller Max Curre nt For Bus Powered Operation (Reset = 0x 00) 7.[...]

  • Page 28

    USB MultiSwi tch TM Hub Datasheet Revision 1.91 (08-22-07) 28 SMSC USB2524 DA T ASHEET 7.1.4.20 Register 13h: Manufact urer String Length (Reset = 0x00) 7.1.4.21 Register 14h: Product String Leng th (Reset = 0x00) 7.1.4.22 Register 15h: Serial S tring Length (Reset = 0x00) 7.1.4.23 Register 16h-53h: Manufacturer S tring (Reset = 0x00) 7.1.4.24 Regi[...]

  • Page 29

    USB MultiSwitch TM Hub Datasheet SMSC USB2524 29 Revision 1.91 (08-22-07) DA T ASHEET 7.1.4.25 Register 92h-CFh: Se rial String (Re set = 0x00) 7.1.4.26 Register D0h: Port Interface Delay Time r (Reset = 0x00) 7.1.4.27 Register D1h: Port Assign In terface Configurat ion 0A (Reset = 0x00) BIT NUMBER BIT NAME DESCRIPTION 7:0 SER_STR Serial S tring, U[...]

  • Page 30

    USB MultiSwi tch TM Hub Datasheet Revision 1.91 (08-22-07) 30 SMSC USB2524 DA T ASHEET 7.1.4.28 Register D2h: Port Assign In terface Configurat ion 0B (Reset = 0x00) 7.1.4.29 Register D3h: Port Assign In terface Configurat ion 0C (Reset = 0x00) 7.1.4.30 Register D4h: Port Assign In terface Configurat ion 0D (Reset = 0x00) 7.1.4.31 Register D5h: Por[...]

  • Page 31

    USB MultiSwitch TM Hub Datasheet SMSC USB2524 31 Revision 1.91 (08-22-07) DA T ASHEET 7.1.4.32 Register D6h: Port Assign In terface Configurat ion 1B (Reset = 0x00) 7.1.4.33 Register D7h: Port Assign In terface Configurat ion 1C (Reset = 0x00) 7.1.4.34 Register D8h: Port Assign In terface Configurat ion 1D (Reset = 0x00) 7.1.4.35 Register D9h: Port[...]

  • Page 32

    USB MultiSwi tch TM Hub Datasheet Revision 1.91 (08-22-07) 32 SMSC USB2524 DA T ASHEET 7.1.4.36 Register DAh: Port Assign Inte r face Configuration 2B (Reset = 0x00) 7.1.4.37 Register DBh: Port Assign Inte r face Configuration 2C (Reset = 0x00) 7.1.4.38 Register DCh: Port Assign Inte r face Configuration 2D (Reset = 0x00) 7.1.4.39 Register DDh: Por[...]

  • Page 33

    USB MultiSwitch TM Hub Datasheet SMSC USB2524 33 Revision 1.91 (08-22-07) DA T ASHEET 7.1.4.40 Register DEh: Port Assign Inte rface Configura tion 3B (Reset = 0x00) 7.1.4.41 Register DFh: Port Assign Inte rface Configuration 3C (Reset = 0x00) 7.1.4.42 Register E0h: Port Assign In terface Configuration 3D (Res et = 0x00) 7.1.4.43 Register E1h: Port [...]

  • Page 34

    USB MultiSwi tch TM Hub Datasheet Revision 1.91 (08-22-07) 34 SMSC USB2524 DA T ASHEET 7.1.4.44 Register E2h: Port Assign In terface Configuration 4B (Res et = 0x00) 7.1.4.45 Register E3h: Port Assign In terface Configuration 4C (Res et = 0x00) 7.1.4.46 Register E4h: Port Assign In terface Configuration 4D (Res et = 0x00) 7.1.4.47 Register E5h: Por[...]

  • Page 35

    USB MultiSwitch TM Hub Datasheet SMSC USB2524 35 Revision 1.91 (08-22-07) DA T ASHEET 7.1.4.48 Register E6h: Port Assign In terface Configuration 5B (Res et = 0x00) 7.1.4.49 Register E7h: Port Assign In terface Configuration 5C (Res et = 0x00) 7.1.4.50 Register E8h: Port Assign In terface Configuration 5D (Res et = 0x00) 7.1.4.51 Register E9h: Port[...]

  • Page 36

    USB MultiSwi tch TM Hub Datasheet Revision 1.91 (08-22-07) 36 SMSC USB2524 DA T ASHEET 7.1.4.52 Register EAh: Port Assign Inte rface Configura tion 6B (Reset = 0x00) 7.1.4.53 Register EBh: Port Assign Inte rface Configura tion 6C (Reset = 0x00) 7.1.4.54 Register ECh: Port Assign Inte rface Configura tion 6D (Reset = 0x00) 7.1.4.55 Register EDh: Por[...]

  • Page 37

    USB MultiSwitch TM Hub Datasheet SMSC USB2524 37 Revision 1.91 (08-22-07) DA T ASHEET 7.1.4.56 Register EEh: Port Assign Interf ace Configuratio n 7B (Res et = 0x00) 7.1.4.57 Register EFh: Port Assign In terface Configurat ion 7C (Reset = 0x00) 7.1.4.58 Register F0h: Port Assign Inte r face Configuration 7D (Reset = 0x00) 7.1.4.59 Register F1h: Por[...]

  • Page 38

    USB MultiSwi tch TM Hub Datasheet Revision 1.91 (08-22-07) 38 SMSC USB2524 DA T ASHEET 7.1.4.60 Register F2h: Port Assignment 3 & 4 (Reset = 0x00) 7.1.4.61 Register F3h: Port Assignment 5 & 6 (Reset = 0x00) 7.1.4.62 Register F4h: Port Assignment 7 (Reset = 0x 00) 7.1.4.63 Register F5h: Port Lockout (Reset = 0x00) BIT NUMBER BIT NAME DESCRIP[...]

  • Page 39

    USB MultiSwitch TM Hub Datasheet SMSC USB2524 39 Revision 1.91 (08-22-07) DA T ASHEET 7.1.4.64 Register FFh: St atus/Command (Reset = 0x00) BIT NUMBER BIT NAME DESCRIPTION 7:3 Reserved Reserved. {Note: Software must never write a ‘1’ to these bits} 2 INTF_PW_DN SMBus Interface Power Down 0 = Interface is active 1 = Interface powe r down after A[...]

  • Page 40

    USB MultiSwi tch TM Hub Datasheet Revision 1.91 (08-22-07) 40 SMSC USB2524 DA T ASHEET 7.2 EEPROM Interface The SMSC Hub can be configured via a 2-wire (I 2 C) EEPROM (256x8). (p lease see T able 4.2, "SMBus or EEPROM Interface Behavior" for specific details on how to enable configuration via an I 2 C EEPROM). The Internal state-machine w[...]

  • Page 41

    USB MultiSwitch TM Hub Datasheet SMSC USB2524 41 Revision 1.91 (08-22-07) DA T ASHEET 7.3 SMBus Slave Interface Instead of loading User-Defi ned Descriptor data from an external EEPROM, the SMSC Hub can be configured to receive a code load from an externa l processor via an SMBus interface. The SMBus interface shares the same pins as the EEPROM int[...]

  • Page 42

    USB MultiSwi tch TM Hub Datasheet Revision 1.91 (08-22-07) 42 SMSC USB2524 DA T ASHEET A Block Read differs from a block write in that th e repeated start conditio n exists to satisfy the I 2 C specification's requirement for a change in the transfer direction. Figure 7.2 SMBus Block Read 7.3.2 I nvalid Protocol Response Behavior Registers tha[...]

  • Page 43

    USB MultiSwitch TM Hub Datasheet SMSC USB2524 43 Revision 1.91 (08-22-07) DA T ASHEET 7.3.7 B us Reset Sequence The SMBus Slave Interface resets and returns to the idle state upon a ST ART field followed immediately by a STOP field. 7.3.8 S MBus Alert Response Address The SMBALERT# signal is not supported by the Hub. 7.3.8.1 Undefined Registers Rea[...]

  • Page 44

    USB MultiSwitch TM Hub Datasheet Revision 1.91 (08-22-07) 44 SMSC USB2524 DA T ASHEET Chapter 8 LED Interface Description The USB2524 supports 3 dif ferent (mutually excl usive) LED modes. USB Mode provides 8 LEDS, which conform to the USB 2.0 specification functi onal requirements for Green and Amber LED’s. Basic Host Owner LED Indication mode u[...]

  • Page 45

    USB MultiSwitch TM Hub Datasheet SMSC USB2524 45 Revision 1.91 (08-22-07) DA T ASHEET 8.3 Host Ownership and Po rt S peed LED Indication: All 8 LED pins are used in this mod e in conjunction with 8 Dual-color LEDs (each LED pair in a single package) to indicate which upstream Host owns each specific downstream Port, as well as the speed that the do[...]

  • Page 46

    USB MultiSwitch TM Hub Datasheet Revision 1.91 (08-22-07) 46 SMSC USB2524 DA T ASHEET The assignment is as follow s: LED_A1_N = Port 1 Owned By Host A LED_B1_N = Port 1 Owned By Host B LED_A2_N = Port 2 Owned By Host A LED_B2_N = Port 2 Owned By Host B LED_A3_N = Port 3 Owned By Host A LED_B3_N = Port 3 Owned By Host B LED_A4_N = Port 4 Owned By Ho[...]

  • Page 47

    USB MultiSwitch TM Hub Datasheet SMSC USB2524 47 Revision 1.91 (08-22-07) DA T ASHEET Chapter 9 Reset 9.1 Reset There are two different resets th at the Hub experiences. One is a hardware reset (via the RESET_N pin) and the second is a USB Bus Reset. 9.1.1 E xternal Hardware RESET_N A valid hardware reset is defined as, assertion of RESET_N for a m[...]

  • Page 48

    USB MultiSwitch TM Hub Datasheet Revision 1.91 (08-22-07) 48 SMSC USB2524 DA T ASHEET 9.1.1.1 RESET_N for Strappin g Option Configuration Figure 9.1 Reset_N Timing fo r Default/Stra p Option Mode Note 9.1 When in Bus-Powered mode, the H ub and its associated circ uitry must not consume more than 100mA from the upstream US B powe r source during t1+[...]

  • Page 49

    USB MultiSwitch TM Hub Datasheet SMSC USB2524 49 Revision 1.91 (08-22-07) DA T ASHEET 9.1.1.2 RESET_N for EEPROM Configuration Figure 9.2 Reset_N Ti ming for EEPROM Mode Note 9.2 When in Bus-Powered mode, the H ub and its associated circ uitry must not consume more than 100mA from the upstream USB power source during t4+t5+t6+t7. T able 9.2 Reset_N[...]

  • Page 50

    USB MultiSwitch TM Hub Datasheet Revision 1.91 (08-22-07) 50 SMSC USB2524 DA T ASHEET 9.1.1.3 RESET_N for SMBu s Slave Configuration Figure 9.3 Reset_N Timing for SMBus Mode Note: For Bus-Powered configura tions, the Hub and its associated ci rcuitry will consume more than 100mA from the upstream USB power source during t2+t3+t4+t5+t6+t7. Note 9.3 [...]

  • Page 51

    USB MultiSwitch TM Hub Datasheet SMSC USB2524 51 Revision 1.91 (08-22-07) DA T ASHEET  Complies with Section 1 1.10 of the USB 2.0 S pecific ation for behavior after completion of the reset sequence. The Host then configures the Hub and the Hub’s do wnstream port devices in acco rdance with the USB S pecification.[...]

  • Page 52

    USB MultiSwitch TM Hub Datasheet Revision 1.91 (08-22-07) 52 SMSC USB2524 DA T ASHEET Chapter 10 XNOR T est Please contact your SMSC representative for a detai led description of how this te st mode is enabled and utilized.[...]

  • Page 53

    USB MultiSwitch TM Hub Datasheet SMSC USB2524 53 Revision 1.91 (08-22-07) DA T ASHEET Chapter 1 1 DC Parameters 1 1.1 Maximum Guaranteed Ratings Operating T emperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 o C to +70 o C S torage T emperature Range . . . . . . . . . . . . . . . . . . . .[...]

  • Page 54

    USB MultiSwitch TM Hub Datasheet Revision 1.91 (08-22-07) 54 SMSC USB2524 DA T ASHEET Input Buffer with Pull- Down (IPD ) Low Input Leve l High Input Level Low Input Leakage High Input Leakage V ILI V IHI I ILL I IHL 2.0 0.8 30 10 V V uA uA TTL Levels V IN = 0 V IN = V DD33 ICLK Input Buffer Low Input Leve l High Input Level Input Leakage V ILCK V [...]

  • Page 55

    USB MultiSwitch TM Hub Datasheet SMSC USB2524 55 Revision 1.91 (08-22-07) DA T ASHEET Note 1 1.1 Output leakage is measur ed with the current pins i n high impedance. Note 1 1.2 See USB 2.0 S pecification for U SB DC electrical characte ristics. Note 1 1.3 RBIAS is a 3.3V tolerant ana log pin. CAP ACIT ANCE T A = 25°C; fc = 1MHz; V DDIO = 3.3 V Po[...]

  • Page 56

    USB MultiSwitch TM Hub Datasheet Revision 1.91 (08-22-07) 56 SMSC USB2524 DA T ASHEET Chapter 12 AC S pecifications 12.1 Oscillator/Clock Crystal: Parallel Resonant, Fundamental Mode, 24 MHz ± 100ppm. External Clock: 50% Duty cycl e ± 1 0 % , 2 4 M H z ± 100ppm, Jitter < 100 ps rms. 12.1.1 SMBus Interface: The SMSC Switching Hub conforms to a[...]

  • Page 57

    USB MultiSwitch TM Hub Datasheet SMSC USB2524 57 Revision 1.91 (08-22-07) DA T ASHEET Chapter 13 Package Outline Figure 13.1 USB2524 56-Pin QF N Package Outline an d Parameters[...]