USB2514-AEZG

USB2514 USB 2.0 High-Speed 4-Port Hub Controller PRODUCT FEATURES General Description The SMSC 4-Port Hub is low power, OEM configurable, MTT (multi transaction translator) hub controller IC with 4 downstream ports for embedded USB solutions. The 4-port hub is fully compliant with the USB 2.0 Specification and will attach to an upstream port as a Full-Speed Hub or as a Full-/High-Speed Hub. The 4Port Hub supports Low-Speed, Full- Speed, and HighSpeed (if operating as a High-Speed Hub) downstream devices on all of the enabled downstream ports. Datasheet Flexible port mapping and disable sequence. Ports can be disabled/reordered in any order to support multiple product SKUs. Hub will automatically reorder the remaining ports to match the Host controller's numbering scheme Programmable USB differential-pair pin location Ease PCB layout by aligning USB signal lines directly to connectors Programmable USB signal drive strength. Recover USB signal integrity due to compromised system environment using 4-level driving strength resolution Select the presence of a permanently hardwired USB peripheral device on a port by port basis Configure the delay time for filtering the over-current sense inputs Configure the delay time for turning on downstream port power Configure the polarity of downstream port power control signals Indicate the maximum current that the 4-port hub consumes from the USB upstream port Indicate the maximum current required for the hub controller Supports Custom String Descriptor up to 31 characters in length for: – Product String – Manufacturer String – Serial Number String General Features Hub Controller IC with 4 downstream ports High-performance multiple transaction translator. MultiTRAK™ Technology Provides one transaction translator per port Enhanced OEM configuration options available through either a single serial i2C EEPROM, or SMBus Slave Port 36-pin (6x6mm) and 48-Pin (7x7mm) QFN lead-free, RoHS compliant packages Footprint compatible with USB2513 and USB2512 (36-pin QFN) to provide designers with flexibility regarding the quantity of USB expansion ports utilized without redesign Hardware Features Low power operation Full Power Management with individual or ganged power control of each downstream port On-chip Power On Reset (POR) Internal 1.8V Voltage Regulator Fully integrated USB termination and Pull-up/Pulldown resistors On Board 24MHz Crystal Driver or External 24/48MHz clock input USB host/device speed indicator. Per-port 3-color LED drivers that indicate the speed of USB host and device connection - hi-speed (480 Mbps), full-speed (12 Mbps), low-speed (1.5 Mbps) (48-pin QFN) Enhanced EMI rejection and ESD protection performance Pin Selectable Options for Default Configuration — Select Downstream Ports as Non-Removable Ports — Select Downstream Ports as Disabled Ports — Select Downstream Port Power Control and OverCurrent Detection on a Ganged or Individual Basis — Select Downstream Port Power Control Polarity — Select USB Signal Drive Strength — Select USB Differential Pair Pin location — Select on-chip or off-chip voltage regulator mode Applications LCD monitors and TVs Multi-function USB peripherals PC mother boards Set-top boxes, DVD players, DVR/PVR Printers and scanners PC media drive bay Portable hub boxes Mobile PC docking Embedded systems OEM Selectable Features Customize Vendor ID, Product ID, and Device ID Select whether the hub is part of a compound device (When any downstream port is permanently hardwired to a USB peripheral device, the hub is part of a compound device) SMSC USB2514 DATASHEET Revision 1.92 (05-08-07) USB 2.0 High-Speed 4-Port Hub Controller Datasheet ORDER NUMBERS: USB2514-AEZG FOR 36 PIN, QFN LEAD-FREE ROHS COMPLIANT PACKAGE USB2514-HZH FOR 48 PIN, QFN LEAD-FREE ROHS COMPLIANT PACKAGE 80 ARKAY DRIVE, HAUPPAUGE, NY 11788 (631) 435-6000, FAX (631) 273-3123 Copyright © 2007 SMSC or its subsidiaries. All rights reserved. Circuit diagrams and other information relating to SMSC products are included as a means of illustrating typical applications. Consequently, complete information sufficient for construction purposes is not necessarily given. Although the information has been checked and is believed to be accurate, no responsibility is assumed for inaccuracies. SMSC reserves the right to make changes to specifications and product descriptions at any time without notice. Contact your local SMSC sales office to obtain the latest specifications before placing your product order. The provision of this information does not convey to the purchaser of the described semiconductor devices any licenses under any patent rights or other intellectual property rights of SMSC or others. All sales are expressly conditional on your agreement to the terms and conditions of the most recently dated version of SMSC's standard Terms of Sale Agreement dated before the date of your order (the "Terms of Sale Agreement"). The product may contain design defects or errors known as anomalies which may cause the product's functions to deviate from published specifications. Anomaly sheets are available upon request. SMSC products are not designed, intended, authorized or warranted for use in any life support or other application where product failure could cause or contribute to personal injury or severe property damage. Any and all such uses without prior written approval of an Officer of SMSC and further testing and/or modification will be fully at the risk of the customer. Copies of this document or other SMSC literature, as well as the Terms of Sale Agreement, may be obtained by visiting SMSC’s website at http://www.smsc.com. SMSC is a registered trademark of Standard Microsystems Corporation (“SMSC”). Product names and company names are the trademarks of their respective holders. SMSC DISCLAIMS AND EXCLUDES ANY AND ALL WARRANTIES, INCLUDING WITHOUT LIMITATION ANY AND ALL IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND AGAINST INFRINGEMENT AND THE LIKE, AND ANY AND ALL WARRANTIES ARISING FROM ANY COURSE OF DEALING OR USAGE OF TRADE. IN NO EVENT SHALL SMSC BE LIABLE FOR ANY DIRECT, INCIDENTAL, INDIRECT, SPECIAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES; OR FOR LOST DATA, PROFITS, SAVINGS OR REVENUES OF ANY KIND; REGARDLESS OF THE FORM OF ACTION, WHETHER BASED ON CONTRACT; TORT; NEGLIGENCE OF SMSC OR OTHERS; STRICT LIABILITY; BREACH OF WARRANTY; OR OTHERWISE; WHETHER OR NOT ANY REMEDY OF BUYER IS HELD TO HAVE FAILED OF ITS ESSENTIAL PURPOSE, AND WHETHER OR NOT SMSC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Revision 1.92 (05-08-07) DATASHEET 2 SMSC USB2514 USB 2.0 High-Speed 4-Port Hub Controller Datasheet Table of Contents Chapter 1 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Chapter 2 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Chapter 3 Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.1 3.2 PIN Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Buffer Type Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Chapter 4 Configuration Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 4.1 4.2 4.3 4-Port Hub . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.1.1 Hub Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.1.2 VBus Detect. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 QFN and 48 QFN Feature Differences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EEPROM Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3.1 Internal Register Set (Common to EEPROM and SMBus) . . . . . . . . . . . . . . . . . . . . . . . 4.3.2 I2C EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3.3 In-Circuit EEPROM Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SMBus Slave Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4.1 Bus Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4.2 Invalid Protocol Response Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4.3 General Call Address Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4.4 Slave Device Time-Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4.5 Stretching the SCLK Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4.6 SMBus Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4.7 Bus Reset Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4.8 SMBus Alert Response Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Default Configuration Option: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Default Strapping Options: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.7.1 Internal POR Hardware Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.7.2 External Hardware RESET_N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.7.3 USB Bus Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 18 18 18 19 19 31 32 32 32 33 33 34 34 34 34 34 34 34 35 35 35 38 4.4 4.5 4.6 4.7 Chapter 5 DC Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 5.1 5.2 Maximum Guaranteed Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Recommended Operating Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Chapter 6 AC Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 6.1 Oscillator/Clock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.1.1 SMBus Interface: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.1.2 I2C EEPROM: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.1.3 USB 2.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 44 44 44 Chapter 7 Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 SMSC USB2514 DATASHEET 3 Revision 1.92 (05-08-07) USB 2.0 High-Speed 4-Port Hub Controller Datasheet List of Figures Figure 1.1 Figure 1.2 Figure 2.1 Figure 4.1 Figure 4.2 Figure 4.3 Figure 4.4 Figure 4.5 Figure 4.6 Figure 7.1 Figure 7.2 USB2514 36-Pin QFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 USB2514 48-Pin QFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 USB2514 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Block Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Block Read. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 LED Strapping Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Reset_N Timing for Default/Strap Option Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Reset_N Timing for EEPROM Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Reset_N Timing for SMBus Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 36-Pin QFN, 6x6mm Body, 0.5mm Pitch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 48-Pin QFN, 7x7mm Body, 0.5mm Pitch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Revision 1.92 (05-08-07) DATASHEET 4 SMSC USB2514 USB 2.0 High-Speed 4-Port Hub Controller Datasheet List of Tables Table 3.1 Table 3.2 Table 3.3 Table 3.4 Table 4.1 Table 4.2 Table 4.3 Table 4.4 Table 4.5 Table 5.1 Table 5.2 USB2514 Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 SMBus or EEPROM Interface Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 USB2514 Power, Ground, No Connect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 USB2514 Buffer Type Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 36 QFN and 48 QFN Feature Differences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Internal EEPROM and SMBus Register Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Reset_N Timing for Default/Strap Option Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Reset_N Timing for EEPROM Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Reset_N Timing for SMBus Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 DC Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Pin Capacitance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 SMSC USB2514 DATASHEET 5 Revision 1.92 (05-08-07) USB 2.0 High-Speed 4-Port Hub Controller Datasheet Chapter 1 Pin Configuration SDA/SMBDATA/NON_REM1 SCL/SMBCLK/CFG_SEL0 HS_IND/CFG_SEL1 VBUS_DET PRTPWR4 RESET_N OCS4_N 27 26 25 24 23 22 21 20 SUSP_IND/LOCAL_PWR/NON_REM0 VDDA33 USBUP_DM USBUP_DP XTAL2 XTAL1/CLKIN VDD18PLL RBIAS VDD33PLL 28 29 30 31 32 33 34 35 36 1 2 3 4 5 6 7 8 9 19 18 17 16 OCS3_N VDD33 PRTPWR3 OCS2_N PRTPWR2 VDD33CR VDD18 OCS1_N PRTPWR1 TEST VDDA33 SMSC USB2514 (Top View QFN-36) Thermal Slug (must be connected to VSS) 15 14 13 12 11 10 USBDN1_DP/PRT_DIS_P1 USBDN2_DP/PRT_DIS_P2 VDDA33 USBDN3_DP/PRT_DIS_P3 USBDN3_DM/PRT_DOS_M3 USBDN1_DM/PRT_DIS_M1 USBDN2_DM/PRT_DIS_M2 Indicates pins on the bottom of the device. Figure 1.1 USB2514 36-Pin QFN Revision 1.92 (05-08-07) DATASHEET 6 USBDN4_DM/PRT_DIS_M4 USBDN4_DP/PRT_DIS_P4 SMSC USB2514 USB 2.0 High-Speed 4-Port Hub Controller Datasheet SDA/SMBDATA/NON_REM1 SCL/SMBCLK/CFG_SEL0 36 35 34 33 32 31 30 29 28 27 26 LED_A1_N/PRT_SWP1 PRTPWR_POL SUSP_IND/LOCAL_PWR/NON_REM0 SEL48 VDDA33 USBUP_DM USBUP_DP XTAL2 XTAL1/CLKIN VDD18PLL RBIAS VDD33PLL 37 38 39 40 41 42 43 44 45 46 47 48 10 11 12 1 2 3 4 5 6 7 8 9 Thermal Slug (must be connected to VSS) 25 24 23 22 21 20 19 18 17 16 15 14 13 LED_A2_N/PRT_SWP2 LED_B1_N/BOOST0 HS_IND/CFG_SEL1 VBUS_DET CFG_SEL2 PRTPWR4 RESET_N OCS4_N OCS3_N VDD33 LED_B2_N/BOOST1 LED_A3_N/PRT_SWP3 LED_B3_N/GANG_EN PRTPWR3 OCS2_N PRTPWR2 VDD33CR VDD18 OCS1_N PRTPWR1 TEST LED_A4_N/PRT_SWP4 SMSC USB2514 (Top View QFN-48) REG_EN VDDA33 VDDA33 USBDN1_DM/PRT_DIS_M1 USBDN2_DM/PRT_DIS_M2 USBDN3_DM/PRT_DIS_M3 USBDN4_DM/PRT_DIS_M4 USBDN1_DP/PRT_DIS_P1 USBDN2_DP/PRT_DIS_P2 USBDN3_DP/PRT_DIS_P3 Indicates pins on the bottom of the device. Figure 1.2 USB2514 48-Pin QFN SMSC USB2514 DATASHEET 7 USBDN4_DP/PRT_DIS_P4 LED_B4_N Revision 1.92 (05-08-07) USB 2.0 High-Speed 4-Port Hub Controller Datasheet Chapter 2 Block Diagram To Upstream VBUS Upstream USB Data 3.3V 24 MHz Crystal 1.8V To EEPROM or SMBus Master SD SCK PLL Bus-Power Detect/VBUS Pulse Upstream PHY 1.8V Reg Serial Interface Repeater SIE Controller TT #1 TT #2 TT #3 TT #4 Port Controller Routing & Port Re-Ordering Logic Port #1 PHY#1 OC Sense Switch Driver LED Drivers Port #2 PHY#2 OC Sense Switch Driver LED Drivers Port #3 PHY#3 OC Sense Switch Driver LED Drivers Port #4 PHY#4 OC Sense Switch Driver LED Drivers USB Data OC Sense Downstream Switch/LED Drivers USB Data OC Sense Downstream Switch/LED Drivers USB Data OC Sense Downstream Switch/LED Drivers USB Data OC Sense Downstream Switch/LED Drivers Figure 2.1 USB2514 Block Diagram Revision 1.92 (05-08-07) DATASHEET 8 SMSC USB2514 USB 2.0 High-Speed 4-Port Hub Controller Datasheet Chapter 3 Pin Descriptions 3.1 PIN Descriptions This section provides a detailed description of each signal. The signals are arranged in functional groups according to their associated interface. The “N” symbol in the signal name indicates that the active, or asserted, state occurs when the signal is at a low voltage level. When “N” is not present before the signal name, the signal is asserted when at the high voltage level. The terms assertion and negation are used exclusively. This is done to avoid confusion when working with a mixture of “active low” and “active high” signals. The term assert, or assertion, indicates that a signal is active, independent of whether that level is represented by a high or low voltage. The term negate, or negation, indicates that a signal is inactive. Table 3.1 USB2514 Pin Descriptions BUFFER TYPE SYMBOL 36 QFN 48 QFN DESCRIPTION UPSTREAM USB INTERFACES USBUP_DP USBUP_DM 31 30 43 42 IO-U USB Bus Data These pins connect to the upstream USB bus data signals (Host port, or upstream hub). I/O12 Detect Upstream VBUS Power Detects state of Upstream VBUS power. The SMSC Hub monitors VBUS_DET to determine when to assert the internal D+ pull-up resistor (signaling a connect event). When designing a detachable hub, this pin must be connected to the VBUS power pin of the USB port that is upstream of the hub. For self-powered applications with a permanently attached host, this pin must be connected to 3.3V (typically VDD33). DOWNSTREAM 4-PORT USB 2.0 INTERFACE USBDN_DP[4:1]/ PRT_DIS_P[4:1] & USBDN_DM[4:1]/ PRT_DIS_M[4:1] 9 7 4 2 8 6 3 1 9 7 4 2 8 6 3 1 IO-U High-Speed USB Data & Port Disable Strap Option These pins connect to the downstream USB peripheral devices attached to the hub’s port. Downstream Port Disable Strap option: If this strap is enabled by package and configuration settings (see Table 3.2), this pin will be sampled at RESET_N negation to determine if the port is disabled. Both USB data pins for the corresponding port must be tied to the VDDA33 to disable the associated downstream port. PRTPWR[4:1] 20 18 16 12 27 21 19 15 O12 USB Power Enable Enables power to USB peripheral devices downstream. The active signal level of the PRTPWR[4:1] pins is determined by the Power Polarity Strapping function of the PRTPWR_POL pin. 9 Revision 1.92 (05-08-07) VBUS_DET 27 35 SMSC USB2514 DATASHEET USB 2.0 High-Speed 4-Port Hub Controller Datasheet Table 3.1 USB2514 Pin Descriptions (continued) BUFFER TYPE I/O12 SYMBOL LED_A[4:1]_N/ PRT_SWP[4:1] 36 QFN n/a 48 QFN 13 23 25 37 DESCRIPTION Port LED Indicators & Port Swap strapping option Indicator LED for ports 1-4. Will be active low when LED support is enabled via EEPROM or SMBus. If this strap is enabled by package and configuration settings (see Table 3.2), this pin will be sampled at RESET_N negation to determine the electrical connection polarity of the downstream USB Port pins (USB_DP and USB_DM). Also, the active state of the LED will be determined as follows: ‘0’ = Port Polarity is normal, and the LED is active high. ‘1’ = Port Polarity (for USB_DP and USB_DM) is swapped, and the LED is active low. LED_B4_N n/a 12 I/O12 Enhanced Port 4 LED Enhanced Indicator LED for port 4. Will be active low when LED support is enabled via EEPROM or SMBus. LED_B3_N/ GANG_EN n/a 22 I/O12 Enhanced Port 3 LED & Gang Power and Overcurrent Strap Option Enhanced Indicator LED for port 3. Will be active low when LED support is enabled via EEPROM or SMBus. GANG_EN: Selects between Gang or Individual Port power and Over Current sensing. If this strap is enabled by package and configuration settings (see Table 3.2), this pin will be sampled at RESET_N negation to determine the mode as follows: ‘0’ = Individual sensing & switching, and LED_B3_N is active high. ‘1’ = Ganged sensing & switching, and LED_B3_N is active low. LED_B[2:1]_N/ BOOST[1:0] n/a 24 36 I/O12 Enhanced Port [2:1] LED & Phy Boost strapping option Enhanced Indicator LED for ports 1 & 2. Will be active low when LED support is enabled via EEPROM or SMBus. Revision 1.92 (05-08-07) DATASHEET 10 SMSC USB2514 USB 2.0 High-Speed 4-Port Hub Controller Datasheet Table 3.1 USB2514 Pin Descriptions (continued) BUFFER TYPE SYMBOL 36 QFN 48 QFN DESCRIPTION BOOST[1:0], If this strap is enabled by package and configuration settings (see Table 3.2), this pin will be sampled at RESET_N negation to determine if all PHY ports (upstream and downstream) operate at a normal or boosted electrical level. Also, the active state of the LEDs will be determined as follows: See for BOOST values: Section 4.3.1.26, "Register F6h: Boost_Up (Reset = 0x00)" and Section 4.3.1.27, "Register F8h: Boost_4:0 (Reset = 0x00)". BOOST[1:0] = BOOST_IOUT[1:0] BOOST[1:0] = ‘00’, LED_B2_N is active high, LED_B1_N is active high. BOOST[1:0] = ‘01’, LED_B2_N is active high, LED_B1_N is active low. BOOST[1:0] = ‘10’, LED_B2_N is active low, LED_B1_N is active high. BOOST[1:0] = ‘11’, LED_B2_N is active low, LED_B1_N is active low. PRTPWR_POL n/a 38 I/O12 Port Power Polarity strapping Port Power Polarity strapping determination for the active signal polarity of the [4:1]PRTPWR pins. While RESET_N is asserted, the logic state of this pin will (through the use of internal combinatorial logic) determine the active state of the [4:1]PRTPWR pins in order to ensure that downstream port power is not inadvertently enabled to inactive ports during a hardware reset. When RESET_N is negated, the logic value will be latched internally, and will retain the active signal polarity for the PRTPWR[4:1] pins. ‘1’ = PRTPWR[4:1]_P/N pins have an active ‘high’ polarity ‘0’ = PRTPWR[4:1]_P/N pins have an active ‘low’ polarity Warning: Active Low port power controllers may glitch the downstream port power when system power is first applied. Care should be taken when designing with active low components! Note: If PRTPWR_POL is not an available pin on the package, the hub will support active high power controllers only! OCS[4:1]_N 21 19 17 13 28 26 20 16 IPU Over Current Sense Input from external current monitor indicating an overcurrent condition. {Note: Contains internal pull-up to 3.3V supply} SMSC USB2514 DATASHEET 11 Revision 1.92 (05-08-07) USB 2.0 High-Speed 4-Port Hub Controller Datasheet Table 3.1 USB2514 Pin Descriptions (continued) BUFFER TYPE I-R SYMBOL RBIAS 36 QFN 35 48 QFN 47 DESCRIPTION USB Transceiver Bias A 12.0kΩ (+/- 1%) resistor is attached from ground to this pin to set the transceiver’s internal bias settings. SERIAL PORT INTERFACE SDA/ SMBDATA/ NON_REM1 22 29 I/OSD12 Serial Data / SMB Data & Port Non Removable Strap Option NON_REM1: Non removable port strap option. If this strap is enabled by package and configuration settings (see Table 3.2), this pin will be sampled (in conjunction with LOCAL_PWR/SUSP_IND/NON_REM0) at RESET_N negation to determine if imports [4:1] contain permanently attached (non-removable) devices: NON_REM[1:0] = ‘00’, All ports are removable, NON_REM[1:0] = ‘01’, Port 1 is nonremovable, NON_REM[1:0] = ‘10’, Ports 1 & 2 are non-removable, NON_REM[1:0] = ‘11’, Ports 1, 2 & 3 are non-removable SCL/ SMBCLK/ CFG_SEL0 24 31 I/OSD12 Serial Clock (SCL) SMBus Clock (SMBCLK) Configuration Select_SEL0: The logic state of this multifunction pin is internally latched on the rising edge of RESET_N (RESET_N negation), and will determine the hub configuration method as described in Table 3.2, "SMBus or EEPROM Interface Behavior". 25 32 I/O12 High-Speed Upstream port indictor & Configuration Programming Select HS_IND: High Speed Indicator for upstream port connection speed. The active state of the LED will be determined as follows: CFG_SEL1 = ‘0’, HS_IND is active high, CFG_SEL1 = ‘1’, HS_IND is active low, ‘Asserted’ = Hub is connected at HS ‘Negated’ = Hub is connected at FS CFG_SEL1: The logic state of this pin is internally latched on the rising edge of RESET_N (RESET_N negation), and will determine the hub configuration method as described in Table 3.2, "SMBus or EEPROM Interface Behavior". HS_IND/ CFG_SEL1 Revision 1.92 (05-08-07) DATASHEET 12 SMSC USB2514 USB 2.0 High-Speed 4-Port Hub Controller Datasheet Table 3.1 USB2514 Pin Descriptions (continued) BUFFER TYPE I SYMBOL CFG_SEL2 36 QFN n/a 48 QFN 33 DESCRIPTION Configuration Programming Select Note: This pin is not available in all packages; it is held to a logic ‘0’ when not available The logic state of this pin is internally latched on the rising edge of RESET_N (RESET_N negation), and will determine the hub configuration method as described in Table 3.2, "SMBus or EEPROM Interface Behavior" MISC XTAL1/ CLKIN 33 45 ICLKx Crystal Input/External Clock Input 24MHz crystal or external clock input. This pin connects to either one terminal of the crystal or to an external 24/48MHz clock when a crystal is not used. Note: XTAL2 32 44 OCLKx 48MHz only available in 48 QFN. Crystal Output 24MHz Crystal This is the other terminal of the crystal, or pulled high when an external clock source is used to drive XTAL1/CLKIN. This output must not be used to drive any external circuitry other than the crystal circuit. RESET_N 26 34 IS RESET Input The system can reset the chip by driving this input low. The minimum active low pulse is 1 us. When the RESET_N pin is pulled to VDD33, the internal POR (Power on Reset) is enabled and no external reset circuitry is required. The internal POR holds the internal logic in reset until the power supplies are stable. SMSC USB2514 DATASHEET 13 Revision 1.92 (05-08-07) USB 2.0 High-Speed 4-Port Hub Controller Datasheet Table 3.1 USB2514 Pin Descriptions (continued) BUFFER TYPE I/O SYMBOL SUSP_IND/ LOCAL_PWR/ NON_REM0 36 QFN 28 48 QFN 39 DESCRIPTION Active/Suspend status LED or Local-Power & Non Removable Strap Option Suspend Indicator: Indicates USB state of the hub. ‘negated’ = Unconfigured, or configured and in USB Suspend ‘asserted’ = Hub is configured, and is active (i.e., not in suspend) Local Power: Detects availability of local self-power source. Low = Self/local power source is NOT available (i.e., Hub gets all power from Upstream USB VBus). High = Self/local power source is available. NON_REM0 Strap Option: If this strap is enabled by package and configuration settings (see Table 3.2), this pin will be sampled (in conjunction with NON_REM1) at RESET_N negation to determine if ports [4:1] contain permanently attached (non-removable) devices. Also, the active state of the LED will be determined as follows: NON_REM[1:0] = ‘00’, All ports are removable, and the LED is active high NON_REM[1:0] = ‘01’, Port 1 is nonremovable, and the LED is active low NON_REM[1:0] = ‘10’, Ports 1 & 2 are non-removable, and the LED is active high NON_REM[1:0] = ‘11’, Ports 1, 2 & 3 are nonremovable, and the LED is active low TEST 11 14 IPD TEST pin XNOR continuity tests all signal pins on the hub, please contact your SMSC representative for a detailed description of how this test mode is enabled and utilized. SEL48 n/a 40 IPD Select 48 MHz clock input 48MHz external clock input select:. When the hub is clocked from an external clock source, this pin selects either 24MHz or 48MHz mode. ‘0’ = 24MHz ‘1’ = 48MHz REG_EN n/a 11 IPU Regulator Enable REG_EN: This pin is internally pulled up to enable the internal 1.8V regulators, and this pin should be treated as a no-connect. In order to disable the regulators, this pin will need to be externally connected to ground. When the internal regulator is enabled, the 1.8V power pins must be left unconnected, except for the required bypass capacitors. Revision 1.92 (05-08-07) DATASHEET 14 SMSC USB2514 USB 2.0 High-Speed 4-Port Hub Controller Datasheet Table 3.2 SMBus or EEPROM Interface Behavior CFG_SEL2 36-Pin QFN 48-Pin QFN 36-Pin QFN 48-Pin QFN 36-Pin QFN 48-Pin QFN 36-Pin QFN 48-Pin QFN 48-Pin QFN N/A 0 N/A 0 CFG_SEL1 0 0 0 0 CFG_SEL0 0 0 1 1 SMBUS OR EEPROM INTERFACE BEHAVIOR Internal Default Configuration Strap Options Enabled Port Indicators Not Supported Configured as an SMBus slave for external download of user-defined descriptors. SMBus slave address 58 (0101100x) Strap Options Disabled All Settings Controlled by Registers Internal Default Configuration Strap Options Enabled Bus Power Operation LED Mode = USB 2-Wire I2C EEPROMS are supported. Strap Options Disabled All Settings Controlled by Registers N/A 0 N/A 0 1 1 1 1 1 0 0 0 1 1 0 Internal Default Configuration Strap Options Disabled Dynamic Power Switching Enabled Internal Default Configuration Strap Options Disabled Dynamic Power Switching Enabled LED Mode = USB Internal Default Configuration Strap Options Disabled Internal Default Configuration Strap Options Disabled LED Mode = USB Ganged Power Switching Ganged Over-Current Sensing 48-Pin QFN 1 0 1 48-Pin QFN 48-Pin QFN 1 1 1 1 0 1 Notes: Denotes 48-Pin QFN Denotes 36-Pin QFN SMSC USB2514 DATASHEET 15 Revision 1.92 (05-08-07) USB 2.0 High-Speed 4-Port Hub Controller Datasheet Table 3.3 USB2514 Power, Ground, No Connect PACKAGE SYMBOL VDD18 36 QFN 14 48 QFN 17 VDD Core +1.8V core power. If the internal regulator is enabled, then this pin must have a 1.0μF (or greater) ±20% (ESR