GL3525中文资料USB 3.2 Gen 1 7-DFP Hub Controller数据手册Genesys规格书

描述 Description

Genesys GL3525 is a 7-port, low-power, and configurable hub controller. It is compliant with the USB 3.2 specification. GL3525 integrates Genesys Logic self-developed USB 3.2 Gen 1 Super Speed transmitter/receiver physical layer (PHY) and USB 2.0 High-Speed PHY. It supports Super Speed, Hi-Speed, and Full-Speed USB connections and is fully backward compatible to all USB 2.0 and USB 1.1 hosts. GL3525 also implements multiple TT* (Note1) architecture providing dedicated TT* to each downstream (DS) port, which guarantees Full-Speed(FS) data passing bandwidth when multiple FS devices perform heavy loading operations. Furthermore, GL3525 has built-in 5V to 3.3V and 5V to 1.2V regulators, which saves customers’ BOM cost, and eases for PCB design. GL3525 features the native fast-charging and complies with USB-IF battery charging specification rev1.2, it could fast-charge Apple, Samsung Galaxy devices, and any device complaint with BC1.2/1.1. It also allows portable devices to draw up to 1.5A from GL3525 charging downstream ports (CDP1) or dedicated charging port (DCP2). It can enable systems to fast charge handheld devices even during “Sleep” and “Power-off” modes. The available package for GL3525 is listed in the following table. Product SeriesPackage TypeNumber of DFPsPower Mgmt.LED SupportGL3525QFN 884 SS + 3 HSIndividual/ GangGreen/Amber *Note: TT (transaction translator) implements the control logic defined in Section 11.14 ~ 11.22 of USB specification revision 2.0. TT basically handles the unbalanced traffic speed between the USPORT (operating in HS) and DSPORTS (operating in FS/LS) of hub.  1 CDP, charging downstream port, the Battery Charging Rev.1.2-compliant USB port that does data communication and charges device up to 1.5A.2 DCP, dedicated charging port, the Battery Charging Rev.1.2-compliant USB port that only charges devices up to 1.5A, similar to wall chargers.

特性 Features

Upstream port supports SuperSpeed (SS), HighSpeed (HS) and FullSpeed (FS) trafficDownstream ports support SS, HS, FS, and LowSpeed (LS) traffic1 control pipe and 1 interrupt pipeBackward compatible to USB specification Revision 2.0/1.1Compliant with USB Battery Charging Revision v1.2, supporting CDP, DCP, and ACA-DockDownstream ports can be turned from a Standard Downstream Port (SDP) into Charging Downstream Port (CDP) or Dedicated Charging Port (DCP)Downstream devices can be charged while upstream VBUS is not present, which can be applied on wall charger applicationsUpstream port is capable of charging and data communicating simultaneously for portable devices supporting ACA-Dock or proprietary charging protocolsSupporting Apple 1A/2.1A/2.4A and Samsung Galaxy devices fast-charging256Kbyte for dual regions of firmwareProviding dedicated TT control logics for each downstream portSuperior performance when multiple FS devices operate concurrentlyImproving output drivers with slew-rate control for EMI reductionInternal power-fail detection for ESD recoverySupporting USB 3.2 U0/U1/U2/U3 power management statesSupporting USB Link Power Management (LPM) L0/L1/L2Supporting individual/gang mode over-current detection for all downstream portsSupporting both low/high-enabled power switchesPatented Smart Power ManagementConfigurable charging portConfigurable 4/3/2 SuperSpeed and 3/2/1 HighSpeed downstream ports, downstream port can be disabled/enabled by each specific port for USB3.1/USB2.0Supporting full in-system programming firmware upgradeSupporting compound-device (non-removable setting on downstream ports)Supporting customization VID/PIDSupporting Poly-fuse/Power-switchAutomatic switching between self-powered and bus-powered modesSupporting electrical tuning for each specific portSupporting programmable breathing LEDSupporting register setting by firmwareSupporting vendor command and SMBUSAllow downstream ports to connect up to 11 devices, 4 x USB3.1 non-removable devices with 7 x USB2.0 non-removable devices or exposed portsSingle external 25 MHz crystal / Oscillator clock inputBuilt-in upstream port 1.5KΩ pull-up and downstream port 15KΩ pull-down resistorsBuilt-in 5 to 3.3V and 5 to 1.2V regulatorMultiple upstream ports supported with customized switching mechanismHotkey detection on the single assigned portBillboard/USB-C bridge integratedHID integratedStandalone USB hub/Docking stationTablet/Ultrabook/NBMotherboardMonitor built-in hub, GPIOs can be programmed as I2C interface to easily update scalar firmware through USB interfaceTV built-in hubCompound device, such as hub-reader applicationUSB wall chargerOther consumer electronicsCustomized applications