MT7621联发科MT7621芯片手册

loginid=[e-mail],time=2013-12-0409:28:16,ip=121.35.223.183,doctitle=MT7621_Datasheet_v0_3.docx,company=Z-LinkLimited香港瑞聯電子_RLTMT7621_Data_Sheet_v0.2Page1of44MT7621NetworkProcessorMT7621DATASHEETMEDIATEKCONFIDENTIALloginid=[e-mail],time=2013-12-0409:28:16,ip=121.35.223.183,doctitle=MT7621_Datasheet_v0_3.docx,company=Z-LinkLimited香港瑞聯電子_RLTMT7621_Data_Sheet_v0.2Page2of44MT7621NetworkProcessorApplications:InternetservicerouterWirelessrouterHomesecuritygatewayNASdevicesiNICsSwitchcontrolprocessorOverviewTheMT7621integratesadual-coreMIPS1004K(880MHz),HNAT/HQoS/Samba/VPNaccelerators,5pGbEswitch,2xrGMII,USB3.0,USB2.0,3xPCIe,SD-XC.ThepowerfulCPUwithrichportfolioissuitablefor802.11ac,LTEcat4/5,edge,hotspot,VPN,AC(AccessControl).Itcanalsoconnecttotouch-panel,ZigBee/Z-WaveforInternetServiceRouterandHomeSecurityGateway.Forthenextgenerationrouter,MT7621providesseveraldedicatedhardwareenginestoacceleratetheNAT,QoS,SambaandVPNtraffic.TheseacceleratorsrelieftheCPUforotherupperlayerapplications.FeaturesEmbeddedMIPS1004Kc(880MHz,Dual-Core)-32KBI-Cacheand32KBD-Cachepercore-256KBL2Cache(sharedbyDual-Core)-SMPcapable-SingleprocessoroperationconfigurableGigabitSwitch-5portswithfull-linerate-5-port10/100/1000MbpsMDItransceiversOneRGMII/MIIinterface16-bitDDR2/3upto256/512MbytesSPI(2chipselect),NANDFlash(SLC),SDXCUSB3x1+USB2x1orUSB2x2(allhost)PCIehostx3I2C,UART,JTAG,MDC,MDIO,GPIOVoIPsupport(I2S,PCM)Audiointerface(SPDIF-Tx,I2S,PCM)DeliverthesuperbSambaperformanceviaUSB2.0/USB3.0/SD-XCHWstorageacceleratorHWNAT-2Gbpswiredspeed-L2bridge-IPv4routing,NAT,NAPT-IPv6routing,DS-Lite,6RD,6to4HWQoS-16hardwarequeuestoguaranteethemin/maxbandwidthofeachflow.-Seamlesslyco-workwithHWNATengine.-2Gbpswiredspeed.HWCryptoEngine-Deliver400~500MbpsIPSecthroughputGreenIntelligentClockScaling(exclusive)DDR2/3:ODToff,Self-refreshmodeFirmware:Linux2.6SDK,OpenWRTRGMIIiNICDriver:Linux2.4/2.6FunctionalBlockDiagramDDR2(2Gbits,800)DDR3(4Gbits,1200)NANDFlash(8Gbits)SPIFlash/CodecUARTInterfaceUSB3.0InterfaceUSB2.0InterfacePCIeInterfaceAudioInterfaceI2CInterfaceGPIO/LEDClock/Timer/Reset/PLLDRAMController01234GigabitSwitchSPI(2)PCIeHost(3)USB3.0HostUARTLite(3)ExternalInterface25/40MHzCrystalRGMIINAND/SD-XCI2CI2S,PCM,S/PDIFHWNAT+HWQoSCryptoStorageAcceleratorUSB2.0HostMIPS1004KEc(880MHz)32KI-Cache32KD-CacheMIPS1004KEc(880MHz)32KI-Cache32KD-CacheL2-Cache256KBCacheCoherencyPortTransformerMEDIATEKCONFIDENTIALloginid=[e-mail],time=2013-12-0409:28:16,ip=121.35.223.183,doctitle=MT7621_Datasheet_v0_3.docx,company=Z-LinkLimited香港瑞聯電子_RLTMT7621_Data_Sheet_v0.2Page3of44MT7621NetworkProcessorTableofContentsOVERVIEW.......................................................................................................................................................2FEATURES........................................................................................................................................................2FUNCTIONALBLOCKDIAGRAM........................................................................................................................2TABLEOFCONTENTS........................................................................................................................................31.MAINFEATURES..........................................................................................................................................51.1SWITCHCORE....................................................................................................................................................51.1.1Overview................................................................................................................................................51.1.2Features.................................................................................................................................................62.PINS.............................................................................................................................................................72.1BALLMAP(TOPVIEW).......................................................................................................................................72.2PINDESCRIPTIONS.............................................................................................................................................82.3PINSHARINGSCHEMES.....................................................................................................................................152.3.1GPIOpinsharescheme........................................................................................................................152.3.2UARTpinsharescheme.......................................................................................................................162.3.3RGMIIpinshareschemes.....................................................................................................................172.3.4WDT_RST_MODEpinsharescheme.........