RTC Interface Pin Assignments, Rtcxin

Pin and Signal Descriptions

Pin Descriptions

1.2.10Real Time Clock (RTC) Interface Pin Assignments

Table 12: RTC Interface Pin Assignments

Pin Name	I/O	Pin	Power	Description
		Type	Rail
RTC_XIN	I	Analog	RTC_AVDD	RTC Crystal Clock Input
RTC_XOUT	O	Analog	RTC_AVDD	RTC Crystal Clock Feedback

Copyright © 2008 Marvell		Doc. No. MV-S104859-U0 Rev. E
December 2, 2008, Preliminary	Document Classification: Proprietary Information	Page 35

Page 35

Image 35

Marvel Group 88F6281 specifications Real Time Clock RTC Interface Pin Assignments, Rtcxin, Rtcxout

Contents

88F6281 Hardware Specifications Doc Status Preliminary Technical Publication 88F6281 Hardware SpecificationsDocument Conventions Document Status Integrated Controller Hardware Specifications88F6281 High-performance CPU core, running at up to Features Supports Ieee 802.1Qav draft Audio Video Bridging networks Features Bit/4-bit SDmem, SDIO, and MMC cards Up to 50 MHz GbE Port 0 in Gmii mode or GbE Port TDM X16 Table of Contents 132 Table of Contents129 130 Clocking List of Tables List of Tables Revision History 134 Hsbga 288-pin Package Dimensions 13188F6281 Part Order Options 132 List of Figures Pin and Signal Descriptions Inter-IC Sound I2S Test Circuit 107 Preface About this DocumentRelated Documentation Following conventions are used in this document Document Conventions Pin and Signal Descriptions Misc PCI Express PowerPin Logic Flash Term Definition Pin DescriptionsPin Functions and Assignments Table Key Interface Pin Prefix Codes SPI Sdio TDM PTP 88F6281 Hardware Specifications Interface Pin Prefix CodesRTC MPP Twsi Uart Pin Name Description Type Power Supply PinsPower Pin Assignments 88F6281 Hardware Specifications Power Pin Assignments Miscellaneous Pin Assignments Pin Name Power Description Type RailMiscellaneous Pin Assignment Mcke Sstl Vddm DDR Sdram Interface Pin AssignmentsDDR Sdram Interface Pin Assignments Mclkout Sstl Vddm Mncal Mstartburst Sstl VddmMstart Sstl Vddm Burstin Mpcal PCI Express Interface Pin Assignments PCI Express Interface Pin Assignments Sata Port Interface Pin Assignment Pin Name Power Rail Description TypeSata Interface Pin Assignments Gigabit Ethernet Port0/1 Interface Pin Assignments Pin Name Type Power Rail DescriptionGigabit Ethernet Port Interface Pin Assignments Cmos Vddgeb Gerxctl Cmos VddgeaGerxclk Cmos Vddgea To any clock Gmii Receive ErrorMPP2724 MII/MMII Collision Detect MPP32/GE112 MII/MMII Transmit ErrorGmii Transmit Error MII/MMII Receive Error Gemdio Cmos Vddgea Serial Management Interface SMI Interface Pin AssignmentsSerial Management Interface SMI Pin Assignments Gemdc Cmos Vddgea USB 2.0 Data Differential Pair USB 2.0 Interface Pin AssignmentsUSB 2.0 Interface Pin Assignments Jtag Pin Assignment Jtag Interface Pin Assignment Rtcxout Real Time Clock RTC Interface Pin AssignmentsRTC Interface Pin Assignments Rtcxin Nfale Cmos Vddo Nand Flash Interface Pin AssignmentNand Flash Interface Pin Assignment Nfcle Cmos Vddo MPP Interface Pin Assignment MPP Interface Pin Assignment Twsck Cmos Vddo Two-Wire Serial Interface Twsi InterfaceTwo-Wire Serial Interface Twsi Interface Pin Assignment Twsda Cmos Vddo Uart Port 0/1 Interface Pin Assignment Uart Interface Fs is the audio sample rate Audio S/PDIF / I2S Interface Signal AssignmentAudio S/PDIF / I2S Interface Multiplexing option SPICSn Serial Peripheral Interface SPI Interface Signal AssignmentPin Name Pin Type Power Rail Description Serial Peripheral Interface SPI Interface Sdcmd Cmos Vddo Secure Digital Input/Output Sdio InterfaceSdclk Cmos Vddo Time Division Multiplexing TDM Interface Time Division Multiplexing TDM Interface Signal Assignment Tdmspimiso Cmos Vddo Tdmspimosi Cmos Vddo Transport Stream TS Interface Transport Stream TS Interface Signal Assignment Cmos Vddo TS0DATA6 Vddgeb TSMP7 Cmos VddoTSMP8 Cmos Vddo TSMP9 Cmos Vddo Ptpeventreq Cmos Vddo Precise Timing Protocol PTP Interface Signal AssignmentPrecise Timing Protocol PTP Interface Ptpclk Cmos Vddo Pin Name Pin Number Pull up/Pull down Internal Pull-up and Pull-down PinsInternal Pull-up and Pull-down Pins Unused Interface Strapping Unused Interface StrappingUnused Interface Strapping 88F6281 pin list is provided as an Excel file attachment 88F6281 Pin Map and Pin List Pin Multiplexing Multi-Purpose Pins Functional SummaryPin Multiplexing Sata LEDs Audio Nand flash GbE MPP FunctionalityMPP190 MPP3520 MPP4936 Gpio Sysrsto Spimosi MPP Function Summary MPP Function Summary TSMP0 Tdmspi Auspdifi Configuration, on Ethernet Ports Pins Multiplexing Gigabit Ethernet GbE Pins Multiplexing on MPP MPP34 MII1TXEN out GE114 MPP35 MII1RXERR GE115 TS Port Pin Multiplexing Tsmp TS Multiplexing Pins on MPP Clock Type Description Clocking88F6281Clocks Lists the clocks in the 88F6281 Ptpclk Clocking 88F6281ClocksSupported Clock Combinations Sata PHY PLL Spread Spectrum Clock Generator Sscg 88F6192, and 88F6281 Functional Specifications System Power Up/Down and Reset Settings System Power Up/Down and Reset SettingsPower-Up/Down Sequence Requirements Power-Up Sequence Requirements 88F6281 Hardware ResetPower-Down Sequence Requirements SYSRSTn Duration Counter Reset Out SignalPower On Reset POR May reset all settings to the factory default values PCI Express Root Complex Reset PCI Express ResetSheeva CPU TAP Controller Reset Pins Sample Configuration Than the third Tclk cycle after SYSRSTn de-assertion Reset ConfigurationPin Configuration Function 0x4 = MPP33 Cpuclk to DDR CLK Ratio0x0-0x3 = Reserved PCI Express Clock 100 MHz Differential Clock Configuration Sscg Disable= Enable = Disable Serial ROM Data Structure 88F6281 Hardware Specifications Reset ConfigurationPin Configuration Function MPP18 Reserved Serial ROM Initialization Serial ROM Initialization Operation Boot Sequence 88F6281 Hardware Specifications Jtag Interface Jtag InterfaceTAP Controller Instruction Register Idcode Register Map Bypass RegisterJtag Scan Chain ID Register Absolute Maximum Ratings Electrical Specifications PreliminaryElectrical Specifications Preliminary Absolute Maximum Ratings RTC interface 88F6281 Hardware Specifications Absolute Maximum Ratings125 Case temperature 125 Storage temperature MPP, TWSI, JTAG, SDIO, I 2S, SPI Recommended Operating ConditionsRecommended Operating Conditions Parameter Min Typ Max Units Comments Internal clock inverter for crystal Analog supply for RTC in BatteryBack-up mode 105 Junction Temperature Thermal Power Dissipation Thermal Power Dissipation CPU @ 1000 MHz Interface Symbol Test Conditions Max UnitsCurrent Consumption Current Consumption General 3.3V Interface Cmos DC Electrical Specifications DC Electrical SpecificationsGeneral 3.3V Cmos DC Electrical Specifications Electrical Specifications 65*VDDIO Rgmii 1.8V Interface Cmos DC Electrical Specifications35*VDDIO Input high level VIH RTT Sdram DDR2 Interface DC Electrical SpecificationsSdram DDR2 Interface DC Electrical Specifications Following table Vddio means the Vddo power rail Twsi Interface 3.3V DC Electrical SpecificationsSPI Interface 3.3V DC Electrical Specifications Following table, Vddio means the Vddo power rail TDM Interface 3.3V DC Electrical Specifications Reference Clock AC Timing Specifications AC Electrical SpecificationsReference Clock AC Timing Specifications Tclk Description Symbol Min Max Units Tdmspi Output ClockSMI Master Mode Reference Clock Twsi Master Mode Reference Clock Sdram DDR2 Interface AC Timing Table MHz @ Description Symbol Min MaxSdram DDR2 Interface AC Timing Sdram DDR2 Interface AC Timing Table Sdram DDR2 Interface Address Timing Table MHz @ Description Symbol Min Max Units Description Symbol Min Max Units Sdram DDR2 Clock SpecificationsSdram DDR2 Clock Specifications CLK Sdram DDR2 Interface AC Timing DiagramsSdram DDR2 Interface Test Circuit VTT DQSn TDSI tDHI AddressControl Rgmii 10/100 AC Timing Table at Reduced Gigabit Media Independent Interface Rgmii AC TimingRgmii AC Timing Table Rgmii 10/100/1000 AC Timing Table at Rgmii Test Circuit Rgmii AC Timing Diagram Gmii Test Circuit 125 MHz Description Symbol Min MaxGigabit Media Independent Interface Gmii AC Timing Gmii AC Timing Table TLOW THIGH Gmii AC Timing DiagramsTSETUP Hold VILmax MII/MMII MAC Mode AC Timing Table 5.1 MII/MMII MAC Mode AC Timing Table5.2 MII/MMII MAC Mode Test Circuit 5.3 MII/MMII MAC Mode AC Timing Diagrams MII/MMII MAC Mode Input AC Timing Diagram Serial Management Interface SMI AC Timing SMI Master Mode AC Timing TableSMI Master Mode Test Circuit SMI Master Mode AC Timing Table MDC SMI Master Mode AC Timing Diagrams Jtag Interface Test Circuit 30 MHz Description Symbol Min Max UnitsJtag Interface AC Timing Jtag Interface AC Timing Table Jtag Interface Output Delay AC Timing Diagram Jtag Interface AC Timing Diagrams Twsi Master AC Timing Table Two-Wire Serial Interface Twsi AC Timing100 kHz Description Symbol Twsi AC Timing Table Twsi Test Circuit Twsi AC Timing Diagrams Pdif AC Timing Table Sony/Philips Digital Interconnect Format S/PDIF AC Timing9.1 S/PDIF AC Timing Table Pdif Test Circuit 9.2 S/PDIF Test Circuit Inter-IC Sound I2S AC Timing Table Inter-IC Sound Interface I2S AC TimingInter-IC Sound I2S AC Timing Table Inter-IC Sound I2S Test Circuit Inter-IC Sound I2S Output Delay AC Timing Diagram Inter-IC Sound I2S AC Timing Diagrams TDM Interface Test Circuit 192 MHz Description Symbol Min Max UnitsTime Division Multiplexing TDM Interface AC Timing TDM Interface AC Timing Table Pclk DRX TDM Interface Timing DiagramsPclk DTX Description Symbol Min Max SPI Master Mode AC Timing TableSPI Master Mode Test Circuit SPI Master Mode AC Timing Table Data Out TDOVmin TDOVmax TCSB TCSA SPI Master Mode Timing DiagramsTCH tCL Sclk Secure Digital Input/Output Sdio Test Circuit Sdio Host in High Speed Mode AC Timing TableSecure Digital Input/Output Sdio Interface AC Timing Secure Digital Input/Output Sdio AC Timing Table Sdio Host in High Speed Mode Output AC Timing Diagram Secure Digital Input/Output Sdio AC Timing Diagrams Transport Stream Input Interface AC Timing Table Transport Stream TS Interface AC TimingTransport Stream Interface AC Timing Table Transport Stream Output Interface AC Timing Table Transport Stream Interface Test Circuit Transport Stream Interface Timing Diagrams Transport Stream Input Interface AC Timing Diagram Clock frequency FCK 100.0 Differential Interface Electrical CharacteristicsDifferential Interface Reference Clock Characteristics Fmod 33.0 Symbol Min Max UnitsPCI Express Interface Spread Spectrum Requirements PCI Express Interface Driver and Receiver Characteristics PCI Express Interface Electrical CharacteristicsPCI Express Interface Driver and Receiver Characteristics PCI Express Interface Test Circuit PCI Express Interface Test Circuit Sata Interface Electrical Characteristics Rlid RlodTJ5 DJ5 18.0 Differential return loss 300 MHz-600 MHz Differential return loss 600 MHz-2.4 GHzDifferential return loss 3.0 GHz-5.0 GHz 275.0 750.0 Differential return loss 150 MHz-300 MHz Low Speed Description Sym bol Min Max Units USB Electrical CharacteristicsUSB Driver and Receiver Characteristics USB Low Speed Driver and Receiver Characteristics Min Max Full Speed Description USB Interface Driver Waveforms USB High Speed Driver and Receiver CharacteristicsHigh Speed Description Symbol Min Max High Speed TX Eye Diagram Pattern Template Thermal Data Preliminary Symbol Definition Airflow Value C/W 0m/s 1m/s 2m/sThermal Data Preliminary Package Hsbga 288-pin Package and Dimensions Hsbga Package Hsbga 288-pin Package DimensionsSymbol Common Dimension Millimeters Package 88F6281 Part Order Options Part Order Numbering/Package MarkingPart Order Numbering 88F6281 -xx-BIA2Cxxx-xxxx Part Order Numbering/Package Marking Package Marking Revision Date Comments Revision History Revision History , Power Pin Assignments, on Revised , Reference Clock AC Timing Specifications, on , Current Consumption, on page 80 added the following January 28 Initial release This page is Intentionally Left Blank Page Marvell. Moving Forward Faster

Pin and Signal Descriptions

1.2.10Real Time Clock (RTC) Interface Pin Assignments

Table 12: RTC Interface Pin Assignments

Pin Name

RTC_XIN

RTC_XOUT

RTC Crystal Clock Feedback