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ARM ARM DUI 0224I Memory Card Interface, MCI, MMC or SD operation, 17 MMC/SD interface signals

Models: ARM DUI 0224I

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Hardware Description

3.14Memory Card Interface, MCI

Two ARM PL180 PrimeCell MCIs provide the interface to two multimedia (MMC) or Secure Digital (SD) cards.

Each interface can be driven as either an MMC or SD interface.

3.14.1MMC or SD operation

The MMC socket provides nine pins that connect to the card when it is inserted into the socket. (The nine-way socket is compatible with SD cards. However MMC uses only seven of the nine pins.)

The socket contains two switches that are operated by inserting or removing the card. These are used to provide signaling on the nCARDIN and WPROT signals.

The function of the interface signals depends on whether an MMC or SD card is fitted. Both card types default to MMC but the SD card has an additional operating mode called widebus mode. Table 3-17 shows the use of the signals for both modes of operation.

	Table 3-17 MMC/SD interface signals

Signal	Widebus mode (SD only)	MMC mode (default)

MCIxDAT3	card detect/Data(3)	chip select (active LOW)

MCIxCMD	command/Response	command/Response

MCIxCLK	clock	clock

MCIxDAT0	data (0)	data

MCIxDAT1	data (1)	not used

MCIxDAT2	data (2)	not used

nCARDINx	card presence detect (active LOW)	card presence detect (active LOW)

WPROTx	card write-protection detect	card write-protection detect

ARM DUI 0224I

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ARM ARM DUI 0224I manual Memory Card Interface, MCI, MMC or SD operation, 17 MMC/SD interface signals

Contents

RealView Platform Baseboard for ARM926EJ-S Copyright 2003-2010 ARM Limited. All rights reserved RealView Platform Baseboard for ARM926EJ-SUser Guide Product Status Conformance Notices RealView Platform Baseboard for ARM926EJ-S User Guide Chapter Programmer’s Reference Appendix B Specifications Appendix G Configuring the USB Debug Connection List of Tables Sysmisc VFP9 implementation 100 Xii List of Figures Syssw Sysled Sysbootcs Sysmisc Figure D-4 Jtag signal flow on the PCI backplane Feedback on PrefaceAbout this manual Using this manualProduct revision status Intended audienceTypographical ConventionsTiming diagrams Numbering SignalsARM publications Further readingXxiii TFT-LCD Module LQ084V1DG21 Sharp Corporation, Osaka, Japan Other publicationsFeedback on this manual FeedbackFeedback on this product Xxvi Introduction On page 1-3 shows the layout of the PB926EJ-S About the PB926EJ-SPB926EJ-S layout PB926EJ-S architecture Field Programmable Gate-Array Fpga that implements Time of year clock with backup batteryShows the architecture of the PB926EJ-S System architecture3 PB926EJ-S Fpga 2 ARM926EJ-S PXP Development ChipDisplays RealView Logic Tile expansionDebug and test interfaces MemoryClock generators Preventing damage PrecautionsEnsuring safety ARM DUI Getting Started Setting up the RealView Platform Boot memory configuration Setting the configuration switchesDefault switch positions Selecting the boot deviceSwitch Default Function in default position S1-2 S1-1 DeviceLists the PB926EJ-S LED indicators and their function LED indicatorsLED Indicators Color Device FunctionLED ID Boot Monitor configuration Jtag connection Connecting Jtag debugging equipmentUSB debug port connection Example of MultiTrace and Jtag connection Connecting the Trace Port AnalyzerExample of RealView ICE and RealView Trace Trace connector and adaptor board About using tracePower connectors Supplying powerBoot Monitor commands Using the PB926EJ-S Boot Monitor and platform libraryRunning the Boot Monitor Command Action Lists the commands for the Boot MonitorBoot Monitor commands Boot Monitor Debug commands Lists the commands for the Debug subsystemBoot Monitor Configure commands Boot Monitor NOR flash commands Lists the commands for the NOR Flash subsystemBoot Monitor NOR flash commands CommandAction Rebuilding the Boot MonitorGetting Started For RealView DebuggerFrom the Debug menu → Include Commands Loading Boot Monitor into NOR flashRedirecting character output to hardware devices Rebuilding the platform library Building an application with the platform library Load region in flash Loading and running an application from NOR flashUsing a boot script to run an image automatically ARM DUI Interrupts on Fpga onDMA on Hardware Description 1 ARM926EJ-S PXP Development Chip overview ARM926EJ-S PXP Development ChipARM926EJ-S PXP Development Chip block diagram This high-performance, low-power Vector Floating-Point VFP Embedded Trace Macrocell ETM provides signals for off-chipARM926EJ-S CPU is a member of the ARM9 Thumb family. ARM926EJ-S r0p3 macrocell is a 32-bit cached processor withMemory controllers Synchronous serial port Configuration controlConfiguration switches Configuration signals from SYSCFGDATAx Configuration from the DEV Chip Reconfig pushbuttonAHB bridges and the bus matrix Restoring the default configurationSimultaneous access Example of multiple masters AHB map Core APB and DMA APB map Memory devices Memory interfaceAHB monitor connection AHB monitorShows the architecture of the Fpga on the PB926EJ-S FpgaFor details on Fpga components, see Fpga configurationFpga image 1 this is the image supplied with the board Localdone Globaldone Hardware Description Reset and reconfiguration logic Reset controller11 PB926EJ-S reset logic Default values Reset levelMemory Registers Peripherals12 Reset signal sequence 13 Programmable reset level See -4 on page 3-29 for a description of the reset signalsNSTATICCS1 if one of BOOTCSSEL10 is not b11 Memory aliasing at reset14 Boot memory remap logic Describes reset signals Reset signalsReset signal descriptions Name FunctionNPBSDCRECONFIG NPBRESETNPLLRESET NPORESETUsbwakeup 15 Power-on reset and configuration timing Reset timingPower supply control 16 Standby switch and power-supply control Clock domains for the PB926EJ-S are shown in Figure Clock architectureARM926EJ-S PXP Development Chip Clock domains for the PB926EJ-S areSignal nGLOBALCLKEN from Z50 on the Logic Tile indicates to Where it can be used as the CPU clock for low-power modeTiming the Ethernet bus. HCLKM2 typically generated from Controller interface to the FpgaARM DUI 18 ARM926EJ-S PXP Development Chip internal multiplexors 1 ARM926EJ-S PXP Development Chip clocksLists the clock signals Xtalclkdrv Default operationHCLKM2, HCLKS, PLLCLKEXT, GLOBALCLK, Xtalclkext19 Default clock sources and frequencies Example of changing the CPU and bus clock frequencies XtalclkextOperating the AHB bridges in asynchronous mode 20 Clock sources for asynchronous AHB bridges HCLKM1M2F HCLKCTRL70HCLKM2M2F HCLKSMF2FHclkctrl signal HCLKM1 driven by Default value of HCLKCTRL70 is 0xE0Hclkctrl signal HCLKM2 driven by HCLKM1 selectionICS307 programmable clock generators Hclkctrl signal Hclks driven byHclks selection HCLKSL2S and HCLKSL2F from tileClcdclkext Selecting slow start Selecting the low-frequency clocks in power-saving modePeripheral clocks XTALCLK/GLOBALCLK driven by RealView Logic Tile clocks10 Globalclk selection 22 Example of selecting a tile clock for the AHB S bridge Clock multiplexor logic 23 Clock multiplexors Characteristic Value 12 Audio system specificationAdvanced Audio Codec Interface, Aaci PCMNo link Passive microphone on CODECMIC1 and CODECMIC2 Pin number Signal name Description 13 AC’97 audio debug signals on J45Character LCD controller 25 Character display Clcdc interface 26 Display interface Chip Reference Manual for interface details Signal Description 14 Display interface signalsDMA 27 DMA channels 15 DMA signals for external devices USBETHD310 Ethernet interfaceUSBETHA82 TPO+ , TPOAbout the Smsc LAN91C111 ARM DUI Gpio interface 29 Gpio block diagram30 External and internal interrupt sources InterruptsHardware Description Keyboard/Mouse Interface, KMI 31 KMI block diagramSignal Widebus mode SD only MMC mode default 17 MMC/SD interface signalsMemory Card Interface, MCI MMC or SD operationCard interface description Card insertion and removal32 MMI interface MCIPWRx 18 MMC signalsCARDINx MCIxDAT3033 PCI bridge PCI interfaceSerial bus interface 20 Serial bus signals19 Serial bus addresses Slave address Slave device Bit SbsclSmart Card interface, SCI 35 SCI block diagram SCICLKINx SCIDATAIN0, SCICLKIN0, and SCIDETECT0 signals.NSCICLKENx SCICLKOUTxSynchronous Serial Port, SSP 36 SSP block diagramName Description 22 SSP signal descriptionsARM DUI 37 Switch and LED interface User switches and LEDsUart interface 38 UARTs block diagram SERxTXD NDRVINEN0SERxRTS SERxDTR a23 Serial interface signal assignment USB interface 41 OTG243 block diagramSignal name Direction Description 24 USB interface signal assignmentTest, configuration, and debug interfaces 42 Test and debug connectors, links, and LEDs Jtag and USB debug port support Jtag debug normal modeJtag configuration mode Name Description Function Jtag signals25 Jtag related signals Rtck 25 Jtag related signals Name Description FunctionReturn TCK NCFGENNRTCKEN Dbgack43 Jtag connector signals 44 Jtag signal routing 45 RealView Logic Tile Jtag circuitry Embedded trace support ChipScope integrated logic analyzerMBX on Ethernet onUart on Timers on4KB Memory mapSdram Peripheral Location Interrupt a PIC Address Region SIC Size Memory mapPIC Vectored Interrupt Controller PICUart 0 Interface Dev. chip PIC SIC PCI2GB ARM Data bus memory map Remapping of boot memory Configuration and initializationRemoving boot remapping and enabling Sdram at Switch is ON, the corresponding Bootcssel signal is HighEnable Sdram at Simplified version of the remap logic is shown in -14 onProgrammer’s Reference Booting from NOR flash Booting from NOR flashBooting from static expansion memory Booting from static expansion memoryBooting from AHB expansion Booting from AHB expansion memoryMemory characteristics Memory banks Status and system control registers Name Address Accessa Reset Description Level Register map for system control registers Applycfgword active ID Register, Sysid bit assignment Bits Access Description Switch Register, SysswID Register, Sysid Describes the PB926EJ-S ID Register assignmentSysled LED Register, SysledShows the bit assignment of the registers Oscillator registers, SYSOSCxDescribes the PB926EJ-S Lock Register bit assignment Lock Register, Syslock6 100Hz Counter, SYS100HZ Configuration registers SYSCFGDATAxBits Power-on Description Reset state Configuration registerHigh PLL feedback see ARM926EJ-S PXP Development Chip clocks on CFGHCLKEXTDIVSEL20, clock controlHIGH, then expansion memory is aliased to Flag registers, SYSFLAGx and SYSNVFLAGx Register name Address Access Reset by DescriptionFlag and Nonvolatile Flag Registers Flag and Nonvolatile Flag Set Registers11 Reset level control Reset Control Register, SysresetctlBits Access Description PCI Control Register, SyspcictlClcd Control Register, Sysclcd Flash Control Register, Sysflash12 MCI control 13 Flash control14 Sysclcd register 14 Sysclcd15 Sysclcdser register Boot Select Register, Sysbootcs14 2.2 inch LCD Control Register Sysclcdser 16 Boot configuration switches 16 SysbootcsPnINTA LOW 16 24MHz Counter, SYS24MHZMiscellaneous System Control Register, Sysmisc SYS DMAPSR1 Name Address Access DescriptionDMA peripheral map registers, SYSDMAPSRx = USB a 19 shows the bit assignment of the registers Oscillator reset registers, SYSOSCRESETxOscillator test registers, SYSTESTOSCx 20 Oscillator test registers Name Address Access Description21 AHB monitor implementation AHB monitorProperty Value DMA22 Aaci implementation PrimeCell Modifications23 Modified Aaci PeriphID3 register Bit Access Description24 Character LCD display implementation Character LCD displayChardat CharcomCharrd CharmaskCommand Bit Description Pattern An overview of the commands available is listed in Table26 Character LCD display commands 27 Clcdc implementation Color LCD Controller, Clcdc28 PrimeCell Clcdc register differences Display resolutions and display memory organizationChip VGAEpson 2.2in panel Qcif 10MHz, 0x2C2A Svga 800x600 on Svga 36MHz, 0x2CACSanyo 3.8in panel Qvga 10MHz, 0x2C2A 320x240ARM DUI CLD22 CLD23CLD21 CLD2032 Dmac implementation Direct Memory Access Controller and mapping registers33 DMA channels DMA Requester 33 shows the DMA channel allocation34 DMA mapping register format 21 SYSDMAP0-2 mapping register format35 Ethernet implementation EthernetGpio General Purpose Input/Output, Gpio36 Gpio implementation 37 VIC Primary Interrupt Controller implementation Interrupt controllers38 SIC implementation FpgaDmana Primary interrupt controller38 SIC implementation PropertyValue Bit Interrupt source a Description 40 Interrupt signals to primary interrupt controllerVICINTSOURCE31 External interrupt from secondary controllerMBX GNDPwrfail ClcdSecondary interrupt controller Bit Interrupt Description Source 42 Interrupt signals to secondary interrupt controllerHandling interrupts Example 4-1 Clearing and re-enabling SCI0 card out interrupt Example 4-3 Clearing and re-enabling SCI1 card out interrupt Example 4-2 Pseudo code for SIC SCI1 card out interruptSCI1IMSC SCI1CARDOUTIM KMI Keyboard and Mouse Interface, KMI43 KMI implementation 44 MBX implementation 13 MBXMove video coprocessor 45 MCI implementation MultiMedia Card Interfaces, MCIx46 Mpmc implementation MultiPort Memory Controller, MpmcRegister values Address Register name Value Description Offset 47 Sdram register valuesMpmcclkout runs SDRAM32M16BRCX32+0x144 MPMCDynamicRasCas2 Dmac PCI controller48 PCI controller implementation Control registers Address Name Access Description50 PCI controller registers PCIIMAPx registersMap register formats are shown in -25 and -54 on Pciflags register Pciselfid registerBits Description 52 Pciselfid register formatPCISMAPx registers 54 PCISMAPx register format PCI configurationMap register format is shown in -29 and Table Locating the self-config header table Address Configuration word function Default Offset Value 57 PCI configuration space headerConfiguring the PCI interface Limitations of the PCI interface Interrupt Acknowledge Ignored Not available 59 RTC implementation Real Time Clock, RTCSbcontrol 60 Serial bus implementation Property ValueSbcontrols SbcontrolcDynamic expansion E2PROM 63 SCI implementation ARM PrimeCell Synchronous Serial Port Controller PL022 Register, Sysclcd on 65 Ssmc implementation Synchronous Static Memory Controller, SsmcAddress Name of Ssmc Value Description Register 67 Register values for Intel flash, async page mode68 Register values for Samsung Sram SMBWSTWENR4 SMBWSTOENR4SMBCR4 SMBWSTBRDR4See also Status and system control registers on System Controller72 Timer implementation Timers73 Uart implementation UartPrimeCell Modifications Address Description 74 USB implementation76 VFP9 implementation Vector Floating Point, VFP977 Watchdog implementation Watchdog102 Signal Descriptions Table A-1 SSP signal assignment Signals associated with the SSP are shown in Table A-1Signal name Description Synchronous Serial Port interfaceSmart Card interface Pin Signal DescriptionSignal Pin Signal name Table A-3 Signals on expansion connectorPB926EJ-S provides four serial transceivers Table A-4 Serial plug signal assignmentTop Bottom SER1DTR a SER2DTR a SER3DTR aFigure A-5 shows the USB connectors Audio Codec interface Figure A-6 Audio connectorsFigure A-7 MMC/SD card socket pin numbering MMC and SD flash card interfaceTable A-5 lists the signal assignments Clcd display interface Table A-6 Clcd Interface board connector J18 Pin SignalClle GND Clac Clcp Cllp Clfp LCDID0PWR3V5VSWITCH Vlcd Vddposswitch Vddnegswitch ClpowerLCDID2 Tsmiso LCDID3 Tsmosi LCDID4 Lcdxwr GND LCDSD0 Lcdxrd LcdxcsFigure A-9 Clcd Interface connector J18 VGA display interface Table A-7 VGA connector signals Pin DescriptionEach data pin has an on-board 10KΩ pullup resistor to Figure A-11 Gpio connectorKeyboard and mouse interface Table A-8 Mouse and keyboard port signal descriptionsKeyboard KMI0, J24 Mouse KMI1, J23 Pin Signal Function Pin Signals on the Ethernet cable are shown in Table A-9Table A-9 Ethernet signals Pin Signal Figure A-14 HDRX, HDRY, and Hdrz upper pin numbering RealView Logic Tile header connectorsTable A-10 Hdrx J9 signals Platform signal Tile Pin Signal Hdrx signalsPlatform signal Tile Pin Signal Table A-10 Hdrx J9 signalsHBUSREQM2 SmcancelwaitHCLKM1DRVL2S HWRITEM2HDATAM28 HDATAM27HDATAM29 HDATAM210Hdry signals Platform signal Tile signal Pin Signal Table A-11 Hdry J12 signalsHreadys HRESPS0Hmastlocks HselsLtclcp HDATAS5HDATAS6 LtclleHdrz Table A-12 Hdrz J8 signalsPlatform signal Tile signal Pin EXPSMADDR16 EXPSMADDR15EXPSMADDR17 EXPSMADDR18Table A-12 Hdrz J8 signals Platform signal Tile signal Pin Clknegdnin Ctdi BOOTCSSEL7 FpgaimageHCLKM1RESF2L Clkposupout Dtdoin Dtdoout HCLKSRESF2L ClknegupoutEXPSMDATAS2 EXPSMDATAS1EXPSMDATAS3 EXPSMDATAS4HBURSTM10 EXPSMDATAS26EXPSMDATAS27 HPROTM13HDATAM112 HADDRM119HADDRM120 HDATAM111Test and debug connections Figure A-15 Test points and debug connectorsThis section contains the following subsections Test point Signal FunctionJtag on page A-36 Overview of test pointsIntclk SCIDATAOUTTDD0REFCLK1 SPARE2USB debug port JtagTable A-14 Trace connector J14 Channel Pin Trace connector pinoutFigure A-19 AMP Mictor connector Figure A-18 Embedded logic analyzer connector J33Table A-15 AHB monitor connector J17 Channel Pin Table A-16 Fpga debug connector J39 Channel Pin Fpga debug connector pinoutSpecifications Table B-1 shows the PB926EJ-S electrical characteristics Electrical specificationBus interface characteristics Powered from J34 or PCI bus Powered from DCCurrent requirements Table B-2 Current requirements from DC System Typical MaxLoading on supply voltage rails Clock rate restrictions Default clock rates for reliable operation areAHB bus timing HRESETn inputHwrite , HTRANS10 , HSIZE20 , HBURST20 , HTRANS10 , HSIZE20 , HBURST20 , and write dataPeripheral timing Memory timingSspclk ClcdclkScirefclk Figure B-1 shows the mechanical outline of the PB926EJ-S Mechanical detailsARM DUI Clcd Display and Adaptor Board Connectors on page C-15About the Clcd display and adaptor board Figure C-1 Clcd adaptor board connectors bottom viewFigure C-2 Small Clcd enclosure Figure C-3 Large Clcd enclosure Clcd Display and Adaptor Board Figure C-5 Clcd adaptor board connection Installing the Clcd displayLCD power control ConfigurationTDK CXA-L0612VJLSwitchedvddneg Fixedswitch Invio Switchedfixed Clpower SwitchedvddposSwitchedvddneg Figure C-6 Clcd buffer and power supply control links Touchscreen interface architecture Touchscreen controller interfaceVBAT21 AUX21Touch Touchscreen controller programmer’s interface SSP and Tsci ConfigurationExample C-1 SSP to Tsci interface setup Example C-2 Configuring and reading the Tsci interface Table C-4 Clcd interface connector J2 Pin Signal ConnectorsInterface connector Table C-5 LCD prototyping connector J1 Signal Pin LCD prototyping connectorInverter prototyping connector Touchscreen prototyping connectorAUX1 GND AUX2 VBAT1 VBAT2 5 A/D and keypad connectorTable C-8 A/D and keypad J13 Signal Pin Figure C-9 Clcd adaptor board mechanical layout Mechanical layoutARM DUI PCI Backplane and Enclosure Connecting the PB926EJ-S to the PCI enclosure PCI Backplane and Enclosure A socket, the socket is bypassed by an automatic switch Setting the backplane configuration switchesFigure D-2 Multiple boards on PCI bus Connecting two PB926EJ-S boardsFigure D-3 PCI backplane Backplane hardwareCLK33ACTIVE Table D-1 LED indicatorsCLK66ACTIVE CLK133ACTIVESwitch Signal Description Table D-2 Configuration switchesTable D-3 Power and reset switches Test point Signal DescriptionFigure D-4 Jtag signal flow on the PCI backplane Table D-5 ATX power connector Signal Pin Power connector3V3 12V NPSONChannel Pin Logic analyzer connectorTable D-6 Mictor connector pinout Signals on the Jtag connector J5 are shown in Figure D-6 Jtag connectorTable D-6 Mictor connector pinout Channel Pin SPARE4Memory Expansion Boards About memory expansion Figure E-1 Dynamic memory board block diagramOperation without expansion memory Memory board configurationWidth Memory width selection on the static memory boardTable E-1 Memory width encoding Fitting a memory board Figure E-3 Memory board installation locationsEeprom contents Function Address Value Offset Table E-2 Chip Select information blockFigure E-4 Chip select information block Address Contents OffsetEXPnCS memory device string CS6 access time in 0.1ps LSB Address Contents Example contents DYCS3 memory size in bytes Expansion connector Connector pinoutDATA1 DATA0DATA2 DATA3ADDR2 ADDR3 ADDR4 ADDR5 ADDR6 ADDR7 ADDR8 ADDR9 ADDR0ADDR1 Pin No Signal Table E-6 Static memory connector signalsNRAS NCASVddio a Table E-6 Static memory connector signals Pin No SignalNCS4 ADDR2NCS3 NCS2ADDR17 ADDR15 NCS0 ADDR16NIRQ ADDR18Figure E-6 Dynamic memory board layout RealView Logic Tile About the RealView Logic Tile Figure F-2 RealView Logic Tile fitted on PB926EJ-S Fitting a RealView Logic TileHeader connectors Figure F-3 HDRX, HDRY, and Hdrz upper pin numbering Variable I/O levelsFigure F-4 RealView Logic Tile tristate for I/O RealView Logic Tile I/ORealView Logic Tile clocks Table F-1 RealView Logic Tile clock signals RealView Logic Tile ARM AHB M1 AHB buses used by the Fpga and RealView Logic TilesExample RealView Logic Tile implementation AHB SFigure F-6 Bus signals for RealView Logic Tile and Fpga DnTRST pulse ResetConfiguring the USB Debug Connection Installing the RealView Developer Suite Installing the RealView ICE Micro Edition driverSelect Specify a location Installing the RealView ICE Micro Edition driver on WindowsConfiguring the USB Debug Connection Figure G-1 Nodes added to Connection Control window Changes to RealView DebuggerFigure G-2 The Connection Control window Using the USB debug port to connect RealView DebuggerFigure G-3 ARM926EJ-S PXP Development Chip detected Figure G-5 Error shown when no devices are detected Configuring the USB Debug Connection There are three groups of settings Using the Debug tab of the RealView Debugger Register paneFalse Global PropertiesTrue JtagclocktypeDevice Properties Semihosting Properties ARM DUI AHB Uart AaciJtag MCIDMA KMI ReconfigLCD LEDTCM SYS ResetctlMove Uart SCIXtalclkdrv SSP Uart