VME Geographical Address Register Vgar | Motorola MVME2300 Series

ISA Local Resource Bus

VME Geographical Address Register (VGAR)

The VME Geographical Address register is an 8-bit read-only register located at ISA I/O address x1006. This register reflects the states of the geographical address pins at the P1 connector.

REG		VME Geographical Address Register - Offset $1006

BIT	SD7	SD6	SD5	SD4	SD3	SD2	SD1	SD0

FIELD			GAP#	GA4#	GA3#	GA2#	GA1#	GA0#

OPER				READ ONLY

RESET	X	X	X	X	X	X	X	X

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Emulated Z8536 CIO Registers and Port Pins

Although MVME2300 series boards do not use a Z8536 device, several of its functions are emulated within an ISA Register PLD. These functions are accessed by reading/writing the Port A, B, C Data registers and Control register. Note that the Pseudo IACK function is not implemented in the MVME2300 series.

Emulated Z8536 Registers

The MVME2300 series implements the Z8536 CIO functions according to the following table.

Table 1-20. Emulated Z8536 Access Registers

PCI I/O Address	Function

0000 0844	Port C’s Data Register

0000 0845	Port B’s Data Register

0000 0846	Port A’s Data Register

0000 0847	Control Register

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Image 67

Motorola MVME2300 Series manual Emulated Z8536 CIO Registers and Port Pins, VME Geographical Address Register Vgar

Contents

MVME2300 Series VME Processor Module Programmer’s Reference GuidePage Safety Summary Instructions Flammability CE Notice European Community Limited and Restricted Rights Legend Contents Raven PCI Bridge Asic Page Page Falcon ECC Memory Controller Chip Set Universe VMEbus to PCI Chip Chapter Page List of Figures Page List of Tables Xviii 64MB ECC Dram Model Memory Processor16MB ECC Dram 32MB ECC Dram Date Description of Change Summary of Changes Comments and Suggestions Overview of Contents Ctrl Conventions Used in This ManualBold Enter, Return or CR Xxiii Xxiv Overview Introduction ECC Dram Summary of FeaturesFeatures MVME2300 Series Feature MVME2300 Scsa I/O System Block Diagram Board Description and Memory Maps MVME2300 Series System Block Diagram VMEbus Interface Functional DescriptionFront Panel P2 I/O Programming ModelPCI interface Processor Memory Maps Processor Address Size Definition Start End Default Processor Memory Map Chrp Memory Map Example Processor Chrp Memory Map Address Register Name Register Value Raven MPC Register Values for Chrp Memory Map Prep Memory Map Example Processor Prep Memory MapBfff Ffff Raven MPC Register Values for Prep Memory Map PCI Configuration Access PCI Address Size Definition Start End Default PCI Memory MapPCI Memory Maps PCI Chrp Memory Map FC03 Ffff Raven PCI Register Values for Chrp Memory Map Configuration Register Value Address Offset Register NameUniverse PCI Register Values for Chrp Memory Map 10. PCI Prep Memory Map PCI Prep Memory Map 3AFE Ffff 38FF Ffff39FE Ffff 39FF Ffff 11. Raven PCI Register Values for Prep Memory Map 12. Universe PCI Register Values for Prep Memory Map VMEbus Master Map VMEbus Mapping VMEbus Slave Map VMEbus Slave Mapping VSI0TO VSI0CTLVSI0BS VSI0BD 15. System Register Summary VMEbus Address Size Chrp Map Prep Map Range ModeFalcon-Controlled System Registers 14. VMEbus Slave Map Example Sysclk Value System Clock Speed PCI Clock Speed System Configuration Register SyscrSystem Configuration Register $FEF80400 $FD P0/1STAT Value Processor 0/1 Present External In-line Cache MSIZE01 Total Memory On Board Memory Configuration Register MemcrMemory Configuration Register $FEF80404 MSIZE01 RA/BTYP02 MSPD01L2TYPE03 PLL Value Size L2PLL03FLSHP02 System External Cache Control Register Sxccr CPU Control Register $FEF88300 Processor 0 External Cache Control Register P0XCCRProcessor 1 External Cache Control Register P1XCCR CPU Control Register Uart Access RegistersISA Local Resource Bus W83C553 PIB Registers General-Purpose Readable Jumpers NVRAM/RTC and Watchdog Timer Registers PCI I/O Address Function Module Configuration and Status Registers17. M48T59/559 Access Registers 18. Module Configuration and Status Registers SD7 SD6 SD5 SD4 SD3 SD2 SD1 SD0 CPU Configuration RegisterOld CPU Configuration Register $FE000800 Cputype Base Module Feature Register Offset $0802 Base Module Feature RegisterPcixp PMC2P PMC1P Vmep Lanp Basetype Base Module Status Register BmsrBasetype Base Module Status Register Offset $0803 SD9 SD8 SD7 SD6 SD5 SD4 SD3 SD2 SD1 SD0 VME RegistersSeven-Segment Display Register Segment Display Register Offset $08C0 SETSIG0 19. VME RegistersLM/SIG Control Register SETSIG1 LM/SIG Status Register Board Description and Memory Maps Location Monitor Lower Base Address Register Offset $1003 Location Monitor Upper Base Address RegisterLocation Monitor Lower Base Address Register Location Monitor Upper Base Address Register Offset $1002 Semaphore Register 2 Offset $1005 Semaphore RegisterSemaphore Register 1 Offset $1004 SEM1 Emulated Z8536 Registers Emulated Z8536 CIO Registers and Port Pins20. Emulated Z8536 Access Registers VME Geographical Address Register Vgar Port Signal Direction Descriptions Pin Name Z8536 CIO Port Pins21. Z8536 CIO Port Pin Assignments PC2 BASETYP0 ISA DMA ChannelsPC3 BASETYP1 Page Features of the Raven Asic FeaturesFunction Features Block Diagram Raven Block Diagram MPC Address Mapping MPC Bus Interface MPC-to-PCI Address Decoding MPC Slave MPC to PCI Address Translation MPC Transfer Type Transaction Encoding Command Types MPC Slave Response MPC Master MPC Write Posting MPC Transfer Types PCI Command CodeMPC Transfer Type MPC Transfer Size TT0-TT4 MPC Arbiter MPC Bus Timer PCI Address Mapping Configuration Registers PCI to MPC Address Decoding MPC Bus Address Space Decoder Priority RavenMPIC Control Registers PCI Slave Addressing Command TypesCommand Types PCI Slave Response Command Type Slave Response? Fast Back-to-Back Transactions Exclusive AccessDevice Selection Target-Initiated Termination PCI Master ParityCache Support PCI Write Posting Transfer Type PCI Master Command CodesPCI Command Entity Addressed Master Initiated Termination Combining, Merging, and Collapsing Arbitration Latency ArbitrationAddress/Data Stepping Generating PCI Memory and I/O Cycles Generating PCI CyclesPCI Cycle Type PCI Spread I/O Address Translation Generating PCI Configuration Cycles Functional Description Device Number Address Bit Generating PCI Special Cycles Endian Conversion When MPC Devices are Big-EndianGenerating PCI Interrupt Acknowledge Cycles Big- to Little-Endian Data Swap Data Address Length Bytes Modification When MPC Devices are Little-EndianRaven Registers and Endian Mode Address Modification for Little-Endian Transfers Error Handling Perr Error Status Error Address AttributesTransaction Ordering SMA MPC Registers Raven Registers Raven MPC Register Map Venid Vendor ID/Device ID RegistersDevid Revision ID. Identifies the Raven revision level. This General Control-Status/Feature RegistersRevision ID Register Revid Mpic FlbrdBhog Marb Feat MIDxCurrent MPC Data Bus Master MPC Arbiter Control Register Prescaler Adjust RegisterOperation Reset $00 Operation Reset $00 $B4 Matom MPC Error Enable Register Perri SmamRtam Matoi OVF MPC Error Status RegisterMato RTA Writing it to a 0 has no effect. When the Smam bitSMA PCI transaction. The bit may be cleared by writing it to a TTx MPC Error Attribute Register MeratWhich originated the transfer in which the error occurred Register Designates a selected byte Address $FEFF0030 Bit Name Operation Reset $0000PCI Interrupt Acknowledge Register Piack MPC Slave Address 3 Register Operation Reset $8000 $8080Start END WEN MPC Slave Offset/Attribute 0,1 and 2 RegistersMSOFFx REN IOM WpenMSOFF3 PCI Registers Cycles. When clear, the corresponding MPC slave will $8C Raven PCI Configuration Register Map$0C $18 $7F Offset $00 Bit Name Operation Reset $4801 $1057Raven PCI I/O Register Map $CF8 PCI Command/ Status Registers Rcvta DparSeltim Sigta Space Revision ID/ Class Code RegistersClass Base Register PRE RESIoba IO/MEM PCI Slave Address 0,1,2 and 3 Registers To access MPC bus resources. The value of this field willBe compared with the upper 16 bits of the incoming PCI GBL PCI Slave Attribute/ Offset 0,1,2 and 3 RegistersINV Transfer type code which specifies the current transaction Perspective from the MPC bus in Big-Endian mode Configaddress RegisterConceptual perspective from the PCI bus DEV Perspective from the MPC bus in Little-Endian modeREG FUN Configdata Register EN EnableBUS Data ‘B’ Data ‘C’ Data ‘D’ Operation Reset Data ‘D’ Data ‘C’ Data ‘B’ Data ‘A’ Operation Reset Raven Interrupt Controller FeaturesArchitecture Interrupt Source Priority Readability of CSRProcessor’s Current Task Priority Compatibility Nesting of Interrupt EventsSpurious Vector Generation Interprocessor Interrupts IPI Timers Raven-Detected Errors Interrupt Delivery Modes Raven Interrupt Controller Block Diagram Description Interrupt Pending Register IPR Program-Visible RegistersInterrupt Selector is Interrupt Request Register IRR In-Service Register ISRInterrupt Router Raven PCI Bridge Asic Off Mpic RegistersRavenMPIC Registers 10. RavenMPIC Register Map $010F0 $010E0$011E0 $100F0 $100E0 $101F0 $101E0 Ncpu Feature Reporting RegisterVID Offset $01020 Bit Name Global Configuration Register Processor Init Register Processor 1. Writing a 1 to P1 will assert the Soft ResetVendor Identification Register STP Prior IPI Vector/Priority RegistersMask ACT Offset $010E0 Bit Name Spurious Vector RegisterInterrupt Acknowledge register is read during a spurious Vector fetch Timer Base Count Registers Timer Current Count Registers Bit transitions from a 1 to a 0, the value is copied into Count Inhibit. Setting this bit to 1 inhibits counting forThis timer. Setting the bit to 0 allows counting to proceed Base Count. This field contains the 31-bit count for this Timer Destination Registers Sense Setting this bit to a 0 enables active low or negative edgeExternal Source Vector/Priority Registers POL External Source Destination Registers Offset $10200 Bit Name Raven-Detected Errors Vector/Priority Register Offset $10210 Bit Name Raven-Detected Errors Destination Register Offset Processor $20080 $21080 Bit Name End Of Interrupt. There is one EOI register per Zero is assumed. Writing to this register signals the endInterrupt Acknowledge Registers End-of-Interrupt Registers Programming Notes External Interrupt Service Reset State Interprocessor Interrupts Dynamically Changing I/O Interrupt Configuration Current Task Priority Level EOI RegisterInterrupt Acknowledge Register Mode Architectural Notes Page Dram Features of the Falcon Chip Set Falcon Pair Used with Dram in a System Block Diagrams Falcon Internal Data Paths Simplified Overall Dram Connections Performance Bit Ordering ConventionFour-beat Reads/Writes Dram Speeds Single-beat Reads/Writes Beat PowerPC 60x Bus to Dram Access Timing 70ns Page DevicesClock Periods Required For Total Access Type 2nd 3rd 4th 2nd 3rd 4th Clocks Beat PowerPC 60x Bus to Dram Access Timing 60ns Page Devices PowerPC Bus to Dram Access Timing 50ns Hyper Devices ROM/Flash Speeds Cache Coherency PowerPC 60x Bus InterfaceResponding to Address Transfers Completing Data Transfers L2 Cache Support Cache Coherency RestrictionsCycle Types Single-Bit Error Reporting Dram Tester Error LoggingROM/Flash Interface Functional Description $XXFFFFFB $7FFFFF $XXFFFFF8 $7FFFFC$XXFFFFF9 $7FFFFD $XXFFFFFA $7FFFFE $X3FFFFF3 $7FFFFE $X3FFFFF0 $7FFFFE$X3FFFFF1 $7FFFFE $X3FFFFF2 $7FFFFE Blocks a and/or B Present, Blocks C and D Not Present Refresh/Scrub Blocks a and/or B Present, Blocks C and/or D Present Dram Arbitration Chip Defaults External Register Set CSR AccessesCSR Architecture Data Path for Reads from the Falcon Internal CSRs Data Path for Writes to the Falcon Internal CSRs Memory Map for Byte Reads to CSR 1906 Memory Map for 4-Byte Reads to CSR Detailed Register Bit Descriptions Register Summary 10. Register Summary Test D3 Lower 32 Bits Programming Model Address $FEF80000 Bit Name Vendor/Device Register Read Zero Read only Revision ID/ General Control Register 11. ram spd1,ram spd0 and Dram Type Ram spd0,ram spd1Ram spd0, ram spd1 Dram Speed Dram Type Ram a/b/c/d en Dram Attributes RegisterRam a/b/c/d siz0-2 SIMM/DIMM BlockA/B/C/D ConfigurationsRam a/b/c/d Block Size Devices Used Technology Comments 0MB CLK Frequency Dram Base RegisterRAM A/B/C/D Base CLK Frequency Register Read Zero ECC Control RegisterRefdis Rwcb 11707.00 Falcon ECC Memory Controller Chip Set Mcken TienSien Mien Elog Embt Esen Address $FEF80038 Bit Name Error Address Register 13. rtest Encodings Rtest0,rtest1,rtest2 Test Mode selected Address $FEF80048 Bit Name Refresh/Scrub Address Register 1Mbyte of Block a also appears at $FFF00000 ROM a Base 1MB 14. ROM Block a Size Encoding15. romarv and rombrv Encoding Rom a siz Block Size Cycle Transfer Alignment Romx64 Romxwe Falcon Response 16. Read/Write to ROM/Flash ROM B Base ROM B Base/Size Register1Mbyte of Block B also appears at $FFF00000 Rom b siz Block Size 17. ROM Block B Size Encoding Has been programmed properly. Notice that CTR32 is Dram Tester Control RegistersBit Counter CTR32 is a 32-bit, free-running counter that increments Address $FEF80400 Bit Name Power-Up Reset Status RegisterAddress $FEF80500 Bit Name Address $FEF88000 $FEF8FFF8 Bit Name External Register Set Writing to the Control Registers Parity Checking on the PowerPC BusSoftware Considerations Programming ROM/Flash Devices Sizing Dram Software Considerations ROW 19. PowerPC 60x Address to Dram Address Mappings18. Sizing Addresses 1024MB 256MB 128MB 64MB 32MB 16MB ECC Codes 20. Syndrome Codes Ordered by Bit in ErrorBit Syndrome 20. Syndrome Codes Ordered by Bit in Error $AF $CF $EF 21. Single-Bit Errors Ordered by Syndrome Code Data Paths 10. PowerPC Data to Dram Data Correspondence 22. PowerPC Data to Dram Data Mapping Page Universe VMEbus to PCI Chip − BLT, ADOH, RMW, Lock Features of the Universe Asic Block Diagram Universe as VMEbus Slave Architectural Diagram for the Universe Universe as VMEbus Master PCI Bus Interface Universe as PCI Slave Universe as PCI Master Interrupter VMEbus Interrupt Handling DMA Controller Universe Control and Status Registers Ucsr Ucsr Access Mechanisms Universe Register Map Offset Register Name LSI3BS LSI2BSLSI2BD LSI2TO Linten DcppDgcs Dllue VSI2BS VSI0BD F0CVSI1BS F1C VSI2CTL F2C Description Universe Chip Problems after PCI Reset Method Workarounds Examples Example 1 MVME2600 Series Board Exhibits PCI Reset Problem Example 2 MVME3600 Series Board Acts Differently Run the init code and the LSI0 registers become Example 3 Universe Chip is Checked at Tundra Universe VMEbus to PCI Chip PIB PCI ArbitrationPCI Arbitration Assignments Pci Bus Request PCI Masters MVME2300 Series Interrupt Architecture Interrupt Handling Level RavenMPICRavenMPIC Interrupt Assignments Edge Polarity Interrupt Source IRQ14 InterruptsIRQ15 PIB Interrupt Handler Block Diagram Edge PIB PCI/ISA Interrupt Assignments ISA DMA Channels Reset switch Sources of ResetExceptions Devices Affected Soft ResetReset Sources and Devices Affected Sources of Reset Error Notification and Handling Error Notification and HandlingCause Action Big-Endian Mode Endian Issues Little-Endian Mode PCI/Ethernet Processor/Memory DomainRole of the Raven Asic PCI Domain VMEbus Domain Role of the Universe AsicPCI-Graphics Default Mapping for FFF00000-FFFFFFFF ROM/Flash Bank DefaultROM/Flash Initialization Page Document Title Publication Number Motorola Computer Group Documents Document Title and Source Publication Number Manufacturers’ Documents EK-DE500-OM MPCFPE/AD ANSI/IEEE Related SpecificationsIEC 821 BUS Isbn MPR-PPC-RPU-02TIA/EIA-232 Page Glossary O S S a R Y Enhanced Integrated Drive Electronics. An improved version PCI. Used in the reference platform specification. IBM IBM Computers developed by the IBM Corporation. PowerPC is Signal Computing System Architecture. a hardware model for See 10base-2 Page Index PCI 1-13 processor IN-3 PCI MPC IN-5 Configaddress 2-56CONFIGDATA IN-7 IN-8