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SRIO Registers

5.32 INTDSTn Interrupt Rate Control Register (INTDSTn_RATE_CNTL)

There are eight interrupt rate control registers, one for each interrupt destination (see Table 85). Figure 93 and Table 86 provide a general description for an interrupt rate control register. These registers are used to set the rate at which an interrupt can be generated for each interrupt destination. A write to one of the registers reloads a counter and immediately starts the counter decrementing. When the counter value reaches 0 (after counting down or after a CPU write of 0), the interrupt logic generates a single interrupt pulse if any bits in the corresponding ICSR are set (or become set after the zero count is reached). For additional programming see Section 4.7.

Table 85. INTDSTn_RATE_CNTL Registers and the Associated Interrupt

Destinations

Register	Address Offset	Associated Interrupt
		Destination
INTDST0_RATE_CNTL	0320h	INTDST0
INTDST1_RATE_CNTL	0324h	INTDST1
INTDST2_RATE_CNTL	0328h	INTDST2
INTDST3_RATE_CNTL	032Ch	INTDST3
INTDST4_RATE_CNTL	0330h	INTDST4
INTDST5_RATE_CNTL	0334h	INTDST5
INTDST6_RATE_CNTL	0338h	INTDST6
INTDST7_RATE_CNTL	033Ch	INTDST7

Figure 93. INTDSTn Interrupt Rate Control Register (INTDSTn_RATE_CNTL)

31

0

COUNT_DOWN_VALUE

R/W-00000000h

LEGEND: R/W = Read/Write; R = Read only; -n= Value after reset

Table 86. INTDSTn Interrupt Rate Control Register (INTDSTn_RATE_CNTL) Field Descriptions

Bit	Field	Value	Description
31–0	COUNT_DOWN_VALUE	00000000h	The value written to this field is immediately transferred to the interrupt
		to	rate counter, which starts counting down (or causes an interrupt if 0 is
		FFFFFFFFh	written).

154

Serial RapidIO (SRIO)

SPRUE13A –September 2006

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Texas Instruments TMS320TCI648x manual INTDSTn Interrupt Rate Control Register INTDSTnRATECNTL, Countdownvalue

Contents

Users Guide Submit Documentation Feedback Contents Errrstevnticsr Port Link Maintenance Request CSR n SP n Lmreq List of Figures INTDSTnRATECNTL Interrupt Rate Control Register Transmit Cppi Supported Flow Mask Registers Port-Write-In Capture CSRs List of Tables PF16BCNTL Registers LSUnREG6 Registers and the Associated LSUs SP n Errdet Registers and the Associated Ports Read This First Trademarks General RapidIO System RapidIO Architectural Hierarchy Overview Physical Layer 1x/4x LP-Serial Specification RapidIO Interconnect Architecture RapidIO Feature Support in Srio Features Supported in Srio Peripheral TI Devices Supported By This Document Features Not SupportedStandards External Devices Requirements TI Devices Supported By This Document Registers Checked for Multicast DeviceID OverviewPeripheral Data Flow Registers Checked For Multicast DeviceID Srio Packets Operation Sequence Operation Sequence Example Packet Streaming Write Control Symbols 4x RapidIO Packet Data Stream Streaming-Write Class Packet Types Srio PinsSrio Packet Type Ftype Ttype Packet Type Functional Operation Component Block DiagramPin Description Srio Component Block Diagram Enabling the PLL Serdes Macro and its ConfigurationsMPY Enpll Bit Field Value Description MPY Frequency Range versus MPY Value Line Rate versus PLL Output Clock FrequencyEffect of the Rate Bits Enabling the Receiver LOS Align Term Invpair Rate Buswidth Enrx CDRBit Field LOS Enabling the Transmitter EQ BitsCFGRX22-19 Amplitude Reduction DE Bits of SERDESCFGTXnCNTLSwing DE Bits Direct I/O Operation Serdes Configuration ExampleSwing Bits of SERDESCFGTXnCNTL Swing Bits LSU Control/Command Register Fields LSU Register Field RapidIO Packet Header Field LSU Register Field Function LSU Status Register FieldsBSY LSU Registers Timing Example Burst Nwriter Detailed Data Path Description Direct I/O TX Operation Write Transactions Read Transactions Segmentation Direct I/O RX Operation Reset and Power Down State Message Passing RX Operation Cppi RX Scheme for RapidIO Message Request Packet Mailbox to Queue Mapping Register H n Rxumaph n RX DMA State Completion Pointer CP Address Offset 680h-6BChMailbox to Queue Mapping Register L n Rxumapl n Bit Name Description RX Buffer Descriptor Field Descriptions Field Description DSP core uses this bit to reclaim buffers RX Cppi Mode Explanation Srio Functional Description Cppi Boundary Diagram TX Operation TX DMA State Completion Pointer CP Address Offset 58h-5BCh TX Buffer Descriptor Field Definitions TX Buffer Descriptor Field Definitions Field Description Ssize Srio Functional Description TXQUEUECNTL2 Address Offset 7E8h TXQUEUECNTL0 Address Offset 7E0hTXQUEUECNTL1 Address Offset 7E4h TXQUEUECNTL3 Address Offset 7ECh TXQUEUECNTL111-8 TXQUEUECNTL13-0TXQUEUECNTL17-4 TXQUEUECNTL23-0 TXQUEUECNTL37-4 TXQUEUECNTL33-0TXQUEUECNTL311-8 Reset and Power Down State RX Operation Message Passing Software RequirementsTX Operation Queue Mapping Initialization ExampleRX Buffer Descriptor RX Buffer Descriptors TX Buffer Descriptor Start Message Passing MaintenanceDoorbell Operation Reg # Examples of Doorbellinfo Designations See FigureInfo Field Segments Bit LSUnREG5 Atomic Operations Congestion Control Detailed Description Flowcntlid FL9 FL8 FL7 FL6 FL5 FL4 FL3 FL2 FL1 FL0 Endianness FL9 Translation for MMR space Endian Conversion TMS320TCI6482 Bus Reset and Power DownReset Hierarchy Logical Block Reset and Power Down Summary Enable and Enable Status Registers Global Enable and Global Enable Status Field Descriptions RegisterBit Field Block Enable and Block Enable Status Field DescriptionsEnstat Valu Description e Peripheral Control Register PCR Field Descriptions Software Shutdown DetailsEmulation Peren Soft Free TX Buffers, Credit, and Packet Reordering Peripheral Control Register PCR Field DescriptionsMultiple Ports With 1x Operation Single Port With 1x or 4x Operation Unavailable Outbound Credit Enabling the Srio Peripheral Port Mode Register Settings13.2 PLL, Ports, Device ID and Data Rate Initializations Peripheral Initializations Set Device ID Registers Configuration and Operation Assert the Peren bit to enable logical layer data flowBootload Capability Read register to check portx1-4 OK bit Device Wakeup Bootload Data MovementRX Multicast Support Enabling Multicast and Packet Forwarding Multicast DeviceID OperationDaisy Chain Operation and Packet Forwarding 16BITDEVIDUPBOUND 16BITDEVIDLOWBOUND 8BITDEVIDUPBOUND OutboundPort 8BITDEVIDLOWBOUND For an LSU or the TXU For the MAU or the RXU Rxiodmaaccess MsgreqtimeoutPktrspnstimeout Unsolicitedrspns CPU Interrupts General Description Interrupt Condition Status and Clear Registers Interrupt Condition Status and Clear Bits Doorbell Interrupt Condition Status and Clear Registers Doorbell 2 Interrupt Condition Status and Clear Registers Cppi Interrupt Condition Status and Clear Registers RX Cppi Interrupt Condition Status and Clear Registers LSU Interrupt Condition Status and Clear Registers LSU3 Bit Associated LSU Interrupt ConditionLSU4 LSU2 ICC11 ICC10 ICC9 ICC8 ICS11 ICS10 ICS9 ICS8ICS2 ICS1 ICS0 ICC2 ICC1 ICC0 Interrupt Function Interrupt Clearing Sequence for Special Event Interrupts1st Step Nd Step 3rd Step Doorbell Interrupt Condition Routing Registers Interrupt Condition Routing RegistersInterrupt Condition Routing Options Interrupt Function St Step Nd Step Rd Step ICR3 ICR2 ICR1 ICR0 Cppi Interrupt Condition Routing RegistersICR7 ICR6 ICR5 ICR4 ICR15 ICR14 ICR13 ICR12 TX Cppi Interrupt Condition Routing Registers LSU Interrupt Condition Routing Registers ICR31 ICR30 ICR29 ICR28 ICR23 ICR22 ICR21 ICR20ICR19 ICR18 ICR17 ICR16 ICR27 ICR26 ICR25 ICR24 Interrupt Status Decode Registers ICR2 ICR1 ICR0 Interrupt Status Decode Register INTDSTnDECODE Interrupt Generation Interrupt Pacing Interrupt Handling INTDSTnRATECNTL Interrupt Rate Control Register 101 Serial RapidIO Srio Registers IntroductionOffset Acronym Register Description Serial RapidIO Srio Registers Offset Acronym Register Description INTDST5DECODE INTDST3DECODEINTDST4DECODE INTDST6DECODE QUEUE1TXDMAHDP QUEUE1RXDMACP QUEUE15RXDMAHDPQUEUE0RXDMACP QUEUE2RXDMACP RXUMAPL8 RXUMAPL7RXUMAPH7 RXUMAPH8 RXUMAPL31 RXUMAPL30RXUMAPH30 RXUMAPH31 SP1CTL SP1SILENCETIMER SpipdiscoverytimerSP0SILENCETIMER SP2SILENCETIMER Type Peripheral Identification Register PIDPeripheral ID Register PID Field Descriptions Class REV Peripheral Control Register PCR Halts Peripheral Settings Control Register Persetcntl Prescalerselect Enable Serdes PLL Peripheral Global Enable Register Gblen Peripheral Global Enable Register Gblen Field Descriptions Peripheral Global Enable Status Register Gblenstat MMRs for the Srio peripheral Block n Enable Register BLKnEN Field Descriptions Block n Enable Register BLKnENBlock n Enable Registers and the Associated Blocks Register Address Offset Associated Block Block n Enable Status Register BLKnENSTAT Block n Enable Status Registers and the Associated Blocks 8BNODEID RapidIO DEVICEID1 Register DEVICEIDREG1RapidIO DEVICEID1 Register DEVICEIDREG1 Field Descriptions 16BNODEID RapidIO DEVICEID2 Register DEVICEIDREG2 RapidIO DEVICEID2 Register DEVICEIDREG2 Field Descriptions PF16BCNTL Registers Register Address Offset Packet Forwarding Register n for 8-Bit Device IDs PF8BCNTLn PF8BCNTL Registers SERDESCFGRXnCNTL Registers and the Associated Ports Register Address Offset Associated Port Via a 50 pF capacitor to Vssa 127 SERDESCFGTX3CNTL SERDESCFGTXnCNTL Registers and the Associated PortsSwing Invpair Rate Buswidth Entx 129 Serdes Macro Configuration Register n SERDESCFGnCNTL SERDESCFGnCNTL Registers and the Associated Ports 131 DOORBELLn Interrupt Condition Status Register DOORBELLnICSR Doorbell nICSR Registers DOORBELLn Interrupt Condition Clear Register DOORBELLnICCR Doorbell nICCR Registers RX Cppi Interrupt Status Register Rxcppiicsr RX Cppi Interrupt Clear Register Rxcppiiccr TX Cppi Interrupt Status Register Txcppiicsr TX Cppi Interrupt Clear Register Txcppiiccr LSU Interrupt Condition Status Register Lsuicsr ICS31 139 140 LSU Interrupt Condition Clear Register Lsuiccr 31-17 Reserved These reserved bits return 0s when read Errrstevnticcr Field Descriptions Doorbell nICRR Registers Field Value Description = 0 to Eight interrupt destinations INTDST0-INTDST7 146 LSU Interrupt Condition Routing Registers LSUICRR0-LSUICRR3 LSU Interrupt Condition Routing Register Field Descriptions = 0 to 2, 8 to 11, Interrupt destinations INTDST0-INTDST7 Interrupt Status Decode Register INTDSTnDECODE Destination TX buffer descriptor queue 4 bit 4 of Txcppiicsr ∙ Doorbell 0, bit 15 bit 15 of DOORBELL0ICSR ISD2 ISD3ISD1 INTDSTn Interrupt Rate Control Register INTDSTnRATECNTL Countdownvalue LSUn Control Register 0 LSUnREG0 Field Descriptions LSUn Control Register 0 LSUnREG0LSUnREG0 Registers and the Associated LSUs Addressmsb LSUnREG1 Registers and the Associated LSUs For packet type 8 maintenance packetLSUn Control Register 1 LSUnREG1 LSUn Control Register 1 LSUnREG1 Field Descriptions LSUn Control Register 2 LSUnREG2 Field Descriptions LSUn Control Register 2 LSUnREG2LSUnREG2 Registers and the Associated LSUs Dspaddress LSUn Control Register 3 LSUnREG3 Field Descriptions LSUn Control Register 3 LSUnREG3LSUnREG3 Registers and the Associated LSUs Bytecount LSUnREG4 Registers and the Associated LSUs LSUn Control Register 4 LSUnREG4LSUn Control Register 4 LSUnREG4 Field Descriptions LSUnREG5 Registers and the Associated LSUs LSUn Control Register 5 LSUnREG5LSUn Control Register 5 LSUnREG5 Field Descriptions LSUn Control Register 6 LSUnREG6 Field Descriptions LSUn Control Register 6 LSUnREG6LSUnREG6 Registers and the Associated LSUs Completioncode BSY LSUn Congestion Control Flow Mask Register LSUnFLOWMASKS LSUnFLOWMASKS Registers and the Associated LSUs LSU n supports Flow 8 from table entry QUEUEnTXDMAHDP Registers Register QUEUEnTXDMACP Registers QUEUEnRXDMAHDP Registers QUEUEnRXDMACP Registers Rxcp Transmit Queue Teardown Register Txqueueteardown Txcppiflowmasks Registers and the Associated TX Queues TX Queue n Flowmask Field Descriptions Queue n supports Flow 12 from table entry Receive Queue Teardown Register Rxqueueteardown Receive Cppi Control Register Rxcppicntl Receive Cppi Control Register Rxcppicntl Field Descriptions TXQUEUECNTL2 Address Offset 07E8h TXQUEUECNTL0 Address Offset 07E0hTXQUEUECNTL1 Address Offset 07E4h TXQUEUECNTL3 Address Offset 07ECh Field Pair TXQUEUECNTL211-8 Mailbox to Queue Mapping Registers RXUMAPLn and RXUMAPHn 0890h Mapper For a multi-segment message LettermaskFor a single-segment message Letter Queueid Segmentmapping Flow Control Table Entry Register n FLOWCNTLn Flowcntl n Registers Deviceidentity Devicevendoridentity Device Identity CAR DevidDevice Identity CAR Devid Field Descriptions Deviceidentity Devicerev Device Information CAR DevinfoDevice Information CAR Devinfo Field Descriptions 31-0 Assyidentity Assyvendoridentity Assembly Identity CAR AsblyidAssembly Identity CAR Asblyid Field Descriptions Assyidentity Extendedfeaturesptr Assembly Information CAR AsblyinfoAssembly Information CAR Asblyinfo Field Descriptions Assyrev Processing Element Features CAR Pefeat Processing Element Features CAR Pefeat Field Descriptions Source and target of an operation. All PEs shall at minimum Source Operations CAR Srcop Source Operations CAR Srcop Field Descriptions Read Write Streamwrite Writewith Datamess Doorbell Destination Operations CAR DestopDestination Operations CAR Destop Field Descriptions Resp Andswap Atomic Addressing Processing Element Logical Layer Control CSR PellctlExtendedaddressingcontrol Lcsba Local Configuration Space Base Address 0 CSR LclcfghbarBit Field Value Local Configuration Space Base Address 1 CSR Lclcfgbar Basedeviceid Base Device ID CSR BaseidBase Device ID CSR Baseid Field Descriptions Largebasedeviceid Host Base Device ID Lock CSR Hostbaseidlock Hostbasedeviceid Component Tag CSR Comptag Field Descriptions Component Tag CSR ComptagComponenttag Efptr Efid Efptr Timeoutvalue Port Link Timeout Control CSR Spltctl Field DescriptionsPort Link Time-Out Control CSR Spltctl Port Response Time-Out Control CSR Sprtctl Port General Control CSR Spgenctl Port General Control CSR Spgenctl Field Descriptions SPnLMREQ Registers and the Associated Ports Port Link Maintenance Request CSR n SPnLMREQCommand SP2LMREQ Port Link Maintenance Response CSR n SPnLMRESP SPnLMRESP Registers and the Associated Ports Port Local AckID Status CSR n SPnACKIDSTAT SPnACKIDSTAT Registers and the Associated Ports Port Error and Status CSR n SPnERRSTAT Field Descriptions Port Error and Status CSR n SPnERRSTATSPnERRSTAT Registers and the Associated Ports Inputerrorenc OutputerrorencOutputerrorstp Inputerrorstp Portok Portuninitialized SPnCTL Registers and the Associated Ports Port Control CSR n SPnCTLPort Control CSR n SPnCTL Field Descriptions Inputportenable PortdisableOutputportenable Errorcheckdisable Rather than a parallel port Error Reporting Block Header Register Errrptbh Logical/Transport Layer Error Detect CSR Errdet RX I/O DMA access error Logical/Transport Layer Error Enable CSR Erren Unsupportedtransenable PktresptimeoutenableUnsolicitedrespenable Rxcppisecurityenable Logical/Transport Layer High Address Capture CSR Haddrcapt ADDRESS6332 ADDRESS313 Logical/Transport Layer Address Capture CSR AddrcaptXamsbs Msbsourceid Sourceid Logical/Transport Layer Device ID Capture CSR IdcaptMsbdestid Destid Msbdestid Impspecific Logical/Transport Layer Control Capture CSR CtrlcaptFtype Ttype Msginfo Ftype Deviceidmsb Port-Write Target Device ID CSR PwtgtidPort-Write Target Device ID CSR Pwtgtid Field Descriptions Deviceid Port Error Detect CSR n SPnERRDET Field Descriptions Port Error Detect CSR n SPnERRDETSPnERRDET Registers and the Associated Ports Linktimeout ProtocolerrorDelineationerror Rcvdpktnotaccpt Port Error Rate Enable CSR n SPnRATEEN Field Descriptions Port Error Rate Enable CSR n SPnRATEENSPnRATEEN Registers and the Associated Ports Linktimeouten ProtocolerrorenDelineationerroren Pktunexpectedackiden Port n Attributes Error Capture CSR 0 SPnERRATTRCAPTDBG0 SPnERRATTRCAPTDBG0 Registers and the Associated Ports Case of a packet error Port n Error Capture CSR 1 SPnERRCAPTDBG1Description Case of a control-symbol error SPnERRCAPTDBG1 Registers and the Associated Ports Port n Error Capture CSR 2 SPnERRCAPTDBG2 SPnERRCAPTDBG2 Registers and the Associated Ports Port n Error Capture CSR 3 SPnERRCAPTDBG3 SPnERRCAPTDBG3 Registers and the Associated Ports Port n Error Capture CSR 4 SPnERRCAPTDBG4 SPnERRCAPTDBG4 Registers and the Associated Ports Port Error Rate CSR n SPnERRRATE Field Descriptions Port Error Rate CSR n SPnERRRATESPnERRRATE Registers and the Associated Ports Port Error Rate Threshold CSR n SPnERRTHRESH SPnERRTHRESH Registers and the Associated Ports Discoverytimer Pwtimer Port IP Mode CSR Spipmode Port IP Mode CSR Spipmode Field Descriptions Pwen RstenRstcs Pwirq Port IP Prescaler Register Ipprescal Field Descriptions Port IP Prescaler Register IpprescalPrescale Port-Write-In Capture CSRs SPIPPWINCAPT0-3 Port-Write-In Capture CSR Field Descriptions SPnRSTOPT Registers and the Associated Ports Port Reset Option CSR n SPnRSTOPTPort Reset Option CSR n SPnRSTOPT Field Descriptions Portid Port Control Independent Register n SPnCTLINDEP SPnCTLINDEP Registers and the Associated Ports Illtranserr SenddbgpktIlltransen Maxretryen SPnSILENCETIMER Registers and the Associated Ports Port Silence Timer n Register SPnSILENCETIMERSilencetimer Multevntcs SPnMULTEVNTCS Registers and the Associated PortsBit Field Value Description 31-0 STYPE0 PAR0 PAR1 STYPE1 CMD Csemb Port Control Symbol Transmit n Register SPnCSTXSPnCSTX Registers and the Associated Ports STYPE0 Index Comptag Ctrlcapt Devinfo Pellctl Haddrcapt Lsuicsr 237 Pefeat 232 Srio Registers Rxcppicntl Rxcppiiccr Rxcppiicrr RXCPPIICRR2 Rxcppiicsr Broken link Degraded link Maximum retry error at port n Txqueueteardown Xoff Xon Important Notice