Texas Instruments TMS320TCI648x instruction

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SRIO Registers

5.70 Port Link Maintenance Response CSR n (SPn_LM_RESP)

Each of the four ports is supported by a register of this type (see Table 142). The port link maintenance response CSR n (SPn_LM_RESP) is shown in Figure 133 and described in Table 143.

Table 142. SPn_LM_RESP Registers and the Associated Ports

Register	Address Offset	Associated Port
SP0_LM_RESP	1144h	Port 0
SP1_LM_RESP	1164h	Port 1
SP2_LM_RESP	1184h	Port 2
SP3_LM_RESP	11A4h	Port 3

		Figure 133. Port Link Maintenance Response CSR n (SPn_LM_RESP)
31	30					16
RESPONSE_				Reserved
VALID				Reserved
VALID
R-0				R-0
15		10	9	5	4	0
	Reserved			ACKID_STATUS		LINK_STATUS
	R-0			R-0		R-0

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

Table 143. Port Link Maintenance Response CSR n (SPn_LM_RESP) Field Descriptions

Bit	Field	Value	Description
31	RESPONSE_VALID		If the link-request causes a link-response, this bit indicates that the
			link-response has been received and the status fields are valid. If the
			link-request does not cause a link-response, this bit indicates that the
			link-request has been transmitted. This bit automatically clears on read.
30–10	Reserved	0	These read-only bits return 0s when read.
9–5	ACKID_STATUS	00000b–11111b	AckID status field from the link-response control symbol
4–0	LINK_STATUS	00000b–11111b	Link status field from the link-response control symbol

SPRUE13A –September 2006	Serial RapidIO (SRIO)	201
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Texas Instruments TMS320TCI648x manual Port Link Maintenance Response CSR n SPnLMRESP

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 RapidIO Architectural Hierarchy General RapidIO System Overview RapidIO Interconnect Architecture Physical Layer 1x/4x LP-Serial Specification Features Supported in Srio Peripheral RapidIO Feature Support in Srio Standards External Devices Requirements Features Not SupportedTI Devices Supported By This Document TI Devices Supported By This Document Peripheral Data Flow OverviewRegisters Checked for Multicast DeviceID Registers Checked For Multicast DeviceID Operation Sequence Srio Packets Example Packet Streaming Write Operation Sequence 4x RapidIO Packet Data Stream Streaming-Write Class Control Symbols Srio Packet Type Srio PinsPacket Types Ftype Ttype Packet Type Component Block Diagram Functional OperationPin Description Srio Component Block Diagram Serdes Macro and its Configurations Enabling the PLLMPY Enpll MPY Bit Field Value Description Effect of the Rate Bits Line Rate versus PLL Output Clock FrequencyFrequency Range versus MPY Value Enabling the Receiver CDR LOS Align Term Invpair Rate Buswidth EnrxBit Field LOS EQ Bits Enabling the TransmitterCFGRX22-19 Swing DE Bits of SERDESCFGTXnCNTLAmplitude Reduction DE Bits Swing Bits of SERDESCFGTXnCNTL Serdes Configuration ExampleDirect I/O Operation Swing Bits LSU Register Field RapidIO Packet Header Field LSU Control/Command Register Fields LSU Status Register Fields LSU Register Field FunctionBSY LSU Registers Timing Detailed Data Path Description Example Burst Nwriter Write Transactions Direct I/O TX Operation Read Transactions Direct I/O RX Operation Segmentation Message Passing Reset and Power Down State Cppi RX Scheme for RapidIO RX Operation Message Request Packet Mailbox to Queue Mapping Register L n Rxumapl n RX DMA State Completion Pointer CP Address Offset 680h-6BChMailbox to Queue Mapping Register H n Rxumaph n Bit Name Description Field Description RX Buffer Descriptor Field Descriptions DSP core uses this bit to reclaim buffers RX Cppi Mode Explanation Srio Functional Description TX Operation Cppi Boundary Diagram TX Buffer Descriptor Field Definitions TX DMA State Completion Pointer CP Address Offset 58h-5BCh Field Description TX Buffer Descriptor Field Definitions Ssize Srio Functional Description TXQUEUECNTL1 Address Offset 7E4h TXQUEUECNTL0 Address Offset 7E0hTXQUEUECNTL2 Address Offset 7E8h TXQUEUECNTL3 Address Offset 7ECh TXQUEUECNTL17-4 TXQUEUECNTL13-0TXQUEUECNTL111-8 TXQUEUECNTL23-0 TXQUEUECNTL33-0 TXQUEUECNTL37-4TXQUEUECNTL311-8 Reset and Power Down State Message Passing Software Requirements RX OperationTX Operation Initialization Example Queue MappingRX Buffer Descriptor TX Buffer Descriptor RX Buffer Descriptors Maintenance Start Message PassingDoorbell Operation Info Field Segments Examples of Doorbellinfo Designations See FigureReg # Bit LSUnREG5 Congestion Control Atomic Operations Detailed Description FL9 FL8 FL7 FL6 FL5 FL4 FL3 FL2 FL1 FL0 Flowcntlid FL9 Endianness Endian Conversion TMS320TCI6482 Translation for MMR space Reset Hierarchy Reset and Power DownBus Logical Block Enable and Enable Status Registers Reset and Power Down Summary Global Enable and Global Enable Status Field Descriptions Enstat Block Enable and Block Enable Status Field DescriptionsRegisterBit Field Valu Description e Emulation Software Shutdown DetailsPeripheral Control Register PCR Field Descriptions Peren Soft Free Peripheral Control Register PCR Field Descriptions TX Buffers, Credit, and Packet ReorderingMultiple Ports With 1x Operation Unavailable Outbound Credit Single Port With 1x or 4x Operation Port Mode Register Settings Enabling the Srio Peripheral13.2 PLL, Ports, Device ID and Data Rate Initializations Set Device ID Registers Peripheral Initializations Bootload Capability Assert the Peren bit to enable logical layer data flowConfiguration and Operation Read register to check portx1-4 OK bit Bootload Data Movement Device WakeupRX Multicast Support Daisy Chain Operation and Packet Forwarding Multicast DeviceID OperationEnabling Multicast and Packet Forwarding 16BITDEVIDUPBOUND 16BITDEVIDLOWBOUND Port Outbound8BITDEVIDUPBOUND 8BITDEVIDLOWBOUND For the MAU or the RXU For an LSU or the TXU Pktrspnstimeout MsgreqtimeoutRxiodmaaccess Unsolicitedrspns General Description CPU Interrupts Interrupt Condition Status and Clear Registers Doorbell Interrupt Condition Status and Clear Registers Interrupt Condition Status and Clear Bits Cppi Interrupt Condition Status and Clear Registers Doorbell 2 Interrupt Condition Status and Clear Registers LSU Interrupt Condition Status and Clear Registers RX Cppi Interrupt Condition Status and Clear Registers LSU4 Bit Associated LSU Interrupt ConditionLSU3 LSU2 ICS2 ICS1 ICS0 ICS11 ICS10 ICS9 ICS8ICC11 ICC10 ICC9 ICC8 ICC2 ICC1 ICC0 Interrupt Clearing Sequence for Special Event Interrupts Interrupt Function1st Step Nd Step 3rd Step Interrupt Condition Routing Options Interrupt Condition Routing RegistersDoorbell Interrupt Condition Routing Registers Interrupt Function St Step Nd Step Rd Step ICR7 ICR6 ICR5 ICR4 Cppi Interrupt Condition Routing RegistersICR3 ICR2 ICR1 ICR0 ICR15 ICR14 ICR13 ICR12 LSU Interrupt Condition Routing Registers TX Cppi Interrupt Condition Routing Registers ICR19 ICR18 ICR17 ICR16 ICR23 ICR22 ICR21 ICR20ICR31 ICR30 ICR29 ICR28 ICR27 ICR26 ICR25 ICR24 ICR2 ICR1 ICR0 Interrupt Status Decode Registers Interrupt Status Decode Register INTDSTnDECODE Interrupt Pacing Interrupt Generation INTDSTnRATECNTL Interrupt Rate Control Register Interrupt Handling 101 Introduction Serial RapidIO Srio RegistersOffset Acronym Register Description Offset Acronym Register Description Serial RapidIO Srio Registers INTDST4DECODE INTDST3DECODEINTDST5DECODE INTDST6DECODE QUEUE1TXDMAHDP QUEUE0RXDMACP QUEUE15RXDMAHDPQUEUE1RXDMACP QUEUE2RXDMACP RXUMAPH7 RXUMAPL7RXUMAPL8 RXUMAPH8 RXUMAPH30 RXUMAPL30RXUMAPL31 RXUMAPH31 SP1CTL SP0SILENCETIMER SpipdiscoverytimerSP1SILENCETIMER SP2SILENCETIMER Peripheral ID Register PID Field Descriptions Peripheral Identification Register PIDType Class REV Halts Peripheral Control Register PCR Peripheral Settings Control Register Persetcntl Prescalerselect Enable Serdes PLL Peripheral Global Enable Register Gblen Field Descriptions Peripheral Global Enable Register Gblen Peripheral Global Enable Status Register Gblenstat MMRs for the Srio peripheral Block n Enable Registers and the Associated Blocks Block n Enable Register BLKnENBlock n Enable Register BLKnEN Field Descriptions Register Address Offset Associated Block Block n Enable Status Registers and the Associated Blocks Block n Enable Status Register BLKnENSTAT RapidIO DEVICEID1 Register DEVICEIDREG1 Field Descriptions RapidIO DEVICEID1 Register DEVICEIDREG18BNODEID 16BNODEID RapidIO DEVICEID2 Register DEVICEIDREG2 Field Descriptions RapidIO DEVICEID2 Register DEVICEIDREG2 Register Address Offset PF16BCNTL Registers PF8BCNTL Registers Packet Forwarding Register n for 8-Bit Device IDs PF8BCNTLn Register Address Offset Associated Port SERDESCFGRXnCNTL Registers and the Associated Ports Via a 50 pF capacitor to Vssa 127 SERDESCFGTXnCNTL Registers and the Associated Ports SERDESCFGTX3CNTLSwing Invpair Rate Buswidth Entx 129 SERDESCFGnCNTL Registers and the Associated Ports Serdes Macro Configuration Register n SERDESCFGnCNTL 131 Doorbell nICSR Registers DOORBELLn Interrupt Condition Status Register DOORBELLnICSR Doorbell nICCR Registers DOORBELLn Interrupt Condition Clear Register DOORBELLnICCR RX Cppi Interrupt Status Register Rxcppiicsr RX Cppi Interrupt Clear Register Rxcppiiccr TX Cppi Interrupt Status Register Txcppiicsr TX Cppi Interrupt Clear Register Txcppiiccr ICS31 LSU Interrupt Condition Status Register Lsuicsr 139 140 LSU Interrupt Condition Clear Register Lsuiccr 31-17 Reserved These reserved bits return 0s when read Errrstevnticcr Field Descriptions Field Value Description Doorbell nICRR Registers = 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 Destination Interrupt Status Decode Register INTDSTnDECODE TX buffer descriptor queue 4 bit 4 of Txcppiicsr ∙ Doorbell 0, bit 15 bit 15 of DOORBELL0ICSR ISD3 ISD2ISD1 Countdownvalue INTDSTn Interrupt Rate Control Register INTDSTnRATECNTL LSUnREG0 Registers and the Associated LSUs LSUn Control Register 0 LSUnREG0LSUn Control Register 0 LSUnREG0 Field Descriptions Addressmsb LSUn Control Register 1 LSUnREG1 For packet type 8 maintenance packetLSUnREG1 Registers and the Associated LSUs LSUn Control Register 1 LSUnREG1 Field Descriptions LSUnREG2 Registers and the Associated LSUs LSUn Control Register 2 LSUnREG2LSUn Control Register 2 LSUnREG2 Field Descriptions Dspaddress LSUnREG3 Registers and the Associated LSUs LSUn Control Register 3 LSUnREG3LSUn Control Register 3 LSUnREG3 Field Descriptions Bytecount LSUn Control Register 4 LSUnREG4 LSUnREG4 Registers and the Associated LSUsLSUn Control Register 4 LSUnREG4 Field Descriptions LSUn Control Register 5 LSUnREG5 LSUnREG5 Registers and the Associated LSUsLSUn Control Register 5 LSUnREG5 Field Descriptions LSUnREG6 Registers and the Associated LSUs LSUn Control Register 6 LSUnREG6LSUn Control Register 6 LSUnREG6 Field Descriptions Completioncode BSY LSUnFLOWMASKS Registers and the Associated LSUs LSUn Congestion Control Flow Mask Register LSUnFLOWMASKS LSU n supports Flow 8 from table entry Register QUEUEnTXDMAHDP Registers QUEUEnTXDMACP Registers QUEUEnRXDMAHDP Registers Rxcp QUEUEnRXDMACP Registers 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 Field Descriptions Receive Cppi Control Register Rxcppicntl TXQUEUECNTL1 Address Offset 07E4h TXQUEUECNTL0 Address Offset 07E0hTXQUEUECNTL2 Address Offset 07E8h TXQUEUECNTL3 Address Offset 07ECh Field Pair TXQUEUECNTL211-8 Mailbox to Queue Mapping Registers RXUMAPLn and RXUMAPHn 0890h Mapper For a single-segment message LettermaskFor a multi-segment message Letter Segmentmapping Queueid Flowcntl n Registers Flow Control Table Entry Register n FLOWCNTLn Device Identity CAR Devid Field Descriptions Device Identity CAR DevidDeviceidentity Devicevendoridentity Deviceidentity Device Information CAR Devinfo Field Descriptions Device Information CAR DevinfoDevicerev 31-0 Assembly Identity CAR Asblyid Field Descriptions Assembly Identity CAR AsblyidAssyidentity Assyvendoridentity Assyidentity Assembly Information CAR Asblyinfo Field Descriptions Assembly Information CAR AsblyinfoExtendedfeaturesptr Assyrev Processing Element Features CAR Pefeat Field Descriptions Processing Element Features CAR Pefeat Source and target of an operation. All PEs shall at minimum Source Operations CAR Srcop Field Descriptions Source Operations CAR Srcop Destination Operations CAR Destop Field Descriptions Destination Operations CAR DestopRead Write Streamwrite Writewith Datamess Doorbell Resp Andswap Atomic Processing Element Logical Layer Control CSR Pellctl AddressingExtendedaddressingcontrol Local Configuration Space Base Address 0 CSR Lclcfghbar LcsbaBit Field Value Local Configuration Space Base Address 1 CSR Lclcfgbar Base Device ID CSR Baseid Field Descriptions Base Device ID CSR BaseidBasedeviceid Largebasedeviceid Hostbasedeviceid Host Base Device ID Lock CSR Hostbaseidlock Component Tag CSR Comptag Component Tag CSR Comptag Field DescriptionsComponenttag Efptr Efptr Efid Port Link Timeout Control CSR Spltctl Field Descriptions TimeoutvaluePort Link Time-Out Control CSR Spltctl Port Response Time-Out Control CSR Sprtctl Port General Control CSR Spgenctl Field Descriptions Port General Control CSR Spgenctl Command Port Link Maintenance Request CSR n SPnLMREQSPnLMREQ Registers and the Associated Ports SP2LMREQ SPnLMRESP Registers and the Associated Ports Port Link Maintenance Response CSR n SPnLMRESP SPnACKIDSTAT Registers and the Associated Ports Port Local AckID Status CSR n SPnACKIDSTAT Port Error and Status CSR n SPnERRSTAT Port Error and Status CSR n SPnERRSTAT Field DescriptionsSPnERRSTAT Registers and the Associated Ports Outputerrorstp OutputerrorencInputerrorenc Inputerrorstp Portuninitialized Portok Port Control CSR n SPnCTL SPnCTL Registers and the Associated PortsPort Control CSR n SPnCTL Field Descriptions Outputportenable PortdisableInputportenable 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 Unsolicitedrespenable PktresptimeoutenableUnsupportedtransenable Rxcppisecurityenable ADDRESS6332 Logical/Transport Layer High Address Capture CSR Haddrcapt Logical/Transport Layer Address Capture CSR Addrcapt ADDRESS313Xamsbs Msbdestid Destid Logical/Transport Layer Device ID Capture CSR IdcaptMsbsourceid Sourceid Msbdestid Ftype Ttype Msginfo Logical/Transport Layer Control Capture CSR CtrlcaptImpspecific Ftype Port-Write Target Device ID CSR Pwtgtid Field Descriptions Port-Write Target Device ID CSR PwtgtidDeviceidmsb Deviceid Port Error Detect CSR n SPnERRDET Port Error Detect CSR n SPnERRDET Field DescriptionsSPnERRDET Registers and the Associated Ports Delineationerror ProtocolerrorLinktimeout Rcvdpktnotaccpt Port Error Rate Enable CSR n SPnRATEEN Port Error Rate Enable CSR n SPnRATEEN Field DescriptionsSPnRATEEN Registers and the Associated Ports Delineationerroren ProtocolerrorenLinktimeouten Pktunexpectedackiden SPnERRATTRCAPTDBG0 Registers and the Associated Ports Port n Attributes Error Capture CSR 0 SPnERRATTRCAPTDBG0 Description Case of a control-symbol error Port n Error Capture CSR 1 SPnERRCAPTDBG1Case of a packet error SPnERRCAPTDBG1 Registers and the Associated Ports SPnERRCAPTDBG2 Registers and the Associated Ports Port n Error Capture CSR 2 SPnERRCAPTDBG2 SPnERRCAPTDBG3 Registers and the Associated Ports Port n Error Capture CSR 3 SPnERRCAPTDBG3 SPnERRCAPTDBG4 Registers and the Associated Ports Port n Error Capture CSR 4 SPnERRCAPTDBG4 Port Error Rate CSR n SPnERRRATE Port Error Rate CSR n SPnERRRATE Field DescriptionsSPnERRRATE Registers and the Associated Ports SPnERRTHRESH Registers and the Associated Ports Port Error Rate Threshold CSR n SPnERRTHRESH Pwtimer Discoverytimer Port IP Mode CSR Spipmode Field Descriptions Port IP Mode CSR Spipmode Rstcs RstenPwen Pwirq Port IP Prescaler Register Ipprescal Port IP Prescaler Register Ipprescal Field DescriptionsPrescale Port-Write-In Capture CSR Field Descriptions Port-Write-In Capture CSRs SPIPPWINCAPT0-3 Port Reset Option CSR n SPnRSTOPT Field Descriptions Port Reset Option CSR n SPnRSTOPTSPnRSTOPT Registers and the Associated Ports Portid SPnCTLINDEP Registers and the Associated Ports Port Control Independent Register n SPnCTLINDEP Illtransen SenddbgpktIlltranserr Maxretryen Port Silence Timer n Register SPnSILENCETIMER SPnSILENCETIMER Registers and the Associated PortsSilencetimer SPnMULTEVNTCS Registers and the Associated Ports MultevntcsBit Field Value Description 31-0 SPnCSTX Registers and the Associated Ports Port Control Symbol Transmit n Register SPnCSTXSTYPE0 PAR0 PAR1 STYPE1 CMD Csemb 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