TX Buffer Descriptor, Ndp | Texas Instruments TMS320C645x specification

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SRIO Functional Description

Figure 24. RX Buffer Descriptor

Descriptor

Buffer

Descriptor

Buffer

Rx

Pointer

Port State

TX Buffer Descriptor

TX_DESCP0_0->TXDESC0 =	CSL_FMK(	SRIO_TXDESC0_N_POINTER,(int )TX_DESCP0_1 );
	//link to TX_DESCP0_1
	//NDP
TX_DESCP0_0->TXDESC1 =	CSL_FMK( SRIO_TXDESC1_B_POINTER,(int )&xmtBuff1[0] );
	//Buffer Pointer
TX_DESCP0_0->TXDESC2 =	CSL_FMK( SRIO_TXDESC2_DESTID, 0xBEEF)
	CSL_FMK( SRIO_TXDESC2_PRI, 1)
	CSL_FMK( SRIO_TXDESC2_TT, 1)
	CSL_FMK( SRIO_TXDESC2_PORTID, 3)
	CSL_FMK( SRIO_TXDESC2_SSIZE, SSIZE_256B)
	CSL_FMK( SRIO_TXDESC2_MAILBOX, 0);
TX_DESCP0_0->TXDESC3 =	CSL_FMK( SRIO_TXDESC3_SOP,1 )
	CSL_FMK( SRIO_TXDESC3_EOP,1 )
	CSL_FMK( SRIO_TXDESC3_OWNERSHIP,1 )
	CSL_FMK( SRIO_TXDESC3_EOQ,1 )
	CSL_FMK( SRIO_TXDESC3_TEARDOWN,0 )
	CSL_FMK( SRIO_TXDESC3_RETRY_COUNT,0 )
	CSL_FMK( SRIO_TXDESC3_CC,0 )
	CSL_FMK( SRIO_TXDESC3_MESSAGE_LENGTH,MLEN_512DW );
TX_DESCP0_1->TXDESC0 =	CSL_FMK( SRIO_TXDESC0_N_POINTER, 0);
	//end of message
	//poll mode, extended address type 2,5,6
TX_DESCP0_1->TXDESC1 =	CSL_FMK( SRIO_TXDESC1_B_POINTER,(int )&xmtBuff2[0] );
	//32bit = type 2,5,6. 24bit = type 8
TX_DESCP0_1->TXDESC2 =	CSL_FMK( SRIO_TXDESC2_DESTID, 0xBEEF)
	CSL_FMK( SRIO_TXDESC2_PRI, 1)
	CSL_FMK( SRIO_TXDESC2_TT, 1)
	CSL_FMK( SRIO_TXDESC2_PORTID, 3)
	CSL_FMK( SRIO_TXDESC2_SSIZE, SSIZE_256B)
	CSL_FMK( SRIO_TXDESC2_MAILBOX, 1);
TX_DESCP0_1->TXDESC3 =	CSL_FMK( SRIO_TXDESC3_SOP,1 )
	CSL_FMK( SRIO_TXDESC3_EOP,1 )
	CSL_FMK( SRIO_TXDESC3_OWNERSHIP,1 )
	CSL_FMK( SRIO_TXDESC3_EOQ,1 )
	CSL_FMK( SRIO_TXDESC3_TEARDOWN,0 )
	CSL_FMK( SRIO_TXDESC3_RETRY_COUNT,0 )
	CSL_FMK( SRIO_TXDESC3_CC,0 )
	CSL_FMK( SRIO_TXDESC3_MESSAGE_LENGTH,MLEN_512DW );

SPRU976 –March 2006

Serial RapidIO (SRIO)

57

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Texas Instruments TMS320C645x manual TX Buffer Descriptor, Ndp

Contents

Users Guide Submit Documentation Feedback Contents Errrstevnticrr Base Device ID CSR Baseid List of Figures Load/Store Module Interrupt Condition Routing Registers 150 Port Error Rate Threshold CSR n SP n Errthresh List of Tables LSUn Control Register 0 LSUnREG0 Field Descriptions Base Device ID CSR Baseid Field Descriptions Read This First RapidIO Architectural Hierarchy General RapidIO System Overview 3 1x/4x LP-Serial RapidIO Interconnect Architecture Features Supported in Srio RapidIO Feature Support in Srio Standards Features Not SupportedExternal Devices Requirements RapidIO Documents and Links Peripheral Data Flow Overview Operation Sequence Srio Packets Example Packet Streaming Write Operation Sequence 4x RapidIO Packet Data Stream Streaming-Write Class Control Symbols Srio Packet Ftype/Ttype Packet TypeFtype Ttype Packet Type Block Diagram Srio PinsFunctional Operation Pin Description Srio Conceptual Block Diagram Enabling the PLL Serdes and its ConfigurationsBits of Serdescfg nCNTL Register 0x120 0x12c Bit Name Value Description Bits of Serdescfg nCNTL Register 0x120 0x12c Line Rate versus PLL Output Clock FrequencyRate Bit Effects Frequency Range versus MPY Enabling the ReceiverBits of Serdescfgrx nCNTL Registers Disabled. Loss of signal detection disabled Bits of SERDESCFGRXnCNTL RegistersBit Field Value Description 1514 Enabling the Transmitter EQ BitsBits of Serdescfgtx nCNTL Registers CFGRX2219 Low Freq Gain Bits of Serdescfgtx nCNTL Registers Swing BitsDE Bits DirectIO Serdes Configuration Example RapidIO Packet Header Field Control/Command Register Field Mapping Status Fields Control/Command Register RapidIO Packet Header FieldStatus Field Function BSY LSU Registers Timing Detailed Data Path Description Example Burst Nwriter Write Transactions TX Operation Read Transactions RX Operation Segmentation Message Passing Reset and Power Down State Cppi RX Scheme for RapidIO Queue Mapping Table Address Offset 0x0800 0x08FC Bit Name Description Queue Mapping Register Rxumapl n RX Buffer Descriptor Fields Field Description RX Buffer Descriptor Field Descriptions Field Description RX Buffer Descriptor Field Descriptions RX Cppi Mode Explanation Cppi Boundary Diagram TX Buffer Descriptor Field Definitions TX Buffer Descriptor Fields Uses this bit to reclaim buffers Ssize TXQUEUECNTL0- Address Offset 0x7E0 Name Bit Access Reset Value DescriptionTXQUEUECNTL1- Address Offset 0x7E4 TXQUEUECNTL2- Address Offset 0x7E8 TXQueueMap10 2316 0x0A Detailed Data Path Description Message Passing Software Requirements RX OperationTX Operation Initialization Example Queue MappingRX Buffer Descriptor NDP TX Buffer Descriptor Start Message Passing Maintenance Doorbell Operation Doorbell Detailed Description Congestion Control Name Bit Transmit Source Flow Control Masks Endianness Configuration Bus Example DMA Example Reset Reset Summary Enable and Enable Status RegistersBLK8ENSTA BLK7ENSTA Enstat Enable and Enable Status Bit Field DescriptionsGblen BLK0EN BLK1ENSTAT BLK1ENBLK2EN BLK2ENSTAT Emulation Software Shutdown DetailsBLK8ENSTAT Peren Soft Free Emulation Control Signals Enabling the Srio PeripheralsPeren 11.2 PLL, Ports, Device ID and Data Rate Initializations Peripheral InitializationsSet Device ID Registers Read register to check portx1-4 OK bit Assert the Peren bit to enable logical layer data flow Configuration Bootload CapabilityBootload Data Movement Device Wakeup ERR MSG REQ General Description CPU Interrupts Interrupt Condition Control Registers Interrupt Source Configuration Options Where ICS0 Doorbell1, bit 0, through ICS15 Doorbell1, bit Interrupt Conditions LSU Interrupt Condition Clear Registers Iccr Address Offset ICS2 ICS1 ICS0 ICS11 ICS10 ICS9 ICS8ICC11 ICC10 ICC9 ICC8 ICC2 ICC1 ICC0 DOORBELL0ICRR2 Address Offset Interrupt Condition Routing Options LSUICRR1 Address Offset 0x02E4 LSUICRR2 Address Offset 0x02E8LSUICRR3 Address Offset 0x02EC ERRRSTEVNTICRR2 Address Offset 0x02F4 Interrupt Status Decode RegistersERRRSTEVNTICRR3 Address Offset 0x02F8 ICR2 ICR1 ICR0 Sharing of Isdr Bits Interrupt Generation Interrupt PacingISDR3 ISDR2 ISDR1 ISDR9 ISDR8 ISDR7 ISDR6 ISDR5 ISDR4 ISDR0 INTDSTnRATECNTL Interrupt Rate Control Register Interrupt Handling Interrupt Conditions Introduction Serial Rapid IO Srio RegistersOffset Acronym Register Description Offset Acronym Register Description Serial Rapid IO Srio Registers Errrstevntic LSUICRR3RR2 RR3 LSU3REG1 QUEUE2TXDMAC QUEUE1TXDMACQUEUE3TXDMAC QUEUE4TXDMAC QUEUE12RXDMA SKS6 TxcppiflowmaSKS7 Rxqueuetear RXUMAPH18 RXUMAPL18RXUMAPL19 RXUMAPH19 Asblyinfo AsblyidPefeat Srcop PTDBG0 SP0ERRATTRCASP0ERRCAPTDB SP0ERRRATE SP3ERRRATE TimerSP3ERRTHRESH Spipdiscovery Peripheral ID Register PID Field Descriptions Peripheral Identification Register PIDType Class REV Peripheral Control Register PCR Field Descriptions Peripheral Control Register PCRPere Soft Free Bit Field Peripheral Settings Control Register Persetcntl 1XMODE CbatransprPrescalerse Lect ENPLL3 ENPLL2ENPLL1 Peripheral Global Enable Register Gblen Field Descriptions Peripheral Global Enable Register Gblen GBL Peripheral Global Enable Status Register GblenstatENS TAT Block n Enable Register BLKnEN Field Descriptions Block n Enable Register BLKnEN Block n Enable Status Register BLKnENSTAT 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 Packet Forwarding Register n for 16b DeviceIDs PF16BCNTLn Packet Forwarding Register n for 8b DeviceIDs PF8BCNTLn Term Invpa Rate Buswidth CDR LOS Align CFGRX2219 Low Freq Gain Zero Freq at e28 min Enft Swing Invpa Rate BuswidthEntx DE Bits Swing BitsCFGTX119 Amplitude mV dfpp CFGTX1512 Amplitude Reduction MPY Enpll Serdes Macro Configuration Register n SERDESCFGnCNTLRIOCLK/RIOCLK MPY DOORBELLn Interrupt Status Register DOORBELLnICSR DOORBELLn Interrupt Status Register DOORBELLnICSR DOORBELLn Interrupt Clear Register DOORBELLnICCR DOORBELLn Interrupt Clear Register DOORBELLnICCR RX Cppi Interrupt Status Register Rxcppiicsr RX Cppi Interrupt Status Register Rxcppiicsr RX Cppi Interrupt Clear Register Rxcppiiccr RX Cppi Interrupt Clear Register Rxcppiiccr TX Cppi Interrupt Status Register Txcppiicsr TX Cppi Interrupt Status Register Txcppiicsr TX Cppi Interrupt Clear Register Txcppiiccr TX Cppi Interrupt Clear Register Txcppiiccr LSU Status Interrupt Register Lsuicsr LSU Status Interrupt Register Lsuicsr Field DescriptionsICS31-0 Load/Store module interrupt condition status bits LSU Clear Interrupt Register LSU Iccr LSU Clear Interrupt Register LSU Iccr Field DescriptionsICS31-0 Load/Store module interrupt clear bits 31-17 126 DOORBELLn Interrupt Condition Routing Register DOORBELLnICRR 128 ICR RX Cppi Interrupt condition routing bits RX Cppi Interrupt Condition Routing Register Rxcppi Icrr RX Cppi Interrupt Condition Routing Register Rxcppi ICRR2 RX Cppi Interrupt Condition Routing Register Rxcppi ICRR2 ICR TX Cppi Interrupt condition routing bits TX Cppi Interrupt Condition Routing Register Txcppi Icrr TX Cppi Interrupt Condition Routing Register Txcppi ICRR2 TX Cppi Interrupt Condition Routing Register Txcppi ICRR2 ICR LSU Module Interrupt Condition Routing Register 0 LSUICRR0 LSU Module Interrupt Condition Routing Register 1 LSUICRR1 LSU Module Interrupt Condition Routing Register 1 LSUICRR1 LSU Module Interrupt Condition Routing Register 2 LSUICRR2 LSU Module Interrupt Condition Routing Register 2 LSUICRR2 LSU Module Interrupt Condition Routing Register 3 LSUICRR3 LSU Module Interrupt Condition Routing Register 3 LSUICRR3 Errrstevnticrr Field Descriptions Errrstevnticrr ICR11 ERRRSTEVNTICRR2 Field Descriptions ERRRSTEVNTICRR3 Field Descriptions ERRRSTEVNTICRR3 INTDSTn Interrupt Status Decode Registers INTDSTnDECODE INTDSTn Interrupt Status Decode Registers INTDSTnDECODE Countdownvalue INTDSTn Interrupt Rate Control Registers INTDSTnRATECNTLCountdown Value LSU n Control Register 0 LSU nREG0 Field Descriptions LSUn Control Register 0 LSUnREG0Addressmsb Bit Ext address fields Addresslsb Configoffse T AddresslsbconfigoffsetLSUn Control Register 1 LSUnREG1 LSU n Control Register 1 LSU nREG1 Field Descriptions LSU n Control Register 2 LSU nREG2 Field Descriptions LSUn Control Register 2 LSUnREG2Dspaddress 32b DSP byte address LSUn Control Register 3 LSUnREG3 LSU n Control Register 3 LSU nREG3 Field DescriptionsBytecount LSUn Control Register 4 LSUnREG4 Field Descriptions LSUn Control Register 4 LSUnREG4 LSU n Control Register 5 LSU nREG5 Field Descriptions LSUn Control Register 5 LSUnREG5Drbllinfo Hopcount Packettype LSUn Control Register 6 LSUnREG6 Field Descriptions LSUn Control Register 6 LSUnREG6Completioncode BSY Completionc Flowmask LSU Congestion Control Flow Mask n Lsuflowmasks n Txhdp Txcp Rxhdp Queue Receive DMA Completion Pointer Registers QUEUEnRXDMACP Queue Receive DMA Completion Pointer Registers QUEUEnRXDMACP Transmit Queue Teardown Register Txqueueteardown QUEUE3FLOWMASK QUEUE2FLOWMASK QUEUE1FLOWMASK QUEUE0FLOWMASKQUEUE5FLOWMASK QUEUE4FLOWMASK QUEUE7FLOWMASK QUEUE6FLOWMASK Mask QUEUE15FLOWMASK QUEUE14FLOWMASK Receive Queue Teardown Register Rxqueueteardown Receive Queue Teardown Register Rxqueueteardown Receive Cppi Control Register Rxcppicntl Field Descriptions Receive Cppi Control Register Rxcppicntl 3NUMMSGS Txqueuemap3QUEUEPTR 2NUMMSGS 7QUEUEPTR 7NUMMSGS6NUMMSGS 6QUEUEPTR 11QUEUEPTR 11NUMMSGS10NUMMSGS 10QUEUEPTR 15QUEUEPTR 15NUMMSGS14NUMMSGS 14QUEUEPTR Mailbox-to-Queue Mapping Register Ln RXUMAPLn Mailbox-to-Queue Mapping Register Hn RXUMAPHn Flowcntlid Flow Control Table Entry Registers FLOWCNTLn Device Identity CAR Devid Field Descriptions Device Identity CAR Devid Device Information CAR Devinfo Field Descriptions Device Information CAR DevinfoDevicerev Vendor supply device revision Assembly Identity CAR Asblyid Field Descriptions Assembly Identity CAR Asblyid Assembly Information CAR Asblyinfo Field Descriptions Assembly Information CAR Asblyinfo Processing Element Features CAR Pefeat Field Descriptions Processing Element Features CAR Pefeat Source Operations CAR Srcop Field Descriptions Source Operations CAR Srcop Destination Operations CAR Destop Field Descriptions Destination Operations CAR Destop Extendedaddress Processing Element Logical Layer Control CSR PellctlIngcontrol Ressingcont Lcsba Local Configuration Space Base Address 0 CSR Lclcfghbar Local Configuration Space Base Address 1 CSR Lclcfgbar Local Configuration Space Base Address 1 CSR Lclcfgbar Base Device ID CSR Baseid Field Descriptions Base Device ID CSR Baseid Hostbasedeviceid Host Base Device ID Lock CSR HostbaseidlockHostbasede Viceid Component Tag CSR Comptag Component Tag CSR Comptag Field DescriptionsComponenttag Efid Efptr Port Link Time-Out Control CSR Spltctl Port Link Timeout Control CSR Spltctl Field Descriptions Port Response Time-Out Control CSR Sprtctl 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 SPnLMREQ Port Link Maintenance Response CSR n SPnLMRESP Port Local AckID Status CSR n SPnACKIDSTAT Port Error and Status CSR n SPnERRSTAT Field Descriptions Port Error and Status CSR n SPnERRSTAT Portok PortuninitiaLized Port Control CSR n SPnCTL Field Descriptions Port Control CSR n SPnCTL Nable Port Control CSR n SP nCTL Field Descriptions Error Reporting Block Header Errrptbh Field Descriptions Error Reporting Block Header Errrptbh Logical/Transport Layer Error Detect CSR Errdet Logical/Transport Layer Error Enable CSR Erren Logical/Transport Layer High Address Capture CSR Haddrcapt ADDRESS633250 bit addresses 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 Field Descriptions Port Error Detect CSR n SPnERRDET Port Error Rate Enable CSR n SPnRATEEN Field Descriptions Port Error Rate Enable CSR n SPnRATEEN Port n Attributes Error Capture CSR 0 SPnERRATTRCAPTDBG0 CAPTURE0 CAPTURE0 CAPTURE1 CAPTURE1 CAPTURE2 CAPTURE2 CAPTURE3 CAPTURE3 Port Error Rate CSR n SPnERRRATE Field Descriptions Port Error Rate CSR n SPnERRRATE Port Error Rate Threshold CSR n SPnERRTHRESH Discoverytimer Port IP Discovery Timer in 4x mode SpipdiscoverytimerPwtimer Discoveryti Port IP Mode CSR Spipmode Field Descriptions Port IP Mode CSR Spipmode Rsten Port IP Mode CSR Spipmode Field Descriptions Serial Port IP Prescalar Ipprescal Serial Port IP Prescalar Ipprescal Field DescriptionsPrescale Pwcapt Port-Write-In Capture CSR n SPIPPWINCAPTn Port Reset Option CSR n SPnRSTOPT Port Reset Option CSR n SP nRSTOPT Field DescriptionsPortid Port Control Independent Register n SPnCTLINDEP Maxretryer MaxretryenMaxretryth Irqen Port Silence Timer n SPnSILENCETIMER Port Silence Timer n SPnSILENCETIMER Field DescriptionsSilencetimer Multevntcs Multevntcs Port Control Symbol Transmit n SP nCSTX Field Descriptions Port Control Symbol Transmit n SPnCSTX Important Notice