Texas-instruments TMS320TCI6486 Instrukcja Użytkownika

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Strona 1 - User's Guide

TMS320C6472/TMS320TCI6486 DSPEthernet Media Access Controller (EMAC)/Management Data Input/Output (MDIO) ModuleUser's GuideLiterature Number: SPR

Strona 2 - Submit Documentation Feedback

PrefaceSPRUEF8F–March 2006–Revised November 2010Read This FirstAbout This ManualThis document provides a functional description of the Ethernet Media

Strona 3

EMAC Port Registerswww.ti.com5.6 Receive Teardown Register (RXTEARDOWN)The receive teardown register (RXTEARDOWN) is shown in Figure 48 and described

Strona 4

www.ti.comEMAC Port Registers5.7 Transmit Interrupt Status (Unmasked) Register (TXINTSTATRAW)The transmit interrupt status (unmasked) register (TXINTS

Strona 5

EMAC Port Registerswww.ti.com5.8 Transmit Interrupt Status (Masked) Register (TXINTSTATMASKED)The transmit interrupt status (masked) register (TXINTST

Strona 6

www.ti.comEMAC Port Registers5.9 Transmit Interrupt Mask Set Register (TXINTMASKSET)The transmit interrupt mask set register (TXINTMASKSET) is shown i

Strona 7

EMAC Port Registerswww.ti.com5.10 Transmit Interrupt Mask Clear Register (TXINTMASKCLEAR)The transmit interrupt mask clear register (TXINTMASKCLEAR) i

Strona 8

www.ti.comEMAC Port Registers5.11 MAC Input Vector Register (MACINVECTOR)The MAC input vector register (MACINVECTOR) is shown in Figure 53 and describ

Strona 9

EMAC Port Registerswww.ti.com5.12 MAC End-of-Interrupt Vector Register (MACEOIVECTOR)The MAC end-of-interrupt vector register (MACEOIVECTOR) is shown

Strona 10 - Read This First

www.ti.comEMAC Port Registers5.13 Receive Interrupt Status (Unmasked) Register (RXINTSTATRAW)The receive interrupt status (unmasked) register (RXINTST

Strona 11 - C6472/TCI6486 EMAC/MDIO

EMAC Port Registerswww.ti.com5.14 Receive Interrupt Status (Masked) Register (RXINTSTATMASKED)The receive interrupt status (masked) register (RXINTSTA

Strona 12 - 1.3 Functional Block Diagram

www.ti.comEMAC Port Registers5.15 Receive Interrupt Mask Set Register (RXINTMASKSET)The receive interrupt mask set register (RXINTMASKSET) is shown in

Strona 13 - Introduction

User's GuideSPRUEF8F–March 2006–Revised November 2010C6472/TCI6486 EMAC/MDIO1 IntroductionThis document provides a functional description of the

Strona 14

EMAC Port Registerswww.ti.com5.16 Receive Interrupt Mask Clear Register (RXINTMASKCLEAR)The receive interrupt mask clear register (RXINTMASKCLEAR) is

Strona 15 - 2.1 Clock Control

www.ti.comEMAC Port Registers5.17 MAC Interrupt Status (Unmasked) Register (MACINTSTATRAW)The MAC interrupt status (unmasked) register (MACINTSTATRAW)

Strona 16 - 2.2 Memory Map

EMAC Port Registerswww.ti.com5.18 MAC Interrupt Status (Masked) Register (MACINTSTATMASKED)The MAC interrupt status (masked) register (MACINTSTATMASKE

Strona 17 - 2.3 System-Level Connections

www.ti.comEMAC Port Registers5.19 MAC Interrupt Mask Set Register (MACINTMASKSET)The MAC interrupt mask set register (MACINTMASKSET) is shown in Figur

Strona 18 - EMAC Functional Architecture

EMAC Port Registerswww.ti.com5.20 MAC Interrupt Mask Clear Register (MACINTMASKCLEAR)The MAC interrupt mask clear register (MACINTMASKCLEAR) is shown

Strona 19

www.ti.comEMAC Port Registers5.21 Receive Multicast/Broadcast/Promiscuous Channel Enable Register(RXMBPENABLE)The receive multicast/broadcast/promiscu

Strona 20

EMAC Port Registerswww.ti.comTable 57. Receive Multicast/Broadcast/Promiscuous Channel Enable Register (RXMBPENABLE) FieldDescriptions (continued)Bit

Strona 21

www.ti.comEMAC Port RegistersTable 57. Receive Multicast/Broadcast/Promiscuous Channel Enable Register (RXMBPENABLE) FieldDescriptions (continued)Bit

Strona 22

EMAC Port Registerswww.ti.com5.22 Receive Unicast Enable Set Register (RXUNICASTSET)The receive unicast enable set register (RXUNICASTSET) is shown in

Strona 23

www.ti.comEMAC Port Registers5.23 Receive Unicast Clear Register (RXUNICASTCLEAR)The receive unicast clear register (RXUNICASTCLEAR) is shown in Figur

Strona 24

EMIC0CPPIbuffermanager+CPPIRAM0EMAC0DMAmemorytransfercontrolPeripheralbusMDIOEMAC1CPPIbuffermanager+CPPIRAM1EMIC1ToGEMsToGEMsMII0/GMII0RGMII0

Strona 25

EMAC Port Registerswww.ti.com5.24 Receive Maximum Length Register (RXMAXLEN)The receive maximum length register (RXMAXLEN) is shown in Figure 66 and d

Strona 26

www.ti.comEMAC Port Registers5.25 Receive Buffer Offset Register (RXBUFFEROFFSET)The receive buffer offset register (RXBUFFEROFFSET) is shown in Figur

Strona 27

EMAC Port Registerswww.ti.com5.26 Receive Filter Low Priority Frame Threshold Register (RXFILTERLOWTHRESH)The receive filter low priority frame thresh

Strona 28

www.ti.comEMAC Port Registers5.27 Receive Channel 0-7 Flow Control Threshold Register (RXnFLOWTHRESH)The receive channel 0-7 flow control threshold re

Strona 29

EMAC Port Registerswww.ti.com5.28 Receive Channel 0-7 Free Buffer Count Register (RXnFREEBUFFER)The receive channel 0-7 free buffer count register (RX

Strona 30

www.ti.comEMAC Port Registers5.29 MAC Control Register (MACCONTROL)The MAC control register (MACCONTROL) is shown in Figure 71 and described in Table

Strona 31 - 2.5 Programming Interface

EMAC Port Registerswww.ti.comTable 65. MAC Control Register (MACCONTROL) Field Descriptions (continued)Bit Field Value Description12 RXFIFOFLOWEN Rece

Strona 32

www.ti.comEMAC Port Registers5.30 MAC Status Register (MACSTATUS)The MAC status register (MACSTATUS) is shown in Figure 72 and described in Table 66.F

Strona 33

EMAC Port Registerswww.ti.comTable 66. MAC Status Register (MACSTATUS) Field Descriptions (continued)Bit Field Value Description15-12 RXERRCODE Receiv

Strona 34

www.ti.comEMAC Port Registers5.31 Emulation Control Register (EMCONTROL)The emulation control register (EMCONTROL) is shown in Figure 73 and described

Strona 35

www.ti.comIntroductionThe EMAC module provides an efficient interface between the TCI6486/C6472 core processor and thenetworked community. The EMAC su

Strona 36

EMAC Port Registerswww.ti.com5.32 FIFO Control Register (FIFOCONTROL)The FIFO control register (FIFOCONTROL) is shown in Figure 74 and described in Ta

Strona 37

www.ti.comEMAC Port Registers5.33 MAC Configuration Register (MACCONFIG)The MAC configuration register (MACCONFIG) is shown in Figure 75 and described

Strona 38

EMAC Port Registerswww.ti.com5.34 Soft Reset Register (SOFTRESET)The soft reset register (SOFTRESET) is shown in Figure 76 and described in Table 70.F

Strona 39

www.ti.comEMAC Port Registers5.35 MAC Source Address Low Bytes Register (MACSRCADDRLO)The MAC source address low bytes register (MACSRCADDRLO) is show

Strona 40

EMAC Port Registerswww.ti.com5.36 MAC Source Address High Bytes Register (MACSRCADDRHI)The MAC source address high bytes register (MACSRCADDRHI) is sh

Strona 41

www.ti.comEMAC Port Registers5.37 MAC Hash Address Register 1 (MACHASH1)The MAC hash registers allow group addressed frames to be accepted on the basi

Strona 42

EMAC Port Registerswww.ti.com5.38 MAC Hash Address Register 2 (MACHASH2)The MAC hash address register 2 (MACHASH2) is shown in Figure 80 and described

Strona 43 - TIME>= TIME_CFG

www.ti.comEMAC Port Registers5.39 Back Off Test Register (BOFFTEST)The back off test register (BOFFTEST) is shown in Figure 81 and described in Table

Strona 44

EMAC Port Registerswww.ti.com5.40 Transmit Pacing Algorithm Test Register (TPACETEST)The transmit pacing algorithm test register (TPACETEST) is shown

Strona 45

www.ti.comEMAC Port Registers5.41 Receive Pause Timer Register (RXPAUSE)The receive pause timer register (RXPAUSE) is shown in Figure 83 and described

Strona 46

Introductionwww.ti.comTable 2. EMAC1_EN Pin Description (continued)Value Description1 EMAC1 is enabled and used.Pulls on EMAC1 I/O are disabled (excep

Strona 47

EMAC Port Registerswww.ti.com5.42 Transmit Pause Timer Register (TXPAUSE)The transmit pause timer register (TXPAUSE) is shown in Figure 84 and describ

Strona 48

www.ti.comEMAC Port Registers5.43 MAC Address Low Bytes Register (MACADDRLO)The MAC address low bytes register (MACADDRLO) is shown in Figure 85 and d

Strona 49

EMAC Port Registerswww.ti.com5.44 MAC Address High Bytes Register (MACADDRHI)The MAC address high bytes register (MACADDRHI) is shown in Figure 86 and

Strona 50

www.ti.comEMAC Port Registers5.45 MAC Index Register (MACINDEX)The MAC index register (MACINDEX) is shown in Figure 87 and described in Table 81.Figur

Strona 51

EMAC Port Registerswww.ti.com5.46 Transmit Channel 0-7 DMA Head Descriptor Pointer Register (TXnHDP)The transmit channel 0-7 DMA head descriptor point

Strona 52 - 2.9 EMAC Module

www.ti.comEMAC Port Registers5.47 Receive Channel 0-7 DMA Head Descriptor Pointer Register (RXnHDP)The receive channel 0-7 DMA head descriptor pointer

Strona 53

EMAC Port Registerswww.ti.com5.48 Transmit Channel 0-7 Completion Pointer Register (TXnCP)The transmit channel 0-7 completion pointer register (TXnCP)

Strona 54

www.ti.comEMAC Port Registers5.49 Receive Channel 0-7 Completion Pointer Register (RXnCP)The receive channel 0-7 completion pointer register (RXnCP) i

Strona 55

EMAC Port Registerswww.ti.com5.50 Network Statistics RegistersThe EMAC has a set of statistics that record events associated with frame traffic. The s

Strona 56

www.ti.comEMAC Port Registers5.50.3 Multicast Receive Frames Register (RXMCASTFRAMES)The total number of good multicast frames received on the EMAC. A

Strona 57

www.ti.comEMAC Functional Architecture2 EMAC Functional ArchitectureThis section discusses the architecture and basic function of the EMAC peripheral.

Strona 58 - 2.11 Packet Receive Operation

EMAC Port Registerswww.ti.com5.50.7 Receive Oversized Frames Register (RXOVERSIZED)The total number of oversized frames received on the EMAC. An overs

Strona 59

www.ti.comEMAC Port Registers5.50.11 Filtered Receive Frames Register (RXFILTERED)The total number of frames received on the EMAC that the EMAC addres

Strona 60

EMAC Port Registerswww.ti.com5.50.15 Broadcast Transmit Frames Register (TXBCASTFRAMES)The total number of good broadcast frames transmitted on the EM

Strona 61

www.ti.comEMAC Port Registers• Was any size• Had no carrier loss and no underrun• Experienced one collision before successful transmission. The collis

Strona 62

EMAC Port Registerswww.ti.com5.50.25 Transmit Carrier Sense Errors Register (TXCARRIERSENSE)The total number of frames on the EMAC that experienced ca

Strona 63 - 2.14 Transfer Node Priority

www.ti.comEMAC Port Registers5.50.30 Transmit and Receive 256 to 511 Octet Frames Register (FRAME256T511)The total number of 256-byte to 511-byte fram

Strona 64 - 2.15 Reset Considerations

EMAC Port Registerswww.ti.com5.50.34 Receive FIFO or DMA Start-of-Frame Overruns Register (RXSOFOVERRUNS)The total number of frames received on the EM

Strona 65 - 2.16 Initialization

www.ti.comAppendix A GlossaryBroadcast MAC Address— A special Ethernet MAC address used to send data to all Ethernet deviceson the local network. The

Strona 66

Appendix Awww.ti.comJumbo Packets— Jumbo frames are defined as those packets whose length exceeds the standardEthernet MTU, which is 1500 kbytes. For

Strona 67 - 2.17 Interrupt Support

www.ti.comAppendix B Revision HistoryThis revision history highlights the technical changes made to the document in this revision.Table 87. EMAC/MDIO

Strona 68

EMAC Functional Architecturewww.ti.com2.1.3 GMII ClockingThe GMII interface is available only on EMAC0 and requires two clock sources generated intern

Strona 69 - 2.19 Emulation Considerations

IMPORTANT NOTICETexas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improveme

Strona 70

www.ti.comEMAC Functional Architecture2.3 System-Level ConnectionsOn the TCI6486/C6472 device, EMAC0 and EMAC1 support the following different types o

Strona 71 - 3.2 RPIC Registers

MTCLKMTXD[3−0]MTXENMCOLMCRSMRCLKMRXD[3−0]MRXDVMRXERMDCLKMDIO2.5 MHZor25 MHzPhysicallayerdevice(PHY)SystemcoreEMACMDIOTransformerRJ-45EMAC Functional A

Strona 72 - Figure 24. RPCFG Register

www.ti.comEMAC Functional ArchitectureTable 7. EMAC and MDIO Signals for MII InterfaceSignal Name I/O DescriptionMTCLK I Transmit clock (MTCLK). The t

Strona 73 - EMIC Module Registers

2SPRUEF8F–March 2006–Revised November 2010Submit Documentation FeedbackCopyright © 2006–2010, Texas Instruments Incorporated

Strona 74 - 3.3 TPIC Registers

MDCLKMDIORMTXD[1−0]RMTXENRMCRSDVRMRXD[1−0]RMRXERPhysicallayerdevice(PHY)EMACMDIOSystemcoreRMREFCLK RMREFCLK50-MHzzero-delayclock buffer50-MHzXOEMAC Fu

Strona 75

MTCLKMTXD[7−0]MTXENMCOLMCRSMRCLKMRXD[7−0]MRXDVMRXERMDCLKMDIOPhysicallayerdevice(PHY)SystemcoreTransformer2.5 MHz,25 MHz,or 125 MHzRJ−45EMACMDIOGMTCLKw

Strona 76 - 4.1 Introduction

EMAC Functional Architecturewww.ti.comTable 9. EMAC and MDIO Signals for GMII InterfaceSignal Name I/O DescriptionMTCLK I Transmit clock (MTCLK). The

Strona 77 - MDIO Registers

RGTXCRGTXD[3−0]RGTXCTLRGREFCLKRGRXCRGRXD[3−0]RGRXCTLRGMDCLKRGMDIOPhysicallayerdevice(PHY)SystemcoreTransformer2.5 MHz25 MHz,or 125 MHzRJ−45EMACMDIOwww

Strona 78

EMAC Functional Architecturewww.ti.comTable 10. EMAC and MDIO Signals for RGMII Interface (continued)Signal Name I/O DescriptionRGRXCTL I Receive cont

Strona 79

TX_CLKTXDTX_SYNCRX_CLKRXDRX_SYNCMDCLKMDIOEMACMDIOSystemcorePhysicallayerdevice(PHY)MHZ_125_CLK125-MHzzero-delayclockbuffer125-MHzXOwww.ti.comEMAC Fun

Strona 80

EMAC Functional Architecturewww.ti.comTable 11 summarizes the individual EMAC and MDIO signals for the S3MII interface.Table 11. EMAC and MDIO Signals

Strona 81

TXDTX_SYNCTX_CLKRXDRX_SYNCRX_CLKMHZ_125_CLKDevice #1TXDTX_SYNCTX_CLKRXDRX_SYNCRX_CLKMHZ_125_CLKDevice #2TXDTX_SYNCTX_CLKRXDRX_SYNCRX_CLKMHZ_125_CLKDev

Strona 82

TXDTX_SYNCTX_CLKRXDRX_SYNCRX_CLKMHZ_125_CLKDevice #1TXDTX_SYNCTX_CLKRXDRX_SYNCRX_CLKMHZ_125_CLKDevice #2TXDTX_SYNCTX_CLKRXDRX_SYNCRX_CLKMHZ_125_CLKDev

Strona 83

PreambleSFDDestinationSourceLen Data7 1 6 6 2 46 − (RXMAXLEN - 18) 4FCSNumber of bytesLegend: SFD = Start Frame Delimiter; FCS = Frame Check Sequence

Strona 84

Preface ... 101 Int

Strona 85

EMAC Functional Architecturewww.ti.com2.4.2 Multiple Access ProtocolNodes in an ethernet local area network are interconnected by a broadcast channel.

Strona 86 - (USERINTMASKCLEAR)

www.ti.comEMAC Functional Architecture2.5 Programming Interface2.5.1 Packet Buffer DescriptorsThe buffer descriptor is a central part of the EMAC modu

Strona 87

SOP | EOP600 60pBufferpNextPacket A60 bytes0SOPPacket BFragment 1512 bytes5121514pBufferpNextEOP00−−−Packet BFragment 3500 bytes502pBuffer−−−500pNext−

Strona 88

www.ti.comEMAC Functional ArchitectureTo add a descriptor or a linked list of descriptors to an EMAC descriptor queue for the first time, thesoftware

Strona 89

EMAC Functional Architecturewww.ti.com2.5.4 Transmit Buffer Descriptor FormatA transmit (TX) buffer descriptor (Figure 12) is a contiguous block of fo

Strona 90

www.ti.comEMAC Functional Architecture2.5.4.1 Next Descriptor PointerThe next descriptor pointer indicates the 32-bit word aligned memory address of t

Strona 91 - 5 EMAC Port Registers

EMAC Functional Architecturewww.ti.com2.5.4.7 End-of-Packet (EOP) FlagWhen set, this flag indicates that the descriptor points to the last packet buff

Strona 92

www.ti.comEMAC Functional Architecture2.5.5 Receive Buffer Descriptor FormatA receive (RX) buffer descriptor (Figure 13) is a contiguous block of four

Strona 93

EMAC Functional Architecturewww.ti.com2.5.5.1 Next Descriptor PointerThe next descriptor pointer indicates the 32-bit word aligned memory address of t

Strona 94

www.ti.comEMAC Functional Architecture2.5.5.7 End-of-Packet (EOP) FlagWhen set, this flag indicates that the descriptor points to the last packet buff

Strona 95 - Table 37

www.ti.com4.11 MDIO User Command Complete Interrupt Mask Clear Register (USERINTMASKCLEAR) ... 864.12 MDIO User Access Register 0 (USERA

Strona 96

EMAC Functional Architecturewww.ti.com2.5.5.16 Control FlagThe EMAC sets this flag in the SOP buffer descriptor if the received packet is an EMAC cont

Strona 97

TXpacerandinterruptcombinerRXpacerandinterruptcombinerMACTXINT0MACRXINT0Commoninterruptcombiner MACINT0TXpacerandinterruptcombiner MACTX

Strona 98 - Table 40

PacingblockTimed-delaySMDIV_NEXTDivideSMEVT_TIMEDEVT_DIVEVT_OUTPS_TICKEVT_INEMAC Functional Architecturewww.ti.com2.7.1 Pacing BlockIn simple terms

Strona 99

WaitingDelayTime=0Time=0OutputEVT_PULSE=0 &&DIV_NEXT=1EVT_PULSE=1&&TIME< TIME_CFGEVT_PULSE=1&&DIV_NEXT=1PS_TICK=1&&

Strona 100 - EMAC Port Registers

WaitingCountOutputEVT_PULSE=0(or)EVT_PULSE=1&&CNT >=CNT_CFG&& TIME_CFGI=0IncrementCNTCNT=1EVT_PULSE=0&&CR=0EVT_PULSE

Strona 101

PacingblockTXEVT[0]PacingblockTXEVT[1]EW_INTCTL[8]EW_INTCTL[9]PacingblockTXEVT[2]PacingblockTXEVT[3]EW_INTCTL[10]EW_INTCTL[11]PacingblockTXEVT[4]

Strona 102

PacingblockRXEVT[0]PacingblockRXEVT[1]EW_INTCTL[16]EW_INTCTL[17]PacingblockRXEVT[2]PacingblockRXEVT[3]EW_INTCTL[18]EW_INTCTL[19]PacingblockRXEVT[

Strona 103 - Table 45

EW_INTCTL[1]EW_INTCTL[2]EW_INTCTL[3]EW_INTCTL[4]EW_INTCTL[4:1]MACINTCommoninterruptcombinerblockHOSTSTATMDIO_LINTMDIO_USERwww.ti.comEMAC Functional

Strona 104 - Table 46

EMICmoduleControlregistersandlogicPHYmonitoringPeripheralclockMDIOclockgeneratorUSERINTMDIOinterfacePHYpollingMDCLKMDIOLINKINTConfigurationbusEMAC F

Strona 105

www.ti.comEMAC Functional Architecture2.8.2 MDIO Module Operational OverviewThe MDIO module implements the 802.3 serial management interface to simult

Strona 106 - Table 48

www.ti.com5.43 MAC Address Low Bytes Register (MACADDRLO) ... 1415.44 MAC Address High Bytes

Strona 107

EMAC Functional Architecturewww.ti.com2.8.2.2 Writing Data to a PHY RegisterThe MDIO module includes a user access register (USERACCESSn) to directly

Strona 108

www.ti.comEMAC Functional ArchitectureThe implementation of these macros using the register layer Chip Support Library (CSL) is shown inExample 3 (USE

Strona 109 - Table 51

ClockandresetlogicReceiveDMA engineInterruptcontrollerTransmitDMA engineControlregistersEMICReceiveFIFOMACreceiverStateRAMStatisticsTransmitFIFOMACt

Strona 110 - Table 52

www.ti.comEMAC Functional Architecturecan be sent to only a single channel.• The transmit path:– Transmit DMA engineThe transmit DMA engine performs t

Strona 111

EMAC Functional Architecturewww.ti.comAn interrupt is issued to the CPU whenever a transmit or receive operation has completed. However, it isnot nece

Strona 112

www.ti.comEMAC Functional ArchitectureReceive buffer flow control is triggered when the number of free buffers in any enabled receive channel(RXnFREEB

Strona 113 - Table 55

EMAC Functional Architecturewww.ti.com• Zero padding to 64-byte data length (EMAC transmits only 64-byte pause frames).• The 32-bit frame-check sequen

Strona 114 - Table 56

www.ti.comEMAC Functional Architecture2.10.2.5 Back OffThe EMAC implements the 802.3 binary exponential back-off algorithm.2.10.2.6 Transmit Flow Cont

Strona 115 - (RXMBPENABLE)

EMAC Functional Architecturewww.ti.com2.10.2.7 Speed, Duplex, and Pause Frame SupportThe MAC can operate in half-duplex or full-duplex mode at 10 Mbps

Strona 116 - Descriptions (continued)

www.ti.comEMAC Functional ArchitectureA MAC address location in RAM is 53 bits wide and consists of:• 48 bits of the MAC address• 3 bits for the chann

Strona 117

www.ti.comList of Figures1 EMAC and MDIO Block Diagram... 122 Eth

Strona 118 - Table 58

EMAC Functional Architecturewww.ti.com2.11.6 Receive Channel TeardownThe host commands a receive channel teardown by writing the channel number to the

Strona 119

www.ti.comEMAC Functional Architecture2.11.8 Promiscuous Receive ModeWhen the promiscuous receive mode is enabled by setting the RXCAFEN bit in the RX

Strona 120

EMAC Functional Architecturewww.ti.comTable 14. Receive Frame Treatment Summary (continued)Address RXMBPENABLE BitsMatchRXCAFEN RXCEFEN RXCMFEN RXCSFE

Strona 121

www.ti.comEMAC Functional Architecture• Initialize the TXnHDP registers to zero.• Enable the desired transmit interrupts using the TXINTMASKSET and TX

Strona 122 - Descriptions

EMAC Functional Architecturewww.ti.comFor example, for 1000-Mbps operation, these restrictions translate into the following rules:• For the short-term

Strona 123

www.ti.comEMAC Functional Architecture2.16 Initialization2.16.1 Enabling the EMAC/MDIO PeripheralWhen the device is powered on, the EMAC peripheral is

Strona 124

EMAC Functional Architecturewww.ti.comIf the MDIO module must operate on an interrupt basis, the interrupts can be enabled at this time usingthe USERI

Strona 125 - 15 14 13 12 11 10 9 8

www.ti.comEMAC Functional ArchitectureConfiguration register (EMACCFG), found at device level.20. Enable the device interrupt in EW_INTCTL.2.17 Interr

Strona 126

EMAC Functional Architecturewww.ti.comUpon interrupt reception, the CPU processes one or more packets from the buffer chain and thenacknowledges one o

Strona 127

www.ti.comEMAC Functional Architecture2.17.2.1 Link Change InterruptThe MDIO module asserts a link change interrupt (LINKINT) if there is a change in

Strona 128

www.ti.com48 Receive Teardown Register (RXTEARDOWN) ... 10049 Transmit Interrupt St

Strona 129

EMAC Functional Architecturewww.ti.comWhen the emulation suspend state is entered, the EMAC will stop processing receive and transmit framesat the nex

Strona 130

www.ti.comEMIC Module Registers3 EMIC Module Registers3.1 EW_INTCTL RegistersThere are six EW_INTCTL registers (one per C64x+ megamodule). These regis

Strona 131

EMIC Module Registerswww.ti.comFigure 24. RPCFG Register31 28 27 16Reserved TIME_CFG0000 R/W-0000 000015 8 7 4 3 2 1 0CNT_CFG Reserved TU CU TR CRR/W-

Strona 132

www.ti.comEMIC Module Registers3.2.2 RPSTAT RegistersThere are eight RPSTAT registers (RPSTAT0 thru RPSTAT7), one per receive event. This registerconf

Strona 133 - Table 71

EMIC Module Registerswww.ti.com3.3 TPIC Registers3.3.1 TPCFG RegistersThere are eight TPCFG registers (TPCFG0 through TPCFG7), one per transmit event.

Strona 134 - Table 72

www.ti.comEMIC Module Registers3.3.2 TPSTAT RegistersThere are eight TPSTAT registers (TPSTAT0 through TPSTAT7), one per transmit event. This register

Strona 135

MDIO Registerswww.ti.com4 MDIO Registers4.1 IntroductionTable 21 lists the memory-mapped registers for the Management Data Input/Output (MDIO). For th

Strona 136

www.ti.comMDIO Registers4.2 MDIO Version Register (VERSION)The MDIO version register (VERSION) is shown in Figure 29 and described in Table 22.Figure

Strona 137

MDIO Registerswww.ti.com4.3 MDIO Control Register (CONTROL)The MDIO control register (CONTROL) is shown in Figure 30 and described in Table 23.Figure

Strona 138 - Table 76

www.ti.comMDIO Registers4.4 PHY Acknowledge Status Register (ALIVE)The PHY acknowledge status register (ALIVE) is shown in Figure 31 and described in

Strona 139

www.ti.comList of Tables1 Serial Management Interface Pins ... 132

Strona 140

MDIO Registerswww.ti.com4.5 PHY Link Status Register (LINK)The PHY link status register (LINK) is shown in Figure 32 and described in Table 25.Figure

Strona 141

www.ti.comMDIO Registers4.6 MDIO Link Status Change Interrupt (Unmasked) Register (LINKINTRAW)The MDIO link status change interrupt (unmasked) registe

Strona 142

MDIO Registerswww.ti.com4.7 MDIO Link Status Change Interrupt (Masked) Register (LINKINTMASKED)The MDIO link status change interrupt (masked) register

Strona 143

www.ti.comMDIO Registers4.8 MDIO User Command Complete Interrupt (Unmasked) Register (USERINTRAW)The MDIO user command complete interrupt (unmasked) r

Strona 144

MDIO Registerswww.ti.com4.9 MDIO User Command Complete Interrupt (Masked) Register (USERINTMASKED)The MDIO user command complete interrupt (masked) re

Strona 145

www.ti.comMDIO Registers4.10 MDIO User Command Complete Interrupt Mask Set Register (USERINTMASKSET)The MDIO user command complete interrupt mask set

Strona 146 - Table 84

MDIO Registerswww.ti.com4.11 MDIO User Command Complete Interrupt Mask Clear Register(USERINTMASKCLEAR)The MDIO user command complete interrupt mask c

Strona 147 - Table 85

www.ti.comMDIO Registers4.12 MDIO User Access Register 0 (USERACCESS0)The MDIO user access register 0 (USERACCESS0) is shown in Figure 39 and describe

Strona 148

MDIO Registerswww.ti.com4.13 MDIO User PHY Select Register 0 (USERPHYSEL0)The MDIO user PHY select register 0 (USERPHYSEL0) is shown in Figure 40 and

Strona 149

www.ti.comMDIO Registers4.14 MDIO User Access Register 1 (USERACCESS1)The MDIO user access register 1 (USERACCESS1) is shown in Figure 41 and describe

Strona 150

www.ti.com47 MAC Input Vector Register (MACINVECTOR) Field Descriptions ... 10548 MAC End-of-Interrupt Ve

Strona 151

MDIO Registerswww.ti.com4.15 MDIO User PHY Select Register 1 (USERPHYSEL1)The MDIO user PHY select register 1 (USERPHYSEL1) is shown in Figure 42 and

Strona 152

www.ti.comEMAC Port Registers5 EMAC Port RegistersTable 36 lists the memory-mapped registers for the Ethernet Media Access Controller (EMAC). For them

Strona 153

EMAC Port Registerswww.ti.comTable 36. Ethernet Media Access Controller (EMAC) Registers (continued)Offset Acronym Register Description See15Ch RX7FRE

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www.ti.comEMAC Port RegistersTable 36. Ethernet Media Access Controller (EMAC) Registers (continued)Offset Acronym Register Description See65Ch TX7CP

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EMAC Port Registerswww.ti.comTable 36. Ethernet Media Access Controller (EMAC) Registers (continued)Offset Acronym Register Description See27Ch FRAME1

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www.ti.comEMAC Port Registers5.1 Transmit Identification and Version Register (TXIDVER)The transmit identification and version register (TXIDVER) is s

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EMAC Port Registerswww.ti.com5.2 Transmit Control Register (TXCONTROL)The transmit control register (TXCONTROL) is shown in Figure 44 and described in

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www.ti.comEMAC Port Registers5.3 Transmit Teardown Register (TXTEARDOWN)The transmit teardown register (TXTEARDOWN) is shown in Figure 45 and describe

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EMAC Port Registerswww.ti.com5.4 Receive Identification and Version Register (RXIDVER)The receive identification and version register (RXIDVER) is sho

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www.ti.comEMAC Port Registers5.5 Receive Control Register (RXCONTROL)The receive control register (RXCONTROL) is shown in Figure 47 and described in T

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