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1-Gigabit Ethernet MAC v8.5 User Guide www.xilinx.com 11
UG144 April 24, 2009
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Chapter 11: Interfacing to Other Cores
Figure 11-1: 1-Gigabit Ethernet MAC Extended to Include 1000BASE-X PCS with TBI 114
Figure 11-2: 1-Gigabit Ethernet MAC Extended to Include 1000BASE-X PCS and PMA
using a RocketIO Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Figure 11-3: 1-Gigabit Ethernet MAC Extended to Include 1000BASE-X PCS and PMA
using a RocketIO transceiver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Figure 11-4: 1-Gigabit Ethernet MAC Extended to Include 1000BASE-X PCS and PMA
using the RocketIO transceiver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Figure 11-5: Interfacing the Ethernet Statistics to the 1-Gigabit Ethernet MAC . . . . . . 120
Chapter 12: Implementing Your Design
Appendix A: Using the Client-Side FIFO
Figure A-1: Typical 10 Mbps/100 Mbps/ 1 Gbps Ethernet FIFO Implementation. . . . . 127
Figure A-2: Frame Transfer across LocalLink Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Figure A-3: Frame Transfer with Flow Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Appendix B: Core Verification, Compliance, and Interoperability
Appendix C: Calculating DCM Phase-Shifting
Appendix D: Core Latency
- LogiCORE™ IP 1
- 1-Gigabit Ethernet 1
- MAC v8.5 1
- Revision History 3
- Table of Contents 5
- Appendix D: Core Latency 8
- Schedule of Figures 9
- UG144 April 24, 2009 10
- Schedule of Tables 13
- About This Guide 15
- Conventions 16
- Online Document 17
- List of Acronyms 17
- Introduction 19
- Specifications 20
- Technical Support 20
- Feedback 20
- Core Architecture 21
- Core Components 22
- Core Interfaces 23
- Client Side Interface 26
- Receiver Interface 27
- Flow Control Interface 27
- Physical Side Interface 29
- MDIO Interface 30
- Generating the Core 31
- Component Name 32
- Management Interface 32
- Address Filter 32
- Physical Interface 32
- Output Generation 33
- Designing with the Core 35
- Know the Degree of Difficulty 37
- Keep it Registered 38
- Use Supported Design Flows 38
- Chapter 5 39
- Frame Reception with Errors 41
- Client-Supplied FCS Passing 42
- VLAN Tagged Frames 42
- Disabled 43
- Receiver Statistics Vector 44
- Transmitting Outbound Frames 47
- Client Underrun 48
- Inter-Frame Gap Adjustment 49
- Transmitter Statistics Vector 50
- Using Flow Control 53
- Flow Control Basics 54
- Pause Control Frames 55
- Core-initiated Pause Request 56
- Pause Frame Reception Enabled 57
- Operation 59
- Chapter 6: Using Flow Control 60
- Chapter 7 61
- GMII Receiver Logic 63
- DCM Reset circuitry 64
- IOB LOGIC 66
- Virtex-4 Devices 67
- RGMII Receiver Logic 70
- Implementing External RGMII 71
- Using the MDIO interface 76
- Configuration and Status 77
- Configuration Registers 78
- Receiver Configuration 79
- Transmitter Configuration 80
- Flow Control Configuration 81
- MDIO Configuration 82
- Address Filter Configuration 82
- Accessing the Address Table 85
- LOCATION 86
- 31 : 0 47 : 32 86
- IDLE IDLE32 bits 87
- STA drives MDIO 87
- Constraining the Core 93
- MDIO Logic 94
- Flow Control 95
- Configuration 95
- "reset_dist_grp"; 96
- GMII Input Setup/Hold Timing 97
- Non-Virtex-5 devices 99
- RGMII IOB Constraints 101
- RGMII Input Setup/Hold Timing 102
- Virtex-5 Devices 103
- RGMII DDR Constraints 104
- Non-Virtex-5 Devices 105
- -- DISCONTINUED PRODUCT 108
- Clocking and Resetting 109
- Multiple Cores 110
- With RGMII 111
- Reset Conditions 112
- Interfacing to Other Cores 113
- Tra ns ce i ve r 115
- Virtex-5 LXT and SXT Devices 117
- Virtex-5 FXT Devices 118
- Ethernet Statistics Core 119
- Implementing Your Design 123
- Implementation 124
- Static Timing Analysis 125
- Generating a Bitstream 125
- Generating a Simulation Model 125
- Using the Model 126
- Using the Client-Side FIFO 127
- Interfaces 128
- Receive FIFO 129
- Data Flow 130
- Functional Operation 131
- Expanding Maximum Frame Size 132
- Interoperability 133
- Appendix C 135
- Core Latency 137
- Appendix D: Core Latency 138
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