Xilinx IP Ethernet AVB Endpoint v2.4 UG492 Bedienungsanleitung Seite 72
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72 www.xilinx.com Ethernet AVB Endpoint User Guide
UG492 September 21, 2010
Chapter 7: Ethernet AVB Endpoint Reception
VLAN Priority Match
The example illustrated in Figure 7-6 shows a single MAC Header Filter (one of the eight
provided) configured to filter on frames containing a VLAN tag with a VLAN Priority
value of 1.
Any Other Combinations
Because the Match Pattern Register and Match Enable Register provide the ability to filter
across any bitwise match/don’t-care pattern of the initial 128-bits of an Ethernet frame,
match combinations of Destination Address, Length/Type Field (when no VLAN tag is
present), VLAN fields (when present) can be selected with complete flexibility.
X-Ref Target - Figure 7-6
Figure 7-6: Filtering of VLAN Frames with a Specific Priority Value
rx_clk
legacy_rx_data[7:0]
legacy_rx_data_valid
rx_clk_enable
DA SA DATAL/T
VLAN
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0xFF
0xFF
0xE0
0x00
Don’t-cares
Match Pattern Register
Match Enable Register
0x81
0x00
0x20
VLAN
priority
filter
- LogiCORE 1
- Ethernet AVB 1
- Endpoint v2.4 1
- Revision History 2
- Table of Contents 3
- Chapter 5: Core Architecture 4
- Chapter 13: Software Drivers 6
- Kit (EDK) 7
- Schedule of Figures 9
- UG492 September 21, 2010 10
- Schedule of Tables 13
- About This Guide 17
- Conventions 18
- Online Document 19
- List of Abbreviations 20
- Preface: About This Guide 22
- Recommended Design Experience 24
- Additional Core Resources 24
- Technical Support 24
- Feedback 24
- Document 25
- Chapter 1: Introduction 26
- Licensing the Core 27
- Obtaining Your License Key 28
- Installing the License File 28
- Bridging 29
- AVB Specifications 30
- P802.1Qav 31
- Typical Implementation 32
- Component Name 36
- Core Delivery Format 36
- Ethernet AVB GUI Page 2 37
- Output Generation 38
- Core Architecture 39
- EDK pcore Format 41
- Functional Block Description 42
- Tx Arbiter 43
- Rx Splitter 43
- MAC Header Filters 43
- Tx PTP Packet Buffers 44
- Tx Time Stamp 44
- Rx PTP Packet Buffers 44
- Rx Time Stamp 44
- Tri-Mode Ethernet MACs 46
- Core Interfaces 47
- Legacy Traffic Interface 48
- AV Traffic Interface 49
- MAC Transmitter Interface 50
- MAC Receiver Interface 51
- MAC Management Interface 51
- PLB Interface 53
- Chapter 5: Core Architecture 54
- Interrupt Signals 55
- PTP Signals 56
- Chapter 6 57
- Tx AV Traffic I/F 59
- Tx Arbiter Bandwidth Control 63
- Chapter 7 65
- Legacy MAC Header Filters 67
- Match Pattern Register 70
- Match Enable Register 70
- VLAN Priority Match 72
- Any Other Combinations 72
- Rx AV Traffic I/F 73
- Errored AV Traffic Reception 74
- Chapter 8 75
- ,” which 76
- RTC Implementation 77
- (Step 2) Synchronized RTC 78
- Time Stamping Logic 79
- Chapter 9 83
- Rx PTP Packet Buffer 85
- Configuration and Status 87
- Single Write Transaction 89
- Rx Filtering Control Register 93
- RTC Offset Control Registers 94
- Current RTC Value Registers 95
- RTC Interrupt Clear Register 96
- Phase Adjustment Register 97
- MAC Address Filter Registers 100
- MAC MDIO Registers 101
- Constraining the Core 103
- signal: 104
- Required Constraints 107
- "rtc_regs_sample"; 109
- System Integration 111
- Introduction 124
- EDK Tool Domain 125
- Ethernet 125
- MHS File Syntax 127
- AXI_Ethernet Configuration 130
- Software Drivers 131
- Clock Slave 132
- Software System Integration 132
- Core Initialization 134
- Ethernet AVB Endpoint Setup 134
- Quick Start Example Design 137
- Generating the Core 139
- Simulating the Example Design 141
- What’s Next? 142
- Chapter 15 143
- Directory and File Contents 144
- <component name>/doc 145
- Table 15-9: Timing Directory 148
- Implementation Scripts 151
- Simulation Scripts 151
- Example Design 152
- Top-Level Example Design HDL 153
- Ethernet Frame Stimulus 153
- Ethernet Frame Checker 154
- Loopback Module 154
- PLB Module 155
- Demonstration Test Bench 156
- Customizing the Test Bench 157
- X-Ref Target - Figure 15-3C 158
- Development Kit (EDK) 165
- RTC Time Stamp Accuracy 167
- 0 40 80 120 160 200 240RTC 168
- RTC Sampling Error 169
- Sampling 170
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