GOWIN 1G Serial Ethernet IP User manual

Gowin 1G Serial Ethernet IP
User Guide
IPUG1021-1.0E, 06/30/2023

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Revision History
Date
Version
Description
06/30/2023
1.0E
Initial version published.

Contents
IPUG1021-1.0E
i
Contents
Contents ...............................................................................................................i
List of Figures....................................................................................................iii
List of Tables.......................................................................................................v
1 About This Guide.............................................................................................1
1.1 Purpose .............................................................................................................................. 1
1.2 Related Documents ............................................................................................................1
1.3 Terminology and Abbreviations...........................................................................................1
1.4 Support and Feedback .......................................................................................................2
2 Overview...........................................................................................................3
2.1 Features..............................................................................................................................3
2.2 Operating Frequency .......................................................................................................... 4
2.3 Resource Utilization............................................................................................................ 4
3 Functional Description....................................................................................5
3.1 Structure ............................................................................................................................. 5
3.2 User Interface ..................................................................................................................... 6
3.2.1 Configure Interface ..........................................................................................................6
3.2.2 Status Interface................................................................................................................8
3.2.3 PHY Layer Interface ........................................................................................................9
3.2.4 MAC Layer Interface......................................................................................................13
4 Port List ..........................................................................................................24
5 Parameter Configuration...............................................................................28
6 Interface Configuration .................................................................................29
7 Reference Design ..........................................................................................34
7.1 Hardware Platform............................................................................................................ 34
7.2 Implementation Diagram................................................................................................... 35
7.3 On-Board Testing..............................................................................................................35
7.3.1 Operation Description ....................................................................................................35
7.3.2 Operating Flow ..............................................................................................................36
8 File Delivery ...................................................................................................37
8.1 Documentation..................................................................................................................37

Contents
IPUG1021-1.0E
ii
8.2 Design Source Code (Encryption) ....................................................................................37
8.3 Reference Design ............................................................................................................. 37

List of Figures
IPUG1021-1.0E
iii
List of Figures
Figure 3-1 Block Diagram of Gowin 1G Serial Ethernet IP................................................................5
Figure 3-2 Normal Ethernet Frame Reception at 1000M .................................................................. 9
Figure 3-3 Normal Ethernet Frame Reception at 10M/100M ............................................................ 9
Figure 3-4 Frame Reception with Errors at 1000M............................................................................10
Figure 3-5 Frame Reception with Errors at 10M/1000M.................................................................... 10
Figure 3-6 Reception with Carrier Extension at 1000M ..................................................................... 10
Figure 3-7 Reception with Carrier Extension at 10M/100M ...............................................................10
Figure 3-8 Carrier Extension Reception with Error at 1000M ............................................................10
Figure 3-9 Carrier Extension Reception with Error at 10M/100M ......................................................10
Figure 3-10 Normal Ethernet Frame Transmit at 1000M ................................................................... 11
Figure 3-11 Normal Ethernet Frame Transmit at 10M/100M .............................................................11
Figure 3-12 Ethernet Frame Transmit with Error at 1000M ............................................................... 11
Figure 3-13 Ethernet Frame Transmit with Error at 10M/1000M .......................................................12
Figure 3-14 Transmit with Carrier Extension at 1000M .....................................................................12
Figure 3-15 Transmit with Carrier Extension at 10M/100M ...............................................................12
Figure 3-16 Carrier Extension Transmit with Error at 1000M ............................................................12
Figure 3-17 Carrier Extension Transmit with Error at 10M/100M ......................................................12
Figure 3-18 Transmit in Half Duplex Mode at 1000M ........................................................................ 13
Figure 3-19 Transmit Collision at 1000M ...........................................................................................13
Figure 3-20 Normal MAC Frame Reception at 1000M ...................................................................... 13
Figure 3-21 Normal MAC Frame Reception at 10M/100M ................................................................ 13
Figure 3-22 MAC Frame Reception with Error at 1000M .................................................................. 14
Figure 3-23 MAC Frame Reception with Error at 10M/1000M .......................................................... 14
Figure 3-24 Normal MAC Frame Reception When FCS Forward Enabled at 1000M ....................... 14
Figure 3-25 MAC Frame Reception with Error When FCS Forward Enabled at 1000M ................... 14
Figure 3-26 Normal MAC Frame Reception When FCS Forward Enabled at 10M/100M.................15
Figure 3-27 MAC Frame Reception with Error When FCS Forward Enabled at 10M/100M .............15
Figure 3-28 VLAN Tagged Frame Reception.....................................................................................15
Figure 3-29 Reception Statistics ........................................................................................................16
Figure 3-30 Normal MAC Frame Transmit at 1000M......................................................................... 17
Figure 3-31 Normal MAC Frame Transmit at 10M/100M................................................................... 17
Figure 3-32 MAC Frame Transmit with Error at 1000M.....................................................................17

List of Figures
IPUG1021-1.0E
iv
Figure 3-33 MAC Frame Transmit with Error at 10M/1000M.............................................................17
Figure 3-34 MAC Frame Transmit When FCS Forward Enabled at 1000M ...................................... 18
Figure 3-35 MAC Frame Transmit When FCS Forward Enabled at 10M/100M ................................ 18
Figure 3-36 Re-transmit in Case of Collision ..................................................................................... 18
Figure 3-37 Abort Re-transmit in Case of Collision (Actively)............................................................ 18
Figure 3-38 Abort Re-transmit in Case of Collision (Passively).........................................................19
Figure 3-39 Transmit Statistics ..........................................................................................................19
Figure 3-40 Pause Frame Transmit ...................................................................................................20
Figure 3-41 Pause Frame Reception.................................................................................................20
Figure 3-42 Connection Diagram of MDC and MDIO ........................................................................ 22
Figure 3-43 Write Timing of miim ....................................................................................................... 22
Figure 3-44 Read Timing of miim....................................................................................................... 23
Figure 4-1 I/O Port Diagram of Gowin 1G Serial Ethernet IP ............................................................24
Figure 6-1 IP Core Generator ............................................................................................................ 29
Figure 6-2 Serdes IP Configuration Interface ....................................................................................30
Figure 6-3 PHY Configuration ............................................................................................................ 31
Figure 6-4 MAC Configuration ........................................................................................................... 32
Figure 6-5 1G Serial Ethernet IP Interface.........................................................................................33
Figure 7-1 Hardware Platform............................................................................................................ 34
Figure 7-2 Implementation Diagram of Reference Design ................................................................ 35

List of Tables
IPUG1021-1.0E
v
List of Tables
Table 1-1 Terminology and Abbreviations ..........................................................................................1
Table 2-1 Gowin 1G Memory Interface IP..........................................................................................3
Table 2-2 Resource Utilization ...........................................................................................................4
Table 3-1 Bit Definition of configuration_vector_i...............................................................................7
Table 3-2 Bit Definition of status_vector_o ........................................................................................ 8
Table 3-3 Bit Definition of rx_statistics_vector_o ............................................................................... 16
Table 3-4 Bit Definition of tx_statistics_vector_o ...............................................................................19
Table 4-1 IO Port List of Gowin 1G Serial Ethernet IP....................................................................... 25
Table 5-1 Static Parameters of Gowin 1G Serial Ethernet IP ............................................................28
Table 8-1 Document List .................................................................................................................... 37
Table 8-2 Design Source Code List of Gowin 1G Serial Ethernet IP.................................................37
Table 8-3 Gowin 1G Serial Ethernet IP RefDesign File List............................................................... 38

1 About This Guide
1.1 Purpose
IPUG1021-1.0E
1(38)
1About This Guide
1.1 Purpose
The purpose of Gowin 1G Serial Ethernet IP User Guide is to help you
learn the features and usage of Gowin 1G Serial Ethernet IP by providing
the descriptions of functions, GUI, and reference design, etc.
1.2 Related Documents
The latest user guides are available on the GOWINSEMI website. You
can find the related documents at www.gowinsemi.com:
SUG100, Gowin Software User Guide
DS981, GW5AT series of FPGA Products Data Sheet
DS1104, GW5AST series of FPGA Products Data Sheet
1.3 Terminology and Abbreviations
The terminology and abbreviations used in this manual are as shown
in Table 1-1.
Table 1-1 Terminology and Abbreviations
Terminology and Abbreviations
Meaning
CRC
Cyclic Redundancy Check
FCS
Frame Check Sequence
IFG
Inter-Frame Gap
IP
Intellectual Property
LUT
Look-up Table
MAC
Media Access Control
PCS
Physical Coding Sublayer
SFD
Start of Frame Delimiter

1 About This Guide
1.4 Support and Feedback
IPUG1021-1.0E
2(38)
1.4 Support and Feedback
Gowin Semiconductor provides customers with comprehensive
technical support. If you have any questions, comments, or suggestions,
please feel free to contact us directly using the information provided below.
Website: www.gowinsemi.com
E-mail: [email protected]