Xilinx UG194 Virtex-5 FPGA Embedded Tri-Mode Ethernet MAC ...

More documents

Recommendations

Info

Chapter 2: Ethernet MAC Overview Table 2-18: Physical Interface Attributes Attribute Type Description EMAC#_CONFIGVEC_79 Boolean Reserved, set to TRUE. Attributes to Configure Default Register Values for SGMII or 1000BASE-X Management Registers The following attributes are only used in SGMII or 1000BASE- X modes. See “1000BASE-X PCS/PMA Management Registers,” page 122 and “SGMII Management Registers,” page 130 for register details. See “MDIO Implementation in the Ethernet MAC,” page 119 for information on how to access these registers. EMAC#_PHYRESET Boolean This attribute sets the default value of the Reset bit in the PCS/PMA Management Register 0 (Control Register). A value of TRUE resets the PCS/PMA module. EMAC#_PHYINITAUTONEG_ENABLE Boolean This attribute sets the default value of the Auto-Negotiation Enable bit in the PCS/PMA Management Register 0 (Control Register). A value of TRUE enables auto-negotiation of the PCS/PMA module. EMAC#_PHYISOLATE Boolean This attribute sets the default value of the Isolate bit in the PCS/PMA Management Register 0 (Control Register). A value of TRUE causes the PCS/PMA sublayer logic to behave as if it is electrically isolated from the attached Ethernet MAC, as defined in IEEE Std 802.3, clause 22.2.4.1.6. Therefore, frames transmitted by the Ethernet MAC are not forwarded through the PCS/PMA. Frames received by the PCS/PMA are not relayed to the Ethernet MAC. EMAC#_PHYPOWERDOWN Boolean This attribute sets the default value of the Power Down bit in the PCS/PMA Management Register 0 (Control Register). A value of TRUE causes the RocketIO serial transceiver to be placed in a Low power state. A reset must be applied to clear the Low power state. EMAC#_PHYLOOPBACKMSB Boolean This attribute sets the default value of the Loopback bit in the PCS/PMA Management Register 0 (Control Register). A value of TRUE for this attribute enables loopback. EMAC#_GTLOOPBACK sets if the loopback occurs in the Ethernet MAC or in the RocketIO serial transceiver. EMAC#_UNIDIRECTION_ENABLE Boolean This attribute sets the default value of the unidirection enable bit in the PCS/PMA Management Register 0 (Control Register). Setting this attribute to TRUE allows the Ethernet MAC to transmit regardless of whether a valid link has been established. EMAC#_GTLOOPBACK Boolean This attribute sets the default value of the GT Loopback bit in “Vendor-Specific Register: Loopback Control Register (Register 17),” page 129. This attribute controls where the loopback happens when loopback is selected. When EMAC#_GTLOOPBACK is TRUE, the loopback occurs in the RocketIO serial transceiver. Near-End parallel PCS loopback is used. When EMAC#_GTLOOPBACK is FALSE, the loopback is internal to the EMAC. In this state, idles are transmitted to the RocketIO serial transceiver. 48 www.xilinx.com TEMAC User Guide UG194 (v1.10) February 14, 2011 R
R Table 2-18: Physical Interface Attributes (Cont’d) Attribute Type Description Ethernet MAC Attributes Attribute to Configure Auto-negotiation Parameters See the following sections for details on attribute value settings for Physical interface settings of SGMII or 1000BASE- X: SGMII: “Auto-Negotiation Link Timer,” page 197. 1000BASE-X: “Auto-Negotiation Link Timer,” page 175. EMAC#_LINKTIMERVAL[8:0] 9-bit Binary Table 2-19: Address Filter Attributes Programmable auto-negotiation link timer value. Attribute Type Description Attribute to Configure Default Register Value for the Unicast Address Register EMAC#_UNICASTADDR[47:0] 48-bit Binary Table 2-20: DCR Base Address Attributes This attribute sets the default value of the Unicast Address[47:0] in the Unicast Address (Word 0) and (Word 1) registers. See “Unicast Address (Word 0),” page 95 and “Unicast Address (Word 1),” page 95 for register details. This 48-bit attribute is used to set the Ethernet MAC unicast address used by the address filter block to see if the incoming frame is destined for the Ethernet MAC. The address is ordered for the least significant byte in the register to have the first byte transmitted or received; for example, an Ethernet MAC address of 06-05-04-03-02-01 is stored in bits [47:0] as 0x010203040506. This default value for the unicast address can be overridden by software through the host interface. Attribute Type Description Attribute to Configure Default Value for DCR Base Address EMAC#_DCRBASEADDR[7:0] 8-bit Binary See “Using the DCR Bus,” page 101 for a description of how the DCR Base Addresses are used to access different registers. This attribute allows separate DCR base addresses to be used for each Ethernet MAC. TEMAC User Guide www.xilinx.com 49 UG194 (v1.10) February 14, 2011
Page 1 and 2: Virtex-5 FPGA Embedded Tri-Mode Eth
Page 3 and 4: Date Version Revision 08/08/07 (con
Page 5 and 6: Date Version Revision 10/01/09 1.9
Page 7 and 8: Table of Contents Guide Contents .
Page 9 and 10: R Chapter 5: MDIO Interface Introdu
Page 11 and 12: R About This Guide Guide Contents P
Page 13 and 14: R Additional Support Resources User
Page 15 and 16: R Typographical Online Document Use
Page 17 and 18: Introduction Key Features R Chapter
Page 19 and 20: R Typical Ethernet Application Over
Page 21 and 22: R Number of Bytes Physical Sublayer
Page 23 and 24: R Data Pad FCS Ethernet Protocol Ov
Page 25 and 26: R Using the Embedded Ethernet MAC T
Page 27 and 28: R Ethernet MAC Overview Chapter 2 T
Page 29 and 30: Generic Host Bus DCR Bus R Flow Con
Page 31 and 32: R Ethernet MAC Primitive Ethernet M
Page 33 and 34: R Ethernet MAC Signal Descriptions
Page 35 and 36: R Table 2-3: Receive Client Interfa
Page 37 and 38: R DCR Bus Signals Table 2-6: DCR Bu
Page 39 and 40: R Table 2-8: PHY Data and Control S
Page 41 and 42: R Table 2-12: PCS/PMA Signals Table
Page 43 and 44: R Table 2-16: Mode Configuration At
Page 45 and 46: R Table 2-17: MAC Configuration Att
Page 47: R Table 2-17: MAC Configuration Att
Page 51 and 52: R Client Interface Chapter 3 This c
Page 53 and 54: R Normal Frame Transmission CLIENTE
Page 55 and 56: R CLIENTEMAC#TXCLIENTCLKIN CLIENTEM
Page 57 and 58: R CLIENTEMAC#TXCLIENTCLKIN CLIENTEM
Page 59 and 60: R Normal Frame Transmission PHYEMAC
Page 61 and 62: R CLIENTEMAC#TXCLIENTCLKIN PHYEMAC#
Page 63 and 64: R CLIENTEMAC#TXCLIENTCLKIN PHYEMAC#
Page 65 and 66: R Frame Reception with Errors CLIEN
Page 67 and 68: R Receive (RX) Client: 8-Bit Interf
Page 69 and 70: R Receive (RX) Client: 16-Bit Inter
Page 71 and 72: R Address Filtering Address Filteri
Page 73 and 74: R CLIENTEMAC#RXCLIENTCLKIN Flow Con
Page 75 and 76: R Transmitting a PAUSE Control Fram
Page 77 and 78: R Operation Figure 3-30 illustrates
Page 79 and 80: R Ethernet MAC Block EMAC#CLIENTTXS
Page 81 and 82: R Table 3-3: Bit Definitions for th
Page 83 and 84: R CLIENTEMAC#RXCLIENTCLKIN EMAC#CLI
Page 85 and 86: R Host/DCR Bus Interfaces This chap
Page 87 and 88: HOSTCLK HOSTMIIMSEL HOSTREQ HOSTOPC
Page 89 and 90: R Table 4-3: Receiver Configuration
Page 91 and 92: R Table 4-5: Flow Control Configura
Page 93 and 94: R Table 4-7: RGMII/SGMII Configurat
Page 95 and 96: R Table 4-9: Unicast Address (Word
Page 97 and 98: R Table 4-13: Address Filter Mode 0
Page 99 and 100:
R HOSTCLK HOSTMIIMSEL HOSTOPCODE[1]
Page 101 and 102:
R HOSTCLK HOSTMIIMSEL HOSTREQ HOSTO
Page 103 and 104:
R Using the DCR Bus The directly ad
Page 105 and 106:
R Table 4-18: DCR Control Register
Page 107 and 108:
R Using the DCR Bus The IRENABLE_e#
Page 109 and 110:
R // Write to the cntlReg_e1 regist
Page 111 and 112:
DCR Offset 0x1 MSB R Using the DCR
Page 113 and 114:
R Using the DCR Bus // EMAC Managem
Page 115 and 116:
R MDIO Interface Chapter 5 This cha
Page 117 and 118:
MDC MDIO R MDIO Transactions Introd
Page 119 and 120:
R MDIO Implementation in the Ethern
Page 121 and 122:
Generic Host Bus DCR Bus R PHYEMAC#
Page 123 and 124:
R 1000BASE-X PCS/PMA Management Reg
Page 125 and 126:
R Table 5-4: Status Register (Regis
Page 127 and 128:
R 1000BASE-X PCS/PMA Management Reg
Page 129 and 130:
R Table 5-13: Vendor-Specific Regis
Page 131 and 132:
R 2, 3 “PHY Identifier (Registers
Page 133 and 134:
1.2 SGMII Link Status R Table 5-16:
Page 135 and 136:
R Table 5-22: SGMII Auto-Negotiatio
Page 137 and 138:
R Physical Interface Chapter 6 This
Page 139 and 140:
R GMII / MII RGMII SGMII Introducti
Page 141 and 142:
TX CLIENT LOGIC RX CLIENT LOGIC R M
Page 143 and 144:
R Gigabit Media Independent Interfa
Page 145 and 146:
GTX_CLK R IBUFG TX CLIENT LOGIC RX
Page 147 and 148:
GTX_CLK R IBUFG BUFG TX Client Logi
Page 149 and 150:
Page 151 and 152:
Page 153 and 154:
R Reduced Gigabit Media Independent
Page 155 and 156:
Page 157 and 158:
GTX_CLK TX Client Logic RX Client L
Page 159 and 160:
GTX_CLK TX Client Logic RX Client L
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
FPGA R PCS/PMA Sublayer MAC TX Inte
Page 167 and 168:
R Ethernet MAC to RocketIO Serial T
Page 169 and 170:
TX and RX Client Logic R 1000BASE-X
Page 171 and 172:
R 1000BASE-X PCS/PMA REFCLKOUT outp
Page 173 and 174:
R DCM BUFG CLKFB CLK0 CLKIN CLKFX B
Page 175 and 176:
R 1000BASE-X PCS/PMA IEEE Std 802.3
Page 177 and 178:
R 1000BASE-X PCS/PMA Ethernet MAC.
Page 179 and 180:
FPGA R Introduction to the SGMII Im
Page 181 and 182:
R RX Elastic Buffer Implementations
Page 183 and 184:
R Serial Gigabit Media Independent
Page 185 and 186:
Page 187 and 188:
Page 189 and 190:
R Ethernet MAC (PCS/PMA Sublayer) E
Page 191 and 192:
TX and RX Client Logic R SGMII Cloc
Page 193 and 194:
Page 195 and 196:
DCM CLKFB CLK0 CLKIN CLKDV CLKDV_DI
Page 197 and 198:
Page 199 and 200:
R Interfacing to a Statistics Block
Page 201 and 202:
R Using the DCR Bus to Access Stati
Page 203 and 204:
R Pinout Guidelines Appendix A Xili
Page 205 and 206:
R Ethernet MAC Clocks Appendix B Th
Page 207 and 208:
TX Client Logic RX Client Logic R
Page 209 and 210:
R Clock Enables Clock Connections t
Page 211 and 212:
R Receiver Clock Clock Definitions
Page 213 and 214:
R GMII (Byte PHY) Mode Clock Defini
Page 215 and 216:
R Clock Definitions and Frequencies
Page 217 and 218:
R Virtex-4 to Virtex-5 FPGA Enhance
Page 219 and 220:
R Clock Enables Modifications Relat
Page 221 and 222:
R Additional Attributes Table C-2:
Page 223 and 224:
R Appendix D Differences between So
show all

Xilinx UG194 Virtex-5 FPGA Embedded Tri-Mode Ethernet MAC ...

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?