rgmii layout guidelines


<< 0000045651 00000 n It is used for Gigabit Ethernet but can also carry 10/100 Mbit/s Ethernet. AN 477: Designing RGMII Interfaces with FPGAs and HardCopy ASICs This application note describes how to design a reduced gigabit media independent interface (RGMII) with Stratix®, Arria®, and Cyclone® FPGAs and HardCopy® ASICs. 0000043291 00000 n 0000043443 00000 n 0000046242 00000 n 0000046526 00000 n

0000033741 00000 n 0000051110 00000 n 0000043090 00000 n 0000047341 00000 n The Reduced Gigabit Media Independent Interface (RGMII) module provides an RGMII interface to an existing Ethernet MAC design with a GMII or TBI interface, for example the Gigabit Ethernet MAC (GEM) available from Cadence Design Foundry. 2922 0 obj Mag PHY.

Place closely in order to make signal traces be 0000041435 00000 n

0000040298 00000 n 0000053112 00000 n 0000049045 00000 n 0000051895 00000 n 0000001304 00000 n 0000050583 00000 n

0000047198 00000 n /O 2928 0000008869 00000 n 0000038071 00000 n 0000036901 00000 n The registers for RGMII Delay and RGMII Copper mode settings were completely different and the default setup supports both on 88E1152. 0000044384 00000 n

0000040155 00000 n 0000038943 00000 n Layout Rules. 0000043744 00000 n The serial gigabit media-independent interface (SGMII) is a variant of MII, a standard interface used to connect an Ethernet MAC block to a PHY.
If so, additional PCB delay is probably not needed. 0000037212 00000 n 0000052042 00000 n RJ45 Mag. 0000004213 00000 n 0000002736 00000 n 0000046681 00000 n 0000050999 00000 n 0000037887 00000 n trailer

/H [4410 807] The RGMII interface has been designed in accordance with the standards and specifications agreed in the endobj 0000009094 00000 n 0000005582 00000 n 0000041557 00000 n /Encrypt 2926 0 R 0000005753 00000 n

2011/2/10 Rev. The P2041 RGMII implies that PC board design requires clocks to be routed such that an additional trace delay of greater than 1.5 ns is added to the associated clock signal. These guidelines are provided with the goal to help designers to design compliant systems with DAVE Embedded Systems modules and they cover schematics and PCB aspects.

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0000053390 00000 n 0000039607 00000 n 0000044639 00000 n 0000052514 00000 n 0000053527 00000 n /E 53715 Many factors go into laying out a PCB efficiently.

0000043971 00000 n Measured from a data octet input into rgmii_rxd[3:0] of the receiver side of the RGMII interface until that data appears on the gmii_rxd[7:0] on the GMII interface, the latency through the core through the receive direction is one clock period of rgmii_rx_clk, plus the additional delay equal to the fixed delay specified on the IDELAY component. 0000000017 00000 n 0000005382 00000 n

0000052980 00000 n 0000041965 00000 n RJ45 RJ45. This page provides useful information and resources to system designers in order to design carrier boards hosting DAVE Embedded Systems system-on-modules (SOM).. 2922 132 0000004143 00000 n

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