Intel® Arria® 10 Device Datasheet

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ID 683771
Date 2/14/2022
Public
Document Table of Contents

Ethernet Media Access Controller (EMAC) Timing Characteristics

Table 67.  Reduced Gigabit Media Independent Interface (RGMII) TX Timing Requirements for Intel® Arria® 10 Devices
Symbol Description Min Typ Max Unit
Tclk (1000Base-T) TX_CLK clock period 8 ns
Tclk (100Base-T) TX_CLK clock period 40 ns
Tclk (10Base-T) TX_CLK clock period 400 ns
Tdutycycle TX_CLK duty cycle 45 50 55 %
Td 100 TX_CLK to TXD/TX_CTL output data delay –0.5 0.5 ns
Figure 13. RGMII TX Timing Diagram
Table 68.  RGMII RX Timing Requirements for Intel® Arria® 10 Devices
Symbol Description Min Typ Max Unit
Tclk (1000Base-T) RX_CLK clock period 8 ns
Tclk (100Base-T) RX_CLK clock period 40 ns
Tclk (10Base-T) RX_CLK clock period 400 ns
Tsu RX_D/RX_CTL setup time 1 ns
Th 101 RX_D/RX_CTL hold time 1 ns
Figure 14. RGMII RX Timing Diagram
Table 69.  Reduced Media Independent Interface (RMII) Clock Timing Requirements for Intel® Arria® 10 Devices
Symbol Description Min Typ Max Unit
Tclk (100Base-T) TX_CLK clock period 20 ns
Tclk (10Base-T) TX_CLK clock period 20 ns
Tdutycycle Clock duty cycle, internal clock source 35 50 65 %
Tdutycycle Clock duty cycle, external clock source 35 50 65 %
Table 70.  RMII TX Timing Requirements for Intel® Arria® 10 Devices
Symbol Description Min Typ Max Unit
Td TX_CLK to TXD/TX_CTL output data delay 7 10 ns
Table 71.  RMII RX Timing Requirements for Intel® Arria® 10 Devices
Symbol Description Min Typ Max Unit
Tsu RX_D/RX_CTL setup time 1 ns
Th RX_D/RX_CTL hold time 0.4 ns
Table 72.  Management Data Input/Output (MDIO) Timing Requirements for Intel® Arria® 10 Devices
Symbol Description Min Typ Max Unit
Tclk MDC clock period 400 ns
Td MDC to MDIO output data delay 10.2 20 ns
Tsu Setup time for MDIO data 10 ns
Th Hold time for MDIO data 0 ns
Figure 15. MDIO Timing Diagram
100 Rise and fall times depend on the I/O standard, drive strength, and loading. Intel recommends simulating your configuration.
101 For more information, refer to the Intel® Arria® 10 SoC Device Design Guidelines.

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