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AM3359 Datasheet(PDF) 108 Page - Texas Instruments |
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AM3359 Datasheet(HTML) 108 Page - Texas Instruments |
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108 / 195 page  RGMII[x]_RCLK 2 3 1 4 4 RGMII[x]_RD[3:0] (B) RGMII[x]_RCTL (B) RGMII[x]_RCLK (A) 1 RXERR 1st Half-byte 2nd Half-byte 2 3 RXDV RGRXD[3:0] RGRXD[7:4] AM3359, AM3358, AM3357 AM3356, AM3354, AM3352 SPRS717B – OCTOBER 2011 – REVISED JANUARY 2012 www.ti.com 5.3.1.3 Ethernet MAC/Switch RGMII Electrical Data/Timing RGMII mode is not supported for OPP50. Table 5-9. Timing Requirements for RGMII[x]_RCLK - RGMII Mode (see Figure 5-8) 10 Mbps 100 Mbps 1000 Mbps NO. UNIT MIN TYP MAX MIN TYP MAX MIN TYP MAX 1 tc(RXC) Cycle time, RXC 360 440 36 44 7.2 8.8 ns Pulse duration, RXC 2 tw(RXCH) 160 240 16 24 3.6 4.4 ns high 3 tw(RXCL) Pulse duration, RXC low 160 240 16 24 3.6 4.4 ns 4 tt(RXC) Transition time, RXC 0.75 0.75 0.75 ns Figure 5-8. RGMII[x]_RCLK Timing - RGMII Mode Table 5-10. Timing Requirements for RGMII[x]_RD[3:0], and RGMII[x]_RCTL - RGMII Mode (see Figure 5-9) 10 Mbps 100 Mbps 1000 Mbps NO. UNIT MIN TYP MAX MIN TYP MAX MIN TYP MAX Setup time, RD[3:0] valid tsu(RD-RXC) 1 1 1 before RXC high/low 1 ns Setup time, RX_CTL valid tsu(RX_CTL-RXC) 1 1 1 before RXC high/low Hold time, RD[3:0] valid th(RXC-RD) 1 1 1 after RXC high/low 2 ns Hold time, RX_CTL valid th(RXC-RX_CTL) 1 1 1 after RXC high/low tt(RD) Transition time, RD 0.75 0.75 0.75 3 ns tt(RX_CTL) Transition time, RX_CTL 0.75 0.75 0.75 A. RGMII[x]_RCLK must be externally delayed relative to the RGMII[x]_RD[3:0] and RGMII[x]_RCTL signals to meet the respective timing requirements. B. Data and control information is received using both edges of the clocks. RGMII[x]_RD[3:0] carries data bits 3-0 on the rising edge of RGMII[x]_RCLK and data bits 7-4 on the falling edge of RGMII[x]_RCLK. Similarly, RGMII[x]_RCTL carries RXDV on rising edge of RGMII[x]_RCLK and RXERR on falling edge of RGMII[x]_RCLK. Figure 5-9. RGMII[x]_RD[3:0], RGMII[x]_RCTL Timing - RGMII Mode 108 Peripheral Information and Timings Copyright © 2011–2012, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): AM3359 AM3358 AM3357 AM3356 AM3354 AM3352 |
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