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AM6546ACD 数据表(PDF) 169 Page - Texas Instruments |
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AM6546ACD 数据表(HTML) 169 Page - Texas Instruments |
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169 / 284 page  NO. PARAMETER DESCRIPTION MODE MIN TYP MAX UNIT RGMII5 th(RXC-RD) Hold time, RD[3:0] valid after RXC high/low 10Mbps 1 ns 100Mbps 1 ns 1000Mbps 1.15 ns th(RXC-RX_CTL) Hold time, RX_CTL valid after RXC high/low 10Mbps 1 ns 100Mbps 1 ns 1000Mbps 1.15 ns RGMII[x] RD 3 _ [ :0] (B) RGMII[x] RX_CTL _ (B) RGMII[x] RXC _ (A) RGMII4 RXERR RXDV 2nd Half-byte 1st Half-byte RGMII2 RGMII3 RGMII1 RGMII5 A. RGMII_RXC must be externally delayed relative to the data and control pins. B. Data and control information is received using both edges of the clocks. RGMII_RXD[3:0] carries data bits 3-0 on the rising edge of RGMII_RXC and data bits 7-4 on the falling edge of RGMII_RXC. Similarly, RGMII_RXCTL carries RXDV on rising edge of RGMII_RXC and RXERR on falling edge of RGMII_RXC. Figure 7-36. CPSW2G Receive Interface Timing, RGMII operation Section 7.9.5.2.3.3, Section 7.9.5.2.3.4, and Figure 7-37 present switching characteristics for transmit - RGMII for 10 Mbps, 100 Mbps, and 1000 Mbps. 7.9.5.2.3.3 Switching Characteristics for RGMII[x]_TCLK - RGMII Mode NO. PARAMETER DESCRIPTION MODE MIN TYP MAX UNIT RGMII1 tc(TXC) Cycle time, TXC 10Mbps 360 440 ns 100Mbps 36 44 ns 1000Mbps 7.2 8.8 ns RGMII2 tw(TXCH) Pulse duration, TXC high 10Mbps 160 240 ns 100Mbps 16 24 ns 1000Mbps 3.6 4.4 ns RGMII3 tw(TXCL) Pulse duration, TXC low 10Mbps 160 240 ns 100Mbps 16 24 ns 1000Mbps 3.6 4.4 ns 7.9.5.2.3.4 Switching Characteristics for RGMII[x]_TD[3:0], and RGMII[x]_TX_CTL - RGMII Mode NO. PARAMETER MODE MIN TYP MAX UNIT RGMII9 tosu(TD-TXC) Output setup time, RGMII[x]_TD[3:0] valid to RGMII[x]_TXC high/low 10/100 Mbps 1.2 ns 1000 Mbps 1.05(1) ns tosu(TX_CTL-TXC) Output setup time, RGMII[x]_TX_CTL valid to RGMII[x]_TXC high/low 10/100 Mbps 1.2 ns 1000 Mbps 1.05(1) ns www.ti.com AM6548, AM6528, AM6546, AM6526 SPRSP52B – DECEMBER 2019 – REVISED JUNE 2021 Copyright © 2022 Texas Instruments Incorporated Submit Document Feedback 169 Product Folder Links: AM6548 AM6528 AM6546 AM6526 |
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