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AM2732 Datasheet(PDF) 71 Page - Texas Instruments |
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AM2732 Datasheet(HTML) 71 Page - Texas Instruments |
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71 / 114 page  • Synchronous trigger output allowing Ethernet to trigger CSI data frames 6.12.3.3.1 RGMII/GMII/MII Timing Conditions SPECIFIC ATION NUMBER PARAMETER MIN TYP MAX UNIT Input Conditions 1 tR Input rise time 1 3 ns 2 tF Input fall time 1 3 ns Output Conditions 3 CLOAD Output load capacitance 2 20 pF 6.12.3.3.2 RGMII Transmit Clock Switching Characteristics NO. PARAMETER DESCRIPTION SPEED MIN MAX UNIT 1 tc(TXC) Cycle time, rgmiin_txc 10 Mbps 360 440 ns 100 Mbps 36 44 ns 2 tw(TXCH) Pulse duration, rgmiin_txc high 10 Mbps 160 240 ns 100 Mbps 16 24 ns 3 tw(TXCL) Pulse duration, rgmiin_txc low 10 Mbps 160 240 ns 100 Mbps 16 24 ns 4 tt(TXC) Transition time, rgmiin_txc 10 Mbps 0.75 ns 100 Mbps 0.75 ns 6.12.3.3.3 RGMII Transmit Data and Control Switching Characteristics NO.(1) PARAMETER DESCRIPTION MODE MIN MAX UNIT 5 tosu(TXD-TXC) Output Setup time, transmit selected signals valid to MSS_RGMII_TCLK high/low RGMII, Internal Delay Enabled, 10/100 Mbps 1.2 ns 6 toh(TXC-TXD) Output Hold time, transmit selected signals valid after MSS_RGMII_TCLK high/low RGMII, Internal Delay Enabled, 10/100 Mbps 1.2 ns (1) For RGMII, transmit selected signals include: MSS_RGMII_TXD[3:0] and MSS_RGMII_TCTL. rgmii _txc n (A) rgmii _txd n [3:0] (B) rgmii _txctl n (B) 5 1st Half-byte TXERR TXEN 2nd Half-byte 4 4 2 3 1 6 [internal delay enabled] A. TXC is delayed internally before being driven to the rgmiin_txc pin. This internal delay is always enabled. B. Data and control information is transmitted using both edges of the clocks. rgmiin_txd[3:0] carries data bits 3-0 on the rising edge of rgmiin_txc and data bits 7-4 on the falling edge of rgmiin_txc. Similarly, rgmiin_txctl carries TXEN on rising edge of rgmiin_txc and TXERR of falling edge of rgmiin_txc. Figure 6-11. RGMII Transmit Interface Switching Characteristics www.ti.com AM2732, AM2732-Q1 SWRS245B – DECEMBER 2021 – REVISED DECEMBER 2023 Copyright © 2023 Texas Instruments Incorporated Submit Document Feedback 71 Product Folder Links: AM2732 AM2732-Q1 |
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