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DP83867CS 数据表(PDF) 86 Page - Texas Instruments |
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DP83867CS 数据表(HTML) 86 Page - Texas Instruments |
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86 / 129 page  7.6.53 SGMII Control Register 1 (SGMIICTL1) Table 7-63. SGMII Control Register 1 (SGMIICTL1), Address 0x00D3 BIT BIT NAME DEFAULT DESCRIPTION 15 RESERVED 0, RO RESERVED: Writes ignored, read as 0. 14 SGMII_TYPE 0, RW SGMII Configuration: 1 = 6-wire mode. Enable differential SGMII clock to MAC. 0 = 4-wire mode 13:0 RESERVED 0, RO RESERVED: Writes ignored, read as 0. 7.6.54 Sync FIFO Control (SYNC_FIFO_CTRL) Table 7-64. Sync FIFO Control (SYNC_FIFO_CTRL), Address 0x00E9 BIT BIT NAME DEFAULT DESCRIPTION 15:0 RESERVED 0x9F22, RW RESERVED 7.6.55 Loopback Configuration Register (LOOPCR) Table 7-65. Loopback Configuration Register (LOOPCR), Address 0x00FE BIT BIT NAME DEFAULT DESCRIPTION 15:0 LOOP_CFG_VAL 1110 0111 0010 0001, RW Loopback Configuration Value: 1110 0111 0010 000: Configuration for loopback modes. A software reset through bit 14 of the Control Register (CTRL), address 0x001F, is required after changes to this register value. Other values for this register are not recommended. 7.6.56 DSP Configuration (DSP_CONFIG) Table 7-66. DSP Configuration (DSP_CONFIG), Address 0x0100 BIT BIT NAME DEFAULT DESCRIPTION 15:0 DSP_CONFIG 0x051C, RW DSP Configuration. Value 0x1027 can further improve the immunity margins during EMC testing. 7.6.57 DSP Feedforward Equalizer Configuration (DSP_FFE_CFG) Certain applications can need this register to be configured to 0x0E81 to improve Short Cable performance. Changing this register to 0x0E81, does not effect Long Cable performance. Table 7-67. DSP Feedforward Equalizer Configuration (DSP_FFE_CFG), Address 0x012C BIT BIT NAME DEFAULT DESCRIPTION 15:10 RESERVED 0000 11, RO RESERVED 9:0 FFE_EQ 00 0010 1101, RW FFE Equalizer Configuration Set this field to 10 1000 0001 when using cables of length <= 1m. DP83867CS, DP83867IS, DP83867E SNLS504F – OCTOBER 2015 – REVISED JANUARY 2025 www.ti.com 86 Submit Document Feedback Copyright © 2025 Texas Instruments Incorporated Product Folder Links: DP83867CS DP83867IS DP83867E |
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