SNLS579A April   2018  – November 2018 DP83TC811S-Q1

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
    1.     Device Images
      1.      Simplified Schematic
  4. Revision History
  5. Device Comparison Table
  6. Pin Configuration and Functions
    1.     Pin Functions
    2. 6.1 Pin Multiplexing
  7. Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 Timing Diagrams
    8. 7.8 Typical Characteristics
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Wake-on-LAN (WoL) Packet Detection
        1. 8.3.1.1 Magic Packet Structure
        2. 8.3.1.2 Magic Packet Example
        3. 8.3.1.3 Wake-on-LAN Configuration and Status
      2. 8.3.2 Start of Frame Detect for IEEE 1588 Time Stamp
      3. 8.3.3 Diagnostic Tool Kit
        1. 8.3.3.1 Signal Quality Indicator
        2. 8.3.3.2 Electrostatic Discharge Sensing
        3. 8.3.3.3 Time Domain Reflectometry
        4. 8.3.3.4 Temperature and Voltage Sensing
        5. 8.3.3.5 Built-In Self-Test
        6. 8.3.3.6 Loopback Modes
          1. 8.3.3.6.1 xMII Loopback
          2. 8.3.3.6.2 PCS Loopback
          3. 8.3.3.6.3 Analog Loopback
          4. 8.3.3.6.4 Reverse Loopback
      4. 8.3.4 Compliance Test Modes
        1. 8.3.4.1 Test Mode 1
        2. 8.3.4.2 Test Mode 2
        3. 8.3.4.3 Test Mode 4
        4. 8.3.4.4 Test Mode 5
    4. 8.4 Device Functional Modes
      1. 8.4.1  Power Down
      2. 8.4.2  Reset
      3. 8.4.3  Disable
      4. 8.4.4  Standby
      5. 8.4.5  Normal
      6. 8.4.6  Sleep Request
      7. 8.4.7  Silent
      8. 8.4.8  Sleep
      9. 8.4.9  Low-Power Sleep
      10. 8.4.10 Wake-Up
      11. 8.4.11 State Transitions
        1. 8.4.11.1 State Transition #1 - Standby to Normal
        2. 8.4.11.2 State Transition #2 - Normal to Standby
        3. 8.4.11.3 State Transition #3 - Normal to Sleep Request
        4. 8.4.11.4 State Transition #4 - Sleep Request to Normal
        5. 8.4.11.5 State Transition #5 - Sleep Request to Standby
        6. 8.4.11.6 State Transition #6 - Sleep Request to Silent
        7. 8.4.11.7 State Transition #7 - Silent to Standby
        8. 8.4.11.8 State Transition #8 - Silent to Sleep
      12. 8.4.12 Media Dependent Interface
        1. 8.4.12.1 100BASE-T1 Master and 100BASE-T1 Slave Configuration
        2. 8.4.12.2 Auto-Polarity Detection and Correction
        3. 8.4.12.3 Jabber Detection
        4. 8.4.12.4 Interleave Detection
      13. 8.4.13 MAC Interfaces
        1. 8.4.13.1 Media Independent Interface
        2. 8.4.13.2 Reduced Media Independent Interface
        3. 8.4.13.3 Reduced Gigabit Media Independent Interface
        4. 8.4.13.4 Serial Gigabit Media Independent Interface
      14. 8.4.14 Serial Management Interface
      15. 8.4.15 Direct Register Access
      16. 8.4.16 Extended Register Space Access
      17. 8.4.17 Write Address Operation
        1. 8.4.17.1 MMD1 - Write Address Operation
      18. 8.4.18 Read Address Operation
        1. 8.4.18.1 MMD1 - Read Address Operation
      19. 8.4.19 Write Operation (No Post Increment)
        1. 8.4.19.1 MMD1 - Write Operation (No Post Increment)
      20. 8.4.20 Read Operation (No Post Increment)
        1. 8.4.20.1 MMD1 - Read Operation (No Post Increment)
      21. 8.4.21 Write Operation (Post Increment)
        1. 8.4.21.1 MMD1 - Write Operation (Post Increment)
      22. 8.4.22 Read Operation (Post Increment)
        1. 8.4.22.1 MMD1 - Read Operation (Post Increment)
    5. 8.5 Programming
      1. 8.5.1 Strap Configuration
      2. 8.5.2 LED Configuration
      3. 8.5.3 PHY Address Configuration
    6. 8.6 Register Maps
      1. 8.6.1   Register Access Summary
      2. 8.6.2   BMCR Register 0x0000 – Basic Mode Control Register
        1. Table 26. BMCR Field Descriptions
      3. 8.6.3   BMSR Register 0x0001 – Basic Mode Status Register
        1. Table 27. BMSR Field Descriptions
      4. 8.6.4   PHYID1 Register 0x0002 – PHY Identifier Register #1
        1. Table 28. PHYID1 Field Descriptions
      5. 8.6.5   PHYID2 Register 0x0003 – PHY Identifier Register #2
        1. Table 29. PHYID2 Field Descriptions
      6. 8.6.6   SGMII_CFG Register 0x0009 – SGMII Configuration Register
        1. Table 30. SGMII_CFG Field Descriptions
      7. 8.6.7   REGCR Register 0x000D – Register Control Register
        1. Table 31. REGCR Field Descriptions
      8. 8.6.8   ADDAR Register 0x000E – Address/Data Register
        1. Table 32. ADDAR Field Descriptions
      9. 8.6.9   INT_TEST Register 0x0011 – Interrupt Test Register
        1. Table 33. INT_TEST Field Descriptions
      10. 8.6.10  INT_STAT1 Register 0x0012 – Interrupt Status Register #1
        1. Table 34. INT_STAT1 Field Descriptions
      11. 8.6.11  INT_STAT2 Register 0x0013 – Interrupt Status Register #2
        1. Table 35. INT_STAT2 Field Descriptions
      12. 8.6.12  FCSCR Register 0x0014 – False Carrier Sense Counter Register
        1. Table 36. FCSCR Field Descriptions
      13. 8.6.13  RECR Register 0x0015 – Receive Error Count Register
        1. Table 37. RECR Field Descriptions
      14. 8.6.14  BISTCR Register 0x0016 – BIST Control Register
        1. Table 38. BISTCR Field Descriptions
      15. 8.6.15  xMII_CTRL Register 0x0017 – xMII Control Register
        1. Table 39. xMII_CTRL Field Descriptions
      16. 8.6.16  INT_STAT3 Register 0x0018 – Interrupt Status Register #3
        1. Table 40. INT_STAT3 Field Descriptions
      17. 8.6.17  BICTSR1 Register 0x001B – BIST Control and Status Register #1
        1. Table 41. BICTSR1 Field Descriptions
      18. 8.6.18  BICTSR2 Register 0x001C – BIST Control and Status Register #2
        1. Table 42. BICTSR2 Field Description
      19. 8.6.19  TDR Register 0x001E – Time Domain Reflectometry Register
        1. Table 43. TDR Field Descriptions
      20. 8.6.20  PHYRCR Register 0x001F – PHY Reset Control Register
        1. Table 44. PHYRCR Field Descriptions
      21. 8.6.21  LSR Register 0x0133 – Link Status Results Register
        1. Table 45. LSR Field Descriptions
      22. 8.6.22  TDRR Register 0x016B – TDR Results Register
        1. Table 46. TDRR Field Descriptions
      23. 8.6.23  TDRLR1 Register 0x0180 – TDR Location Result Register #1
        1. Table 47. TDRLR1 Field Descriptions
      24. 8.6.24  TDRLR2 Register 0x0181 – TDR Location Result Register #2
        1. Table 48. TDRLR2 Field Descriptions
      25. 8.6.25  TDRPT Register 0x018A – TDR Peak Type Register
        1. Table 49. TDRPT Field Descriptions
      26. 8.6.26  AUTO_PHY Register 0x018B – Autonomous PHY Control Register
        1. Table 50. AUTO_PHY Field Descriptions
      27. 8.6.27  PWRM Register 0x018C – Power Mode Register
        1. Table 51. PWRM Register 0x018C – Power Mode Register
      28. 8.6.28  SNR Register 0x0197 – Signal-to-Noise Ratio Result Register
        1. Table 52. SNR Field Descriptions
      29. 8.6.29  SQI Register 0x0198 – Signal Quality Indication Register
        1. Table 53. SQI Field Descriptions
      30. 8.6.30  LD_CTRL Register 0x0400 – Line Driver Control Register
        1. Table 54. LD_CTRL Field Descriptions
      31. 8.6.31  LDG_CTRL1 Register 0x0401 – Line Driver Gain Control Register #1
        1. Table 55. LDG_CTRL1 Field Descriptions
      32. 8.6.32  SGMII_CTRL1 Register 0x0432 – SGMII Control Register #1
        1. Table 56. SGMII_CTRL1 Field Descriptions
      33. 8.6.33  DLL_CTRL 0x0446 – RGMII DLL Control Register
        1. Table 57. DLL_CTRL Field Descriptions
      34. 8.6.34  ESDS Register 0x0448 – Electrostatic Discharge Status Register
        1. Table 58. ESDS Field Descriptions
      35. 8.6.35  SGMII_AUTO_TIMER Register 0x0456 – SGMII Auto-Negotiation Timer Configuration Register
        1. Table 59. SGMII_AUTO_TIMER Field Descriptions
      36. 8.6.36  SGMII_STAT Register 0x0459 – SGMII Auto-Negotiation Status Register
        1. Table 60. SGMII_STAT Field Descriptions
      37. 8.6.37  LED_CFG1 Register 0x0460 – LED Configuration Register #1
        1. Table 61. LED_CFG1 Field Descriptions
      38. 8.6.38  xMII_IMP_CTRL Register 0x0461 – xMII Impedance Control Register
        1. Table 62. xMII_IMP_CTRL Field Descriptions
      39. 8.6.39  IO_CTRL1 Register 0x0462 – GPIO Control Register #1
        1. Table 63. IO_CTRL1 Field Descriptions
      40. 8.6.40  IO_CTRL2 Register 0x0463 – GPIO Control Register #2
        1. Table 64. IO_CTRL2 Field Descriptions
      41. 8.6.41  STRAP Register 0x0467 – Strap Configuration Register
        1. Table 65. STRAP Field Descriptions
      42. 8.6.42  LED_CFG2 Register 0x0469 – LED Configuration Register #2
        1. Table 66. LED_CFG2 Field Descriptions
      43. 8.6.43  PLR_CFG Register 0x0475 – Polarity Auto-Correction Configuration Register
        1. Table 67. PLR_CFG1 Field Descriptions
      44. 8.6.44  MON_CFG1 Register 0x0480 – Monitor Configuration Register #1
        1. Table 68. MON_CFG1 Field Descriptions
      45. 8.6.45  MON_CFG2 Register 0x0481 – Monitor Configuration Register #2
        1. Table 69. MON_CFG2 Field Descriptions
      46. 8.6.46  MON_CFG3 Register 0x0482 – Monitor Configuration Register #3
        1. Table 70. MON_CFG3 Field Descriptions
      47. 8.6.47  MON_STAT1 Register 0x0483 – Monitor Status Register #1
        1. Table 71. MON_STAT1 Field Descriptions
      48. 8.6.48  MON_STAT2 Register 0x0484 – Monitor Status Register #2
        1. Table 72. MON_STAT2 Field Descriptions
      49. 8.6.49  PCS_CTRL1 Register 0x0485 – PCS Control Register #1
        1. Table 73. PCS_CTRL1 Field Descriptions
      50. 8.6.50  PCS_CTRL2 Register – 0x0486 PCS Control Register #2
        1. Table 74. PCS_CTRL2 Field Descriptions
      51. 8.6.51  LPS_CTRL2 Register 0x0487 – LPS Control Register #2
        1. Table 75. LPS_CTRL2 Register 0x0487 – LPS Control Register #2
      52. 8.6.52  INTER_CFG Register 0x0489 – Interleave Configuration
        1. Table 76. INTER_CFG Field Descriptions
      53. 8.6.53  LPS_CTRL3 Register 0x0493 – LPS Control Register #3
        1. Table 77. LPS_CTRL3 Register 0x0493 – LPS Control Register #3
      54. 8.6.54  JAB_CFG Register 0x0496 – Jabber Configuration Register
        1. Table 78. JAB_CFG Field Descriptions
      55. 8.6.55  TEST_MODE_CTRL Register 0x0497 – Test Mode Control Register
        1. Table 79. TEST_MODE_CTRL Field Descriptions
      56. 8.6.56  WOL_CFG Register 0x04A0 – WoL Configuration Register
        1. Table 80. WOL_CFG Field Descriptions
      57. 8.6.57  WOL_STAT Register 0x04A1 – WoL Status Register
        1. Table 81. WOL_STAT Field Descriptions
      58. 8.6.58  WOL_DA1 Register 0x04A2 – WoL Destination Address Configuration Register #1
        1. Table 82. WOL_DA1 Field Descriptions
      59. 8.6.59  WOL_DA2 Register 0x04A3 – WoL Destination Address Configuration Register #2
        1. Table 83. WOL_DA2 Field Descriptions
      60. 8.6.60  WOL_DA3 Register 0x04A4 – WoL Destination Address Configuration Register #3
        1. Table 84. WOL_DA3 Field Descriptions
      61. 8.6.61  RXSOP1 Register 0x04A5 – Receive Secure-ON Password Register #1
        1. Table 85. RXSOP1 Field Descriptions
      62. 8.6.62  RXSOP2 Register 0x04A6 – Receive Secure-ON Password Register #2
        1. Table 86. RXSOP2 Field Descriptions
      63. 8.6.63  RXSOP3 Register 0x04A7 – Receive Secure-ON Password Register #3
        1. Table 87. RXSOP3 Field Descriptions
      64. 8.6.64  RXPAT1 Register 0x04A8 – Receive Pattern Register #1
        1. Table 88. RXPAT1 Field Descriptions
      65. 8.6.65  RXPAT2 Register 0x04A9 – Receive Pattern Register #2
        1. Table 89. RXPAT2 Field Descriptions
      66. 8.6.66  RXPAT3 Register 0x04AA – Receive Pattern Register #3
        1. Table 90. RXPAT3 Field Descriptions
      67. 8.6.67  RXPAT4 Register 0x04AB – Receive Pattern Register #4
        1. Table 91. RXPAT4 Field Descriptions
      68. 8.6.68  RXPAT5 Register 0x04AC – Receive Pattern Register #5
        1. Table 92. RXPAT5 Field Descriptions
      69. 8.6.69  RXPAT6 Register 0x04AD – Receive Pattern Register #6
        1. Table 93. RXPAT6 Field Descriptions
      70. 8.6.70  RXPAT7 Register 0x04AE – Receive Pattern Register #7
        1. Table 94. RXPAT7 Field Descriptions
      71. 8.6.71  RXPAT8 Register 0x04AF – Receive Pattern Register #8
        1. Table 95. RXPAT8 Field Descriptions
      72. 8.6.72  RXPAT9 Register 0x04B0 – Receive Pattern Register #9
        1. Table 96. RXPAT9 Field Descriptions
      73. 8.6.73  RXPAT10 Register 0x04B1 – Receive Pattern Register #10
        1. Table 97. RXPAT10 Field Descriptions
      74. 8.6.74  RXPAT11 Register 0x04B2 Receive Pattern Register #11
        1. Table 98. RXPAT11 Field Descriptions
      75. 8.6.75  RXPAT12 Register 0x04B3 – Receive Pattern Register #12
        1. Table 99. RXPAT12 Field Descriptions
      76. 8.6.76  RXPAT13 Register 0x04B4 – Receive Pattern Register #13
        1. Table 100. RXPAT13 Field Descriptions
      77. 8.6.77  RXPAT14 Register 0x04B5 – Receive Pattern Register #14
        1. Table 101. RXPAT14 Field Descriptions
      78. 8.6.78  RXPAT15 Register 0x04B6 – Receive Pattern Register #15
        1. Table 102. RXPAT15 Field Descriptions
      79. 8.6.79  RXPAT16 Register 0x04B7 – Receive Pattern Register #16
        1. Table 103. RXPAT16 Field Descriptions
      80. 8.6.80  RXPAT17 Register 0x04B8 – Receive Pattern Register #17
        1. Table 104. RXPAT17 Field Descriptions
      81. 8.6.81  RXPAT18 Register 0x04B9 – Receive Pattern Register #18
        1. Table 105. RXPAT18 Field Descriptions
      82. 8.6.82  RXPAT19 Register 0x04BA Receive Pattern Register #19
        1. Table 106. RXPAT19 Field Descriptions
      83. 8.6.83  RXPAT20 Register 0x04BB – Receive Pattern Register #20
        1. Table 107. RXPAT20 Field Descriptions
      84. 8.6.84  RXPAT21 Register 0x04BC – Receive Pattern Register #21
        1. Table 108. RXPAT21 Field Descriptions
      85. 8.6.85  RXPAT22 Register 0x04BD – Receive Pattern Register #22
        1. Table 109. RXPAT22 Field Descriptions
      86. 8.6.86  RXPAT23 Register 0x04BE – Receive Pattern Register #23
        1. Table 110. RXPAT23 Field Descriptions
      87. 8.6.87  RXPAT24 Register 0x04BF – Receive Pattern Register #24
        1. Table 111. RXPAT24 Field Descriptions
      88. 8.6.88  RXPAT25 Register 0x04C0 – Receive Pattern Register #25
        1. Table 112. RXPAT25 Field Descriptions
      89. 8.6.89  RXPAT26 Register 0x04C1 – Receive Pattern Register #26
        1. Table 113. RXPAT26 Field Descriptions
      90. 8.6.90  RXPAT27 Register 0x04C2 Receive Pattern Register #27
        1. Table 114. RXPAT27 Field Descriptions
      91. 8.6.91  RXPAT28 Register 0x04C3 – Receive Pattern Register #28
        1. Table 115. RXPAT28 Field Descriptions
      92. 8.6.92  RXPAT29 Register 0x04C4 – Receive Pattern Register #29
        1. Table 116. RXPAT29 Field Descriptions
      93. 8.6.93  RXPAT30 Register 0x04C5 – Receive Pattern Register #30
        1. Table 117. RXPAT30 Field Descriptions
      94. 8.6.94  RXPAT31 Register 0x04C6 – Receive Pattern Register #31
        1. Table 118. RXPAT31 Field Descriptions
      95. 8.6.95  RXPAT32 Register 0x04C7 – Receive Pattern Register #32
        1. Table 119. RXPAT32 Field Descriptions
      96. 8.6.96  RXPBM1 Register 0x04C8 – Receive Pattern Byte Mask Register #1
        1. Table 120. RXPBM1 Field Descriptions
      97. 8.6.97  RXPBM2 Register 0x04C9 – Receive Pattern Byte Mask Register #2
        1. Table 121. RXPBM2 Field Descriptions
      98. 8.6.98  RXPBM3 Register 0x04CA – Receive Pattern Byte Mask Register #3
        1. Table 122. RXPBM3 Field Descriptions
      99. 8.6.99  RXPBM4 Register 0x04CB – Receive Pattern Byte Mask Register #4
        1. Table 123. RXPBM4 Field Descriptions
      100. 8.6.100 RXPATC Register 0x04CC – Receive Pattern Control Register
        1. Table 124. RXPATC Field Descriptions
      101. 8.6.101 RXD3CLK Register 0x04E0 – RX_D3 Clock Control Register
        1. Table 125. RXD3CLK Field Descriptions
      102. 8.6.102 LPS_CFG Register 0x04E5 – LPS Configuration Register
        1. Table 126. LPS_CFG Register 0x04E5 – LPS Configuration Register
      103. 8.6.103 PMA_CTRL1 Register 0x0007 – MMD1 PMA Control Register #1
        1. Table 127. PMA_CTRL1 Field Descriptions
      104. 8.6.104 PMA_EXT1 Register 0x000B – MMD1 PMA Extended Ability Register #1
        1. Table 128. PMA_EXT1 Field Descriptions
      105. 8.6.105 PMA_EXT2 Register 0x0012 – MMD1 PMA Extended Ability Register #2
        1. Table 129. PMA_EXT2 Field Descriptions
      106. 8.6.106 PMA_CTRL2 Register 0x0834 – MMD1 PMA Control Register #2
        1. Table 130. PMA_CTRL2 Field Descriptions
      107. 8.6.107 TEST_CTRL Register 0x0836 – MMD1 100BASE-T1 PMA Test Control Register
        1. Table 131. TEST_CTRL Field Descriptions
  9. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Design Requirements
        1. 9.2.1.1 Physical Medium Attachment
          1. 9.2.1.1.1 Common-Mode Choke Recommendations
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Signal Traces
      2. 11.1.2 Return Path
      3. 11.1.3 Metal Pour
      4. 11.1.4 PCB Layer Stacking
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Receiving Notification of Documentation Updates
    2. 12.2 Community Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

Pin Configuration and Functions

RND Package
36-Pin VQFN
Top View
DP83TC811S-Q1 pin_map_DP83TC811_SGMII_snls551.gif

Pin Functions(2)

PIN STATE(1) DESCRIPTION
NAME NO.
MAC INTERFACE

RX_D











3
RX_M

23 S, PD, O

Receive Data: Symbols received on the cable are decoded and transmitted out of these pins synchronous to the rising edge of RX_CLK. They contain valid data when RX_DV is asserted. A data nibble, RX_D[3:0], is transmitted in MII and RGMII modes. 2 bits; RX_D[1:0], are transmitted in RMII mode. RX_D[3:2] are not used when in RMII mode.

If the PHY is bootstrapped to RMII Master mode, a 50-MHz clock reference is automatically outputted on RX_D3. This clock should be fed to the MAC.

RX_M / RX_P: Differential SGMII Data Output. These pins transmit data from the PHY to the MAC. This data is synchronous to the differential SGMII clock output.

RXCLK_M / RXCLK_P: Differential SGMII Clock Output. This signal is a continuous 625-MHz clock signal driven by the PHY in 6-wire SGMII mode. (configurable through register access)

RX_D2
RX_P

24

RX_D1
RXCLK_M

25

RX_D0
RXCLK_P

26
RX_CLK 27 O

Receive Clock: In MII and RGMII modes, the receive clock provides a 25-MHz reference clock.

Unused in RMII and SGMII modes



RX_ER 14 S, PD, O

Receive Error: In MII and RMII modes, this pin indicates a receive error symbol has been detected within a received packet. In MII mode, RX_ER is asserted high synchronously to the rising edge of RX_CLK. In RMII mode, RX_ER is asserted high synchronously to the rising edge of the reference clock. This pin is not required to be used by the MAC in MII or RMII because the PHY will automatically corrupt data on a receive error.

Unused in RGMII and SGMII modes



RX_DV
CRS_DV
RX_CTRL
15 S, PD, O

Receive Data Valid: This pin indicates when valid data is presented on RX_D[3:0] for MII mode.

Carrier Sense Data Valid: This pin combines carrier sense and data valid into an asynchronous signal. When CRS_DV is asserted, data is presented on RX_D[1:0] in RMII mode.

RGMII Receive Control: Receive control combines receive data valid indication and receive error indication into a single signal. RX_DV is presented on the rising edge of RX_CLK and RX_ER is presented on the falling edge of RX_CLK.

Unused in SGMII mode

TX_CLK 28 PD, I, O

Transmit Clock: In MII mode, the transmit clock is a 25-MHz output and has constant phase referenced to the reference clock. In RGMII mode, this clock is sourced from the MAC layer to the PHY. A 25-MHz clock should be provided (not required to have constant phase to the reference clock unless synchronous RGMII is enabled in xMII_CTRL Register 0x0017 – xMII Control Register).

Unused in RMII and SGMII modes



TX_EN
TX_CTRL
29 PD, I

Transmit Enable: In MII mode, transmit enable is presented prior to the rising edge of the transmit clock. TX_EN indicates the presence of valid data inputs on TX_D[3:0]. In RMII mode, transmit enable is presented prior to the rising edge of the reference clock. TX_EN indicates the presence of valid data inputs on TX_D[1:0].

RGMII Transmit Control: Transmit control combines transmit enable and transmit error indication into a single signal. TX_EN is presented prior to the rising edge of TX_CLK; TX_ER is presented prior to the falling edge of TX_CLK.

Unused in SGMII mode

TX_D3 30 PD, I

Transmit Data: In MII and RGMII modes, the transmit data nibble, TX_D[3:0], is received from the MAC prior to the rising edge of TX_CLK. In RMII mode, TX_D[1:0] is received from the MAC prior to the rising edge of the reference clock. TX_D[3:2] are not used in RMII mode.

TX_M / TX_P: Differential SGMII Data Input. These pins receive data that is transmitted from the MAC to the PHY.

TX_D2 31

TX_D1
TX_P

32

TX_D0
TX_M

33
TX_ER 34 PD, I

Transmit Error: In MII mode, this pin indicates a transmit error symbol has been detected within a transmitted packet. TX_ER is received prior to the rising edge of TX_CLK.

Unused in RMII, RGMII and SGMII modes



SERIAL MANAGEMENT INTERFACE
MDC 1 I

Management Data Clock: Synchronous clock to the MDIO serial management input and output data. This clock may be asynchronous to the MAC transmit and receive clocks. The maximum clock rate is 25 MHz. There is no minimum clock rate.

MDIO 36 OD, IO

Management Data Input/Output: Bidirectional management data signal that may be sourced by the management station or the PHY. This pin requires a pullup resistor.

Recommended to use a resistor between 2.2 kΩ and 9 kΩ.

CONTROL INTERFACE
INT 2 PU, OD, O

Interrupt: Active-LOW output, which will be asserted LOW when an interrupt condition occurs. This pin has a weak internal pullup. Register access is necessary to enable various interrupt triggers. Once an interrupt event flag is set, register access is required to clear the interrupt event.

Note: Power-on-RESET (POR) Done interrupt is enabled by default. POR Done interrupt can be cleared by reading register INT_STAT3 Register 0x0018 – Interrupt Status Register #3.

This pin can be configured as an Active-HIGH output using register INT_TEST Register 0x0011 – Interrupt Test Register.

RESET 3 PU, I

Reset: Active-LOW input, which initializes or reinitializes the DP83TC811S-Q1. Asserting this pin LOW for at least 1 μs will force a reset process to occur. All internal registers will reinitialize to their default states as specified for each bit in the Register Maps section. All bootstrap pins are resampled upon deassertion of reset.

EN 7 PD, I

Enable: Active-HIGH input, which will disable the DP83TC811S-Q1 when pulled LOW and power down all internal blocks. Disable state is equivalent to a power-down state.

This pin can be directly tied to VDDIO; enabling the device.

WAKE 8 PD, I

WAKE: Active-HIGH input, which wakes the PHY from SLEEP. Asserting this pin HIGH at power-up will prevent the PHY from going to SLEEP.

This pin can be directly tied to VDDIO to wake the device.

INH 10 O

INH: Active-HIGH output, which will be asserted HIGH when the PHY is in SLEEP or DISABLED. This pin is LOW for all other PHY states.

CLOCK INTERFACE
XI 5 I

Reference Clock Input (MII / RGMII / SGMII): Reference clock 25-MHz crystal or oscillator input. The device supports either an external crystal resonator connected across pins XI and XO, or an external CMOS-level oscillator connected to pin XI only and XO left floating.

Reference Clock Input (RMII): Reference clock 50-MHz CMOS-level oscillator in RMII Slave mode. Reference clock 25-MHz crystal or oscillator in RMII Master mode.

This is a fail-safe pin. When the PHY is not powered, an external oscillator is allowed to be powered and driving into this pin. Fail-safe prevents pin back-driving.

XO 4 O

Reference Clock Output: XO pin is used for crystal only. This pin should be left floating when a CMOS-level oscillator is connected to XI.

LED/GPIO INTERFACE
LED_0 / GPIO_0 35 S, PD, IO

LED_0: Link Status

LED_1 / GPIO_1 6 S, PD, IO

LED_1: Link Status and BLINK for TX/RX Activity

CLKOUT / GPIO_2 16 IO

Clock Output: 25-MHz reference clock

MEDIUM DEPENDENT INTERFACE
TRD_M 13 IO

Differential Transmit and Receive: Bidirectional differential signaling configured for 100BASE-T1 operation, IEEE 802.3bw compliant.

TRD_P 12
JTAG (IEEE 1149.1)
TCK 17 PU, I

Test Clock: Primary clock source for all test logic input and output. This pin is controlled by the testing entity.

This pin can be left unconnected if not used.

TDO 18 O

Test Data Output: Test results are scanned out.

This pin can be left unconnected if not used.

TMS 19 PU, I

Test Mode Select: Sequences the Tap Controller (16-state FSM) to select the desired test instruction. TI recommends applying three clock cycles with TMS HIGH to reset JTAG.

This pin can be left unconnected if not used.

TDI 20 PU, I

Test Data Input: Test data is scanned into the device.

This pin can be left unconnected if not used.

POWER CONNECTIONS
VDDA 11 SUPPLY

Core Supply: 3.3 V

Recommend using 10-nF, 100-nF, 1-µF, and 10-µF ceramic decoupling capacitors; optional ferrite bead.

VDDIO 22 SUPPLY

IO Supply: 1.8 V, 2.5 V, or 3.3 V

Recommend using 10-nF, 100-nF, 1-µF, and 10-µF ceramic decoupling capacitors; optional ferrite bead.

GROUND DAP GROUND

Ground

DO NOT CONNECT
DNC 9

DNC: Do not connect (leave floating)

DNC 21

DNC: Do not connect (leave floating)

Pin Type:
I = Input
O = Output
IO = Input/Output
OD = Open Drain
PD = Internal pulldown
PU = Internal pullup
S = Bootstrap configuration pin (all configuration pins have weak internal pullups or pulldowns)
When pins are unused, follow the recommended connection requirements provided in the table above. If pins do not have required termination, they may be left floating.

Table 1. Pin States(1)

PIN
NAME
POWER-UP / RESET NORMAL OPERATION: MII / RMII / RGMII / SGMII
PIN STATE PULL TYPE PULL VALUE
(kΩ)
PIN STATE PULL TYPE PULL VALUE
(kΩ)
MDC I none none I none none
INT I PU 9 OD, O PU 9
RESET I PU 9 I PU 9
XO O none none O none none
XI I none none I none none
LED_1 HI-Z PD 9 O none none
EN I PD 500 I PD 500
WAKE I PD 500 I PD 500
DNC FLOAT none none FLOAT none none
INH O none none O none none
VDDA SUPPLY none none SUPPLY none none
TRD_P IO none none IO none none
TRD_M IO none none IO none none
RX_ER HI-Z PD 9 O none none
RX_DV HI-Z PD 9 O none none
CLKOUT O none none O none none
TCK I PU 9 I PU 9
TDO O none none O none none
TMS I PU 9 I PU 9
TDI I PU 9 I PU 9
DNC FLOAT none none FLOAT none none
VDDIO SUPPLY none none SUPPLY none none
RX_D3 HI-Z PD 9 O none none
RX_D2 HI-Z PD 9 O none none
RX_D1 HI-Z PD 9 O none none
RX_D0 HI-Z PD 9 O none none
RX_CLK O none none O none none
TX_CLK I PD 9 O
I(2)
none
PD(2)
none
9(2)
TX_EN I PD 9 I PD 9
TX_D3 I PD 9 I PD 9
TX_D2 I PD 9 I PD 9
TX_D1 I PD 9 I PD 9
TX_D0 I PD 9 I PD 9
TX_ER I PD 9 I PD 9
LED_0 HI-Z PD 9 O none none
MDIO OD, IO none none OD, IO none none
Type: I = Input
O = Output
IO = Input/Output
OD = Open Drain
PD = Internal pulldown
PU = Internal pullup
Pin operation only for RGMII operation.