SNLS742A September 2023 – April 2024 DP83TC811-Q1
PRODUCTION DATA
The DP83TC811-Q1 uses functional pins as strap options to place the device into specific modes of operation. The values of these pins are sampled at power up and hardware reset (through either the RESET pin or register access). The strap pins support 4 levels, which are described in greater detail below. Configuration of the device may be done through 4-level strapping or through serial management interface.
Because strap pins are functional pins after reset is deasserted, they should not be connected directly to VDDIO or GND. Either pullup resistors, pulldown resistors, or both are required for proper operation.
MODE | IDEAL RH (kΩ) | IDEAL RL (kΩ) |
---|---|---|
1 | OPEN | OPEN |
2 | 10 | 2.49 |
3 | 5.76 | 2.49 |
4 | 2.49 | OPEN |
The following table describes the DP83TC811-Q1 configuration bootstraps:
PIN NAME | PIN NO. | DEFAULT MODE | STRAP FUNCTION | DESCRIPTION | ||
---|---|---|---|---|---|---|
RX_DV | 15 | 1 | MODE | PHY_AD[0] | PHY_AD[2] | PHY_AD: PHY Address ID |
1 | 0 | 0 | ||||
2 | 0 | 1 | ||||
3 | 1 | 1 | ||||
4 | 1 | 0 | ||||
RX_ER | 14 | 1 | MODE | PHY_AD[1] | PHY_AD[3] | PHY_AD: PHY Address ID |
1 | 0 | 0 | ||||
2 | 0 | 1 | ||||
3 | 1 | 1 | ||||
4 | 1 | 0 | ||||
RX_D0 | 26 | 1 | MODE | MAC[0] | TEST[0] | MAC: MAC Interface Selection
TEST: Test Mode Selection |
1 | 0 | 0 | ||||
2 | 0 | 1 | ||||
3 | 1 | 1 | ||||
4 | 1 | 0 | ||||
RX_D1 | 25 | 1 | MODE | MAC[1] | TEST[1] | MAC: MAC Interface Selection
TEST: Test Mode Selection |
1 | 0 | 0 | ||||
2 | 0 | 1 | ||||
3 | 1 | 1 | ||||
4 | 1 | 0 | ||||
RX_D2 | 24 | 1 | MODE | MAC[2] | TEST[2] | MAC: MAC Interface Selection
TEST: Test Mode Selection |
1 | 0 | 0 | ||||
2 | 0 | 1 | ||||
3 | 1 | 1 | ||||
4 | 1 | 0 | ||||
RX_D3 | 23 | 1 | MODE | RESERVED | RESERVED | RX_D3 must be strapped to MODE 1 |
1 | 0 | 0 | ||||
Reserved | ||||||
Reserved | ||||||
Reserved | ||||||
LED_0 | 35 | 1 | MODE | MS | RESERVED | MS: 100BASE-T1 Master & 100BASE-T1 Slave Selection Note: LED_0 must only be set for bootstrap MODE 1 or MODE 4. |
1 | 0 | |||||
Reserved | ||||||
Reserved | ||||||
4 | 1 | |||||
LED_1 | 6 | 1 | MODE | AUTO | RESERVED | AUTO: Autonomous Disable Note 1: LED_1 must only be set for bootstrap MODE 1 or MODE 4. Note 2: Autonomous bootstrap is only active for 100BASE-T1 Master mode PHYs. This bootstrap is ignored when the PHY is bootstrapped for 100BASE-T1 Slave mode operation. |
1 | 0 | |||||
Reserved | ||||||
Reserved | ||||||
4 | 1 |
MS | DESCRIPTION |
---|---|
0 | 100BASE-T1 Slave Configuration |
1 | 100BASE-T1 Master Configuration |
MAC[2] | MAC[1] | MAC[0] | DESCRIPTION |
---|---|---|---|
0 | 0 | 0 | SGMII (4-wire) |
0 | 0 | 1 | MII |
0 | 1 | 0 | RMII Slave |
0 | 1 | 1 | RMII Master |
1 | 0 | 0 | RGMII (Align Mode) |
1 | 0 | 1 | RGMII (TX Internal Delay Mode) |
1 | 1 | 0 | RGMII (TX and RX Internal Delay Mode) |
1 | 1 | 1 | RGMII (RX Internal Delay Mode) |
TEST[2] | TEST[1] | TEST[0] | Description |
---|---|---|---|
0 | 0 | 0 | Normal Operation |
0 | 0 | 1 | Test Mode 1 |
0 | 1 | 0 | Test Mode 2 |
0 | 1 | 1 | RESERVED |
1 | 0 | 0 | Test Mode 4 |
1 | 0 | 1 | Test Mode 5 |
1 | 1 | 0 | RESERVED |
1 | 1 | 1 | RESERVED |
PHY_AD[3] | PHY_AD[2] | PHY_AD[1] | PHY_AD[0] | DESCRIPTION |
---|---|---|---|---|
0 | 0 | 0 | 0 | PHY Address: 0b00000 (0) |
0 | 0 | 0 | 1 | PHY Address: 0b00001 (1) |
0 | 0 | 1 | 0 | PHY Address: 0b00010 (2) |
0 | 0 | 1 | 1 | PHY Address: 0b00011 (3) |
0 | 1 | 0 | 0 | PHY Address: 0b00100 (4) |
0 | 1 | 0 | 1 | PHY Address: 0b00101 (5) |
0 | 1 | 1 | 0 | PHY Address: 0b00110 (6) |
0 | 1 | 1 | 1 | PHY Address: 0b00111 (7) |
1 | 0 | 0 | 0 | PHY Address: 0b01000 (8) |
1 | 0 | 0 | 1 | PHY Address: 0b01001 (9) |
1 | 0 | 1 | 0 | PHY Address: 0b01010 (10) |
1 | 0 | 1 | 1 | PHY Address: 0b01011 (11) |
1 | 1 | 0 | 0 | PHY Address: 0b01100 (12) |
1 | 1 | 0 | 1 | PHY Address: 0b01101 (13) |
1 | 1 | 1 | 0 | PHY Address: 0b01110 (14) |
1 | 1 | 1 | 1 | PHY Address: 0b01111 (15) |
AUTO | DESCRIPTION |
---|---|
0 | Autonomous Mode, PHY able to establish link after power-up |
1 | Managed Mode, PHY must be allowed to establish link after power-up based on register write |