JAJSD08D October 2015 – November 2022 DP83867CS , DP83867E , DP83867IS
PRODUCTION DATA
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The DP83867 supports connection to an Ethernet MAC through the following interfaces: SGMII and RGMII.
The SGMII Enable (LED_0) strap allows the user to turn the SGMII MAC interface on or off. The SGMII Enable strap corresponds to the SGMII Enable (bit 11) in the PHYCR register (address 0x0010).
The SGMII enable has higher priority than the RGMII enable. Table 8-1 is the configuration table for the MAC interfaces:
SGMII ENABLE (REGISTER 0x0010, BIT 11) | RGMII ENABLE (REGISTER 0x0032, BIT 7) | DEVICE FUNCTIONAL MODE |
---|---|---|
0x1 | 0x1 | SGMII |
0x1 | 0x0 | SGMII |
0x0 | 0x1 | RGMII |
The initial strap values for the SGMII enable and the RGMII disable are also available in the Strap Configuration Status Register 1 (STRAP_STS1).