Hi there:
The file SNLA239A describes how to configure DP838xx for ethernet compliance testing. The note primarily uses DP83867 as an example, but any DP838xx can use these procedures for compliance
testing. In appendix B, the note describes ethernet compliance testing MDIO register writes for DP83867.
For 100 Base Standard MDI (Test Mode 5):
Reg 0x001F = 0x8000 //reset PHY
Reg 0x0000 = 0x2100 //programs DUT to 100Base-TX Mode
Reg 0x0010 = 0x5008 //programs DUT to Forced MDI Mode
Reg 0x0009 = 0xBB00 //Test Mode 5
Reg 0x0025 = 0x0480 //output test mode to all channels
According to the Table 6-7 Register Map of DP83848I datasheet, the register 0x0009 and 0x001F is RESERVED, 0x0010=PHY Status Register, and there is no register 0x0025. The register is not same with DP83867.
Is there test mode 5 for DP83848I? Does the reserved register of DP83848I can write? How should I configure DP83848I for ethernet compliance testing correctly and completely?
