Figure 3-1. DP83TD510E USB Power Supply
3.2 Master and Slave Mode Selection – DP83TD510E
3.2.1 DP83TD510E in RMII Master Mode, DP83822I in RMII Slave Mode (default)
• Populate R149
• Remove R143, R136, R91
• Set the correct hardware straps or perform the correct software write.
Hardware Strapping
• Populate R84, R103 with 2.49k (1%)
• Place shunt on LED_0, J20 in "Mode 0" position
Software Programming
• DP83TD510E
– Write register 0x0017[5]=1
– Write register 0x0017[7]=0
• DP83822I
– Write register 0x0017[5]=1
– Write register 0x0017[7]=1
3.2.2 DP83TD510E in Slave Mode, DP83822I in Master Mode
• Populate R136, 138, R143, R25
• Remove R135, R137, R149, R91
• Set the correct hardware straps or perform the correct software write.
Hardware Strapping
• Populate R84, R103 with 5.76k (1%), R108 with 2.49k (1%)
• Place shunt on J20 in "Mode 1" position
Software Programming
• DP83822I
– Write register 0x0017[5]=1
– Write register 0x0017[7]=0
• DP83TD510E
– Write register 0x0017[5]=1
– Write register 0x0017[7]=1
Board Setup Details
SNLU271A – MARCH 2020 – REVISED AUGUST 2020
DP83TD510E-EVM User’s Guide
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