Texas Instruments DP83620 Evaluation Demo Board DP83620-EVK/NOPB DP83620-EVK/NOPB Ficha De Dados
Códigos do produto
DP83620-EVK/NOPB
4
DP83620 DEMO BOARD USER GUIDE
2.3
Device Register Access
2.3.1 Access MDIO Through MII
To access the device registers through the MII interface jumpers should be placed between pins
1 and 2 of J3 and J4. Figure 3 shows the default jumper settings for the MDIO/MDC access via
the MII interface.
To access the device registers through the MII interface jumpers should be placed between pins
1 and 2 of J3 and J4. Figure 3 shows the default jumper settings for the MDIO/MDC access via
the MII interface.
Figure 3. Default MDIO/MDC Connection
2.3.2 Access MDIO Through USB
To access the device registers through the USB interface jumpers should be placed between pins
2 and 3 of J3 and J4.
To access the device registers through the USB interface jumpers should be placed between pins
2 and 3 of J3 and J4.
2.3.3 Access MDIO Through Parallel Port
To access the device registers through the parallel port of the PC, the jumpers on J3 and J4 must
be removed. Figure 4 shows the connection between the parallel port and the device signals:
MDIO (J4, 2), MDC (J3, 2), and GND (J22, 1).
To access the device registers through the parallel port of the PC, the jumpers on J3 and J4 must
be removed. Figure 4 shows the connection between the parallel port and the device signals:
MDIO (J4, 2), MDC (J3, 2), and GND (J22, 1).
Figure 4. Direct Connect Cable with Line Resistors