Texas Instruments DP83620 Evaluation Demo Board DP83620-EVK/NOPB DP83620-EVK/NOPB Ficha De Dados
Códigos do produto
DP83620-EVK/NOPB
7
DP83620 DEMO BOARD USER GUIDE
2.6
LEDs
Various LEDs are provided to assist the user in determining the state of operation of the board.
Table 3 and Figure 6 clarify the relationship between the LEDs and Jumpers.
Table 3 and Figure 6 clarify the relationship between the LEDs and Jumpers.
Table 3. List of LEDs with Jumpers
LED
Associated Jumper Function
D1
Interrupt Indication
D2
MII Power Supply Indication
D13 / D33
J42
Reserved
D10 / D30
J39
Link
D7 /D27
J36
Speed
D4 / D24
J33
Activity
D12 / D32
J41
Reserved
D9 / D29
J38
Reserved
D6 / D26
J35
Phy Control Frame Enable
D3 / D23
J32
Clock Out Enable
Figure 6. LED/Jumper Order
LEDs D3 through D33 can be used to indicate the state of the Phy. When it is desired that the
LED is “ON” when the signal is “LOW”, the associated jumper should be set to the “UP” state.
With this setting a GREEN LED will be illuminated. When it is desired that the LED is “ON” when
the signal is “HIGH”, the associated jumper should be set to the “DN” state. In this case, an
AMBER LED has been incorporated in the circuit. Care should be taken when selecting the
LED polarity of the signals which also function as strap inputs.
For additional information about the functionality of pins connected to the LEDs (with the
exception of D2), refer to the DP83620 datasheet.
LED is “ON” when the signal is “LOW”, the associated jumper should be set to the “UP” state.
With this setting a GREEN LED will be illuminated. When it is desired that the LED is “ON” when
the signal is “HIGH”, the associated jumper should be set to the “DN” state. In this case, an
AMBER LED has been incorporated in the circuit. Care should be taken when selecting the
LED polarity of the signals which also function as strap inputs.
For additional information about the functionality of pins connected to the LEDs (with the
exception of D2), refer to the DP83620 datasheet.