Analog Devices ADSP-BF518F EZ-Board, Manual

Page: 70 / 111

LEDs
2-22 ADSP-BF518F EZ-Board Evaluation System Manual
GPIO LEDs (LED1–3)
Three LEDs connect to three general-purpose I/O pins of the processor
(see
Table 2-12 ). The LEDs are active high and lit by writing a ‘
1
’ to the
correct programmable flag signal.
Ethernet LEDs (LED4–8, LED10–12)
The Ethernet LEDs
LED4—8
and
LED10—12
are used to report the status of
port 1 and port 2 of the KSZ8893M switch. The status displayed by the
LEDs is controlled by jumpers
JP11
and
JP12
. The LEDs can be used to
report the status of the link, activity on the line, duplex mode speed, and
collisions. For more information on the LEDs, refer to the KSZ8893M
data sheet provided by the product manufacturer.
For more information,
see “LED Select Jumpers (JP11–12)” on page 2-17.
Reset LED (LED9)
When
LED9
is lit, it indicates that the master reset of all major ICs is
active. The reset LED is controlled by the Analog Devices ADM708
supervisory reset circuit. You can assert the reset push button (
SW11
) to
assert the master reset and activate
LED9
. For more information, see “Reset
Push Button (SW11)” on page 2-12.
Table 2-12. GPIO LEDs
LED Reference Designator Processor Programmable Flag Pin
LED1 PH3
LED2 PH5
LED3 PH6