Mic Gain/Loopback Switch (Sw5); Uart Setup Switch (Sw10) - Analog Devices EZ-Board ADSP-BF518F Manual

Push Button and Switch Settings
to configure the inputs for single-ended mode (
( ). When the
ON
to all .
SW4 OFF
The interface is shared with other on-board components, such as
SPORT1
the eMMC device and push buttons.

MIC Gain/Loopback Switch (SW5)

The microphone gain switch (
connected to the top 3.5 mm jack (
0 dB, or –6 dB by turning position 1, 2, or 3 of
When the corresponding position for the desired gain is
positions must be
to the right headphone output for loopback testing during a POST.
positions 5 and 6 are used to connect line-out to line-in for loopback
SW5
testing in a POST, when no cables are connected to
"Audio Interface" on page 1-16
codec.
Table 2-7. MIC Gain Switch (SW5)
Gain
5 (14 dB)
1 (0 dB)
0.5 (–6 dB)
Unused

UART Setup Switch (SW10)

The UART setup switch (
GPIO pins of the processor. Position 4 is used to place the
the processor in a loopback condition. The jumper connects the
2-10
interface is used on the expansion interface II, set
SPORT1
is set to all
SW4 OFF
SW5
. position 4 is used to connect the
OFF SW5
for more information about the audio
SW5 Switch Settings
, , ,
ON OFF OFF OFF
, , ,
OFF ON OFF OFF
OFF, OFF, ON, OFF (default)
, , ,
OFF OFF OFF
) configures the
SW10
ADSP-BF518F EZ-Board Evaluation System Manual
) or differential mode
OFF
by default.
) sets the gain of the
). The gain can be set to 14 dB,
J5
SW5 ON
OFF
UART0
signal, which is
MIC
(see Table 2-7).
, the remaining
ON
signal
MICIN
and . Refer to
J4 J5
signals from the
port of
UART0
UART0_TX