Encoder Enable Switch (Sw19); Emmc Enable Switch (Sw20-21); Adc Loopback Switches (Sw22-23) - Analog Devices ADSP-BF518F EZ-Board Manual

Encoder Enable Switch (SW19)

The encoder enable switch (
from the GPIO pins of the processor.
disable the SD card detect signals: pin
inserted into the SD connector. When
signals can be used on the expansion interface II (see
Table 2-8. Encoder Enable Switch (SW19)
SW19 Position (Default)
1 ( )
OFF
2 ( )
OFF
3 ( )
OFF
4 ( )
OFF
eMMC Enable Switch (SW20–21)
The eMMC enable switches (
the on-board eMMC memory device. The eMMC and SD interfaces share
the same signals; therefore, no card should be inserted into the SD con-
nector when the eMMC device is used. The default for the switches is all
so that the SD connector can be used.
OFF
ADC Loopback Switches (SW22–23)
The ADC loopback switches (
The switches are used to send an analog signal generated from the codec to
the ADC circuit for evaluation.
ADSP-BF518F EZ-Board Evaluation System Manual
ADSP-BF518F EZ-Board Hardware Reference
) disconnects the rotary encoder signals
SW19
SW19
From
Encoder (
SW14
Encoder (
SW14
Encoder (
SW14
SD connector (
and
SW20
and
SW22
position 4 is used to enable or
determines whether a card is
PF14
is , its associated GPIO
SW19 OFF
Table
To
) Processor (
) Processor (
) Processor (
) Processor (
J13
) connect the RSI signals to
SW21
) are used for testing only.
SW23
2-8).
, )
U1 PH4
, )
U1 PH5
, )
U1 PH6
, )
U1 PF13
2-13