Uart Interface - Analog Devices EZ-Board ADSP-BF518F Manual

UART Interface

input frequencies in excess of 30 MHz. The inputs to the ADC are config-
urable as either six differential or twelve single-ended inputs. The inputs
are accessed via a .1" spaced IDC connector.
The ADC connects to the ADSP-BF518F processor via the processor's
serial port 1.
SPORT1
, which enables
OFF
multi-function pins. In the latter case, the port's signals can be used for
the RSI or as push buttons. See
page 2-9 for more information.
The ADC range is controlled by switch
between the 2.5V and 5V input ranges. The max voltage range for a signal
connected to the ADC inputs is 0–5V. Any voltage outside of the range
can damage the EZ-Board.
Switch (SW4)" on page 2-9.
For testing, switches
to the input channels of the ADC. Do not connect the ADC input con-
nectors and have switches
information, see "ADC Loopback Switches (SW22–23)" on page 2-13.
UART Interface
The ADSP-BF518F processor has two built-in universal asynchronous
receiver transmitters (UARTs).
other peripherals on the EZ-Board.
has full RS-232 functionality via the Analog Devices 3.3V
UART0
ADM3202 line driver and receiver (
switch position 4 to
SW10
should be installed only when running the POST program.
1-18
is disconnected from the ADC by turning switch
for the expansion interface II or for the
SPORT1
"SPORT1 Enable Switch (SW4)" on
For more information, see "SPORT1 Enable
connect an audio output signal of the codec
SW22–23
SW22–23 ON
UART0—1
U21
. This setting enables UART loopback and
ON
ADSP-BF518F EZ-Board Evaluation System Manual
position 5. The switch selects
SW4
at the same time. For more
share the processor's pins with
). When using
UART0
SW4
, do not set