Analog Devices ADSP-21364 EZ-KIT Lite Manual page 33

DAI pins must be configured as interrupts. It is necessary to set up an
interrupt routine to determine each pin's state.
Table 1-2 shows how each push button connects to the processor. Refer to
the related example program shipped with the EZ-KIT Lite for more
information.
Table 1-2. Push Button Connections
Push Button Reference Designator
SW1
SW2
SW3
SW4
The LEDs connect to the parallel port pins,
port of the processor can be set up as a memory bus or as general-purpose
pins. The latch allows the LEDs to be written to in both cases. Infor-
FLAG
mation about setting up the latch can be found in
Switch (SW9)" on page
When the LEDs are accessed as
the data through to pins
necessary to set up the parallel port to be
port as pins, set the
FLAG
Table 1-3 summarizes the LED and
Table 1-3. LED Connections
LED Reference Designator Processor Pin
LED1
LED2
LED3
ADSP-21364 EZ-KIT Lite Evaluation System Manual
Using the ADSP-21364 EZ-KIT Lite
Processor Pin
FLAG1
FLAG2
DAI_P19
DAI_P20
2-11.
pins, the latch must be set up to pass
FLAG
of the processor. In this mode, it is also
AD7–0
bit in the
PPFLGS
FLAG
Mapped as FLAG
AD0 FLAG8
AD1 FLAG9
AD2 FLAG10
, via a latch. The parallel
AD7–0
"Push Button Enable
pins. To set up the parallel
FLAG
register.
SYSCTL
connections.
1-15