Push Button Enable Switch (Sw9); Boot Mode And Clock Ratio Select Switch (Sw10) - Analog Devices ADSP-21262 EZ-KIT Lite Manual

Push Button Enable Switch (SW9)

The push button enable switch (
the corresponding processor pins. This allows the signals to be used for
another purpose.
default, all of the position of the
tons to function as designed.
Table 2-4. Push Button Enable Switch (SW9) Connections
Switch Position
1
2
3
4
Position 6 of
SW9
to the logical
OR
latch-enable pin of the LED latch (
latch transparent. In this position, the value of the LEDs is directly con-
nected to
AD7–0
writing to a memory location. The lower 8 bits of the data, written to the
address
0x1400 0000
, allowing the LEDs to be written by writing to a memory address. For
ON
more information refer to

Boot Mode and Clock Ratio Select Switch (SW10)

The switch sets the boot mode and clock multiplier ration.
SW10
shows how to set up the boot mode using positions 1 and 2. By default,
the EZ-KIT Lite boots in SPI master mode and parallel port mode, and
the processor boots from flash memory.
ADSP-21262 EZ-KIT Lite Evaluation System Manual
ADSP-21262 EZ-KIT Lite Hardware Reference
SW9
Table 2-4 shows the signal and
SW9
Push Button Reference Designator
SW1
SW2
SW3
SW4
connects or disconnects the latch-enable pin of the LED
of the and
WE LED_CS
. When position 6 is
, set the values of the LEDs. By default, position 6 is
"LEDs and Push Buttons" on page
) disconnects the push buttons from
SW9
switch are , allowing the push but-
ON
Processor Pin
FLAG1
FLAG2
DAI_P19
DAI_P20
signals. When position is
) is always pulled high, making the
U24
, the values of the LEDs are set by
ON
connections. By
, the
OFF
2-13.
Table 2-5
2-11