Rotary Encoder With Momentary Switch (Sw14); Sport0 Enbl Switch (Sw15); Encoder Enable Switch (Sw19) - Analog Devices EZ-Board ADSP-BF518F Manual

Push Button and Switch Settings

Rotary Encoder with Momentary Switch (SW14)

The rotary encoder (
counter-clockwise for a down count. The encoder also features a momen-
tary switch, activated by pushing the switch towards the processor, which
resets the counter to zero. The rotary encoder is a two-bit quadrature (gray
code) encoder. Refer to the Rotary Counter section of the ADSP-BF51x
Blackfin Processor Hardware Reference for more information.
The rotary encoder is disconnected from the processor by setting
positions 1, 2, and 3 to
page 2-12 for more information.

SPORT0 ENBL Switch (SW15)

The enable switch (
SPORT0
cessor to the audio codec, SSM2603 (
to disconnect the TWI bus from the codec. When the
used on the expansion interface II, set
to all .
ON

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
2-12
) can be turned clockwise for an up count or
SW14
. See "Encoder Enable Switch (SW19)" on
OFF
) connects the
SW15
U1
SW15
) disconnects the rotary encoder signals
SW19
SW19
From
Encoder (
SW14
Encoder (
SW14
ADSP-BF518F EZ-Board Evaluation System Manual
interface of the pro-
SPORT0
). positions 7 and 8 are used
SW15
SPORT0
all . By default,
OFF
position 4 is used to enable or
determines whether a card is
PF14
is , its associated GPIO
SW19 OFF
Table
To
) Processor (
) Processor (
SW19
interface is
is set
SW15
2-8).
, )
U1 PH4
, )
U1 PH5