Push Button and Switch Settings
2-18
ADSP-BF526 EZ-Board Evaluation System Manual
A power-down push button can be connected to the processor’s flag pin
PG12
if position 3 of
SW20
is
ON
.
Turning
SW20
position 2
ON
allows the
SW16
push button to control
LED2
.
A wake signal can be driven to the processor’s dedicated hibernate wake
flag
PG15
by turning
SW20
position 4
ON
. This setting can conflict with the
SPORT0A
, Ethernet, and host interfaces. See
Buttons (SW16–17)” on page 2-15
for more information.
The
PG0
flag pin of the processor can be used as an GPIO or other func-
tions if
SW20
position 1 is turned
OFF
. By default, the
SW20
is set to
ON
,
ON
,
OFF
,
OFF
,
OFF
,
OFF
.
SPORT1 Enable (SW21)
The
SPORT1
enable switch (
SW21
) disconnects the following processor
interfaces from the
P4
connector of the EZ-Board expansion interface II:
UART1RX
,
UART1TX
,
CUD
,
CDG
,
CZM
,
UART1RTS
,
PPID9
, and
LED0
. To enable the
SPORT1
interface at
P4
, turn
SW21
all
ON
. By default,
SW21
is all
OFF
.
Battery Switch (SW22)
The battery switch (
SW22
) connects and disconnects the ADP2291 lithium
ion battery from the EZ-board power. When
SW22
is
ON
, the board can run
and charge from the battery attached to the back of the board. Jumper
P25
should be removed when
SW22
is
OFF
.
SW22
is
OFF
by default.
Содержание ADSP-BF526 EZ-Board
Страница 4: ......
Страница 60: ...Example Programs 1 38 ADSP BF526 EZ Board Evaluation System Manual ...
Страница 96: ...Connectors 2 36 ADSP BF526 EZ Board Evaluation System Manual ...