Push Button and Switch Settings
2-18
ADSP-BF527 EZ-KIT Lite Evaluation System Manual
Programmable Flag Push Buttons (SW14–15)
Two momentary push buttons (
SW14–15
) are provided for general-purpose
user input. The buttons connect to the
PG0
and
PG13
GPIO pins of the
processor. The push buttons are active high and, when pressed, send a
high (
1
) to the processor. The GPIO enable switch (
SW13
) disconnects the
push buttons from the corresponding
PB
signal. Refer to
for more information.
Reset Push Button (SW16)
The reset push button (
SW16
) resets the following ICs.
• processor (
U2
), parallel flash (
U5
), PHY (
U14
) if
SW1
position 4 is
ON
• LCD (
P12
) if
SW5
position 3 is
OFF
and 4 is
ON
• CPLD (
U33
)
The reset push button does not reset the following ICs.
• SDRAM (
U7
), NAND flash (
U4
), SPI flash (
U8
)
• audio codec (
U2
), keypad/touchscreen controller (
U16
)
•
UART1
(
U25
)
The reset push button does not reset the debug agent once it has been
connected to a PC. The USB chip is not reset when the push button is
pressed after the USB cable has been plugged in and communication with
the PC has been initialized correctly. After USB communication has been
initialized, the only way to reset the USB chip is by powering down the
board.
www.BDTIC.com/ADI
Summary of Contents for Lite ADSP-BF527 EZ-KIT
Page 4: ...iv ADSP BF527 EZ KIT Lite Evaluation System Manual www BDTIC com ADI...
Page 86: ...Connectors 2 34 ADSP BF527 EZ KIT Lite Evaluation System Manual www BDTIC com ADI...
Page 111: ...A 12 ADSP BF527 EZ KIT Lite Evaluation System Manual www BDTIC com ADI...
Page 117: ...www BDTIC com ADI...
