Boot Mode Select Switch (Sw4); Push Button Enable Switch (Sw5); Fuel Gauge Enable Switch (Sw6) - Analog Devices ADSP-BF592 EZ-KIT Lite Manual

Push Buttons and Switches

Boot Mode Select Switch (SW4)

The rotary boot mode select switch (
processor. Table 2-4
the ADSP-BF592 processor boots from SPI flash memory.
Table 2-4. Boot Mode Select Switch (SW4)
SW4 Position
0
1
2
3
4
5
6
7

Push Button Enable Switch (SW5)

The push button enable switch (
button circuits from the general-purpose I/O (GPIO) pins of the proces-
sor and makes available the I/O signals to the expansion interface.

Fuel Gauge Enable Switch (SW6)

The fuel gauge enable switch (
and battery low (
Table 2-5). The switch also disconnects TWI signals between the proces-
sor and fuel gauge. The TWI signals on the fuel gauge operate only when
a clock on the
2-8
shows the available boot mode settings. By default,
Processor Boot Mode
Idle—no boot
Reserved
SPI1 master boot from Flash, using
SPI1 slave boot from external master
SPI0 master boot from flash memory using SPI0SSEL2 (default)
Boot from PPI port
Boot from UART host device
Boot from Internal L1 ROM
SW5
SW6
) signals from their respective LEDs (
BAT_LOW
signal is running at up to 100 kHz. If the TWI bus
SCL
ADSP-BF592 EZ-KIT Lite Evaluation System Manual
) determines the boot mode of the
SW4
SPI1SSEL5
) disconnects all of the associated push
) disconnects the battery good ( )
BAT_GD
) (see
LED7–8