Boot Mode Select Switch (Sw1); Reset Push Button (Sw2); Gpio Push Buttons (Sw3-4) - Analog Devices ADSP-BF707 EZ-KIT Lite Manual

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Boot Mode Select Switch (SW1)

The rotary switch (
SW1
Table 2-10 shows the available boot mode settings. By default, the
ADSP-BF707 processor boots from the internal SPI flash memory.
Table 2-10. Boot Mode Select Switch (SW1)
SW1 Position Processor Boot Mode
0 No Boot – Idle
1 SPI master boot (SP12). Default boot mode.
2 SPI slave boot (SPI2)
3 UART boot (UART0)

Reset Push Button (SW2)

The reset push button (
GPIO extender (
U39
nected to the expansion interface via the

GPIO Push Buttons (SW3-4)

The GPIO push buttons (
signals
PA_02/SPI1_MOSI/TRACE0_D05/SMC0_AMS1
SPT0_BD1/SPI0_D3/SMC0_D00/SYS_WAKE0
nected by default. A monostable pulse generator (one-shot,
button 2 shortens the wake pulse, allowing the processor to return to low
power mode sooner.
ADSP-BF707 EZ-KIT Lite Evaluation System Manual
ADSP-BF707 EZ-KIT Lite Hardware Reference
) determines the boot mode of the processor.
) resets the following ICs: processor (
SW2
), and GPIO extender (
U38
SYS_HWRST
and ) are connected to the processor's
SW3 SW4
, respectively. The signals are con-
),
U1
). The reset also is con-
signal.
and
PB_07/EPPI0_D00/
) on push
U49
2-17