Analog Devices ADSP-BF518F EZ-Board, Руководство пользователя

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Push Button and Switch Settings
2-8 ADSP-BF518F EZ-Board Evaluation System Manual
Boot Mode Select Switch (SW1)
The boot mode select switch (
SW1
) determines the boot mode of the pro-
cessor. Table 2-4 shows the available boot mode settings. By default, the
ADSP-BF518F processor boots from the on-board parallel flash memory.
L
The selected position of
SW1
is marked by the notch down the
entire rotating portion of the switch, not the small arrow.
PB Enable Switch (SW2)
The PB enable switch (
SW2
) disconnects the associated push buttons from
the GPIO pins of the processor and allows the signals to be used for other
purposes (see
Table 2-5 ).
Table 2-4. Boot Mode Select Switch (SW1)
SW1 Position Processor Boot Mode
0 Reserved
1 Boot from 8- or 16-bit external flash memory (default)
2 Boot from 16-bit asynchronous FIFO
3 Boot from serial SPI memory
4 Boot from SPI host device
5 Boot from serial TWI memory
6 Boot from TWI host
7 Boot from
UART0
host