Push Button and Switch Settings
2-10
ADSP-BF526 EZ-Board Evaluation System Manual
Boot Mode Select Switch (SW1)
The rotary switch (
SW1
) determines the boot mode of the processor.
shows the available boot mode settings. By default, the
ADSP-BF526 processor boots from the on-board parallel flash memory.
The selected position of
SW1
is marked by the notch down the
entire rotating portion of the switch, not the small arrow.
Table 2-5. Boot Mode Select Switch (SW1)
SW1 Position
Processor Boot Mode
0
Reserved
1
Boot from 8-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
8
Boot from UART1 host
9
Reserved
A
Boot from SDRAM
B
Boot from 8-bit NAND flash PORTF
C
Boot from 8-bit NAND flash PORTH
D
Reserved
E
Boot from 16-bit host DMA
F
Boot from 8-bit host DMA