Boot Mode Select ( Sw1 ); Reset Pushbutton ( Sw2 ); Jumpers; Power ( Jp1 ) - Analog Devices EV-21569-SOM Manual

Boot Mode Select ( SW1 )

The Boot Mode selection switch selects between the different boot modes of the processor. The Boot Mode Switch
table shows the available boot mode settings. By default, the processor boots from SPI2 master boot which uses the
on-board SPI flash memory.
Table 3-6: Boot Mode Switch
Position
0
1
2
3
4
5
6
7

Reset Pushbutton ( SW2 )

The reset pushbutton resets the ADSP-21569 processor. The reset signal also is connected to the expansion connec-
tors via the SYS_HWRST signal.

Jumpers

This section describes functionality of the configuration jumpers. The Switch/Jumper Locations figure shows the
jumper locations.

Power ( JP1 )

The power jumper ( JP1 ) selects the input power source to the EV-21569-SOM board. Pin 1-2 selects power input
from the P2 USB port and Pin 2-3 selects Power from the SoM Interface Connectors. When using the EV-
SOMCRR-EZKIT carrier board or other plug in carrier board, use Jumper setting Pin 2-3.

LEDs

This section describes the on-board LEDs. The LED Locations figure shows the LED locations.
®
EV-21569-SOM Manual
Processor Boot Mode
No Boot
SPI Master Boot (Default)
SPI Slave Boot
UART Boot
Link Port Boot
OSPI Master Boot
Reserved
Reserved
Reset ( LED8 ) is used to indicate when the board is in reset.
Switches
3–9