Power-Down - Analog Devices ADAU1772 User Manual

UG-177
Before writing to the E2PROM, make sure it is already erased
by clearing it from SigmaStudio. Right click on the E2PROM
and select "Read/Write Window". Then, click the "Clear E2Pro"
button to clear the memory(see Figure 40).
Figure 40. Clear E2PROM
Now, Link-Compile-Download the project (see Figure 27).
Right click on the ADAU1772 and select "Write Latest
Compilation to E2PROM" (see Figure 41).
Figure 41. Write to E2PROM
Once the project has been written to the E2PROM, move the
self-boot switch, S2, to the "ON" position(see Figure 42). This
will make the ADAU1772 boot from the E2PROM when it
powers up.

POWER-DOWN

The Power-Down Header J15, labeled /PD on the silkscreen
of the board, provides access to the power-down pin on the
ADAU1772. Put a jumper on the header to power down all
analog and digital circuits. Before enabling /PD be sure to mute
the outputs to avoid any pops or clicks when the IC is powered
down.
Rev. 0 | Page 12 of 27
Evaluation Board User Guide
Figure 42. Self-Boot Switch On