Using The Software To Control The Functional Blocks Of Ad9523-1; Pll 1 Controls - Analog Devices UG-182 User Manual

UG-182
The Register Map Values window, accessed by selecting
Register Map Window from the View menu, allows you to read
registers (see Figure 10).
Figure 10. Register Map Window
Help Menu
Selecting Help from the Help menu opens the About AD9523-1
window, which contains information such as revision number,
region information, and contact information.
USING THE SOFTWARE TO CONTROL THE
FUNCTIONAL BLOCKS OF AD9523-1
REGISTER W/R
The REGISTER W/R (write/read) section in Figure 6 has three
buttons and three check boxes.
The WRITE button transfers the values stored in the evaluation
software to the evaluation board. It blinks red when register
values have changed.
The READ button transfers the values stored in the evaluation
board to the evaluation software.
The UPDATE button issues an I/O update command by writing
to the I/O update register.
Selecting the All check box transfers all of the registers when
the WRITE button is clicked. When this box is not selected,
only the registers whose value has changed are written.
Selecting the Auto check box adjacent to the WRITE button
forces the evaluation software to write the register changes to
the evaluation board automatically when they occur.
Selecting the Auto check box adjacent to the UPDATE box
forces the evaluation software to issue an I/O update command
whenever registers are written to the AD9523-1.
SYNC, PD (Power Down), and RESET
The SYNC, PD, and RESET buttons allow you to control the
SYNC , PD , and RESET pins on the AD9523-1.
Each button has three options: Strobe, Latch, and Release.
Strobe activates the pin and then releases it. Latch holds the pin
active until the Release command is issued.

PLL 1 CONTROLS

The PLL 1 box in the main window (see Figure 6) allows you to
configure the PLL1 parameters. Clicking the PLL 1 box in the
main window, shown in Figure 11, opens a window to allow
configuration of PLL1 (see Figure 12 ).
Clicking each individual box in the PLL 1 Controls window
opens a new window to allow configuration of that block (see
Figure 13 for an example for the REF A Divider window).
Rev. 0 | Page 8 of 16
Evaluation Board User Guide
Figure 11. PLL1 Box (in Main Window)
Figure 12. PLL1 Controls Window