4
REVISION C 09/29/14
82P33731/33831 EVALUATION BOARD
On-Board Crystal Installation
Although three crystal frequencies (24.88320MHz, 25.00000MHz and 25.78125MHz) are supported for APLL3, only two crystals
are installed on the board.
Table 3
lists the crystals with different frequencies installed on two versions of 82P33x31 evaluation
boards.
Table 3: Crystals installed on Two Versions of 82P33x31 Boards
Board Default Frequency Output
Upon power-up, the following default frequencies will be available:
•
OUT1 = 25MHz
•
OUT2 = 125MHz
•
OUT3 = 156.25MHz
•
FRSYNC = 8kHz
•
MFRSYNC = 2kHz
Working with TimingCommand for Configuration
Use the following steps to start the configuration of the Timing Commander GUI and program the board using I
2
C:
1. Connect the board as shown in
Figure 2
. Press hardware reset button to reset the device. Reset is not necessary if the
board is powered up for the first time).
2. Start Timing Commander® software. You will see options of “New Setting File” and “Open Setting file”. For a new
configuration, select “New Setting File”.
EVB
12.8MHz TCXO
X1
X2
82EBP33831-1
E6241LF
25.000MHz
24.576MHz
82EBP33831-2
E6241LF
24.8832MHz
25.78125MHz
