ZC702 Si570 Programming
For this example, Si570_0 will be reprogrammed from 156.25 to 200
MHz
– This requires use of the SiLabs Programmable Oscillator Calculator
To use the SiLabs calculator, the correct fXTAL value for each Si570
must be determined, using this equation:
For this equation,
– Fout = 156.25, the preprogrammed frequency of the Si570s on the ZC702
We need to determine:
– RFREQ
– HSDIV
– N1
These can be found by reading back the registers on the Si570
Note:
Presentation applies to the ZC702
Содержание ZC702 Si570
Страница 1: ...November 2014 ZC702 Si570 Programming XTP181 ...
Страница 5: ...Xilinx ZC702 Board ...
Страница 25: ...ZC702 Si570 Programming Divide by 2 28 This is the value for RFREQ Note Presentation applies to the ZC702 ...
Страница 29: ...ZC702 Si570 Programming Select Options Advanced ...
Страница 31: ...ZC702 Si570 Programming Enter 156 25 under Definition and click the Apply Definition button ...
Страница 32: ...ZC702 Si570 Programming Set the new frequency to 200 MHz and click the Create Example button ...
Страница 35: ...ZC702 Si570 Programming Si570 has been successfully updated Note Presentation applies to the ZC702 ...
Страница 36: ...ZC702 Si570 Programming Measured frequency will be 20 00 MHz Note Presentation applies to the ZC702 ...
Страница 37: ...References ...
Страница 38: ...References Silicon Labs Si570 Data Sheet http www silabs com Support 20Documents TechnicalDocs si570 pdf ...
Страница 39: ...Documentation ...
