« previous next »
Pages: [1]   Go Down

Author Topic: Kinetis K20 80 pin Clock Question  (Read 2249 times)

0 Members and 1 Guest are viewing this topic.

Offline mtechmattTopic starter

  • Regular Contributor
  • *
  • Posts: 61
Kinetis K20 80 pin Clock Question
« on: November 13, 2013, 06:53:25 pm »
Hi everyone...

Tech question...

We want to run  Freescale Kinetis K22 at 120MHZ, which it can do, but the the only XTAL pins on the device are the XTAL32 (for RTC)... Can the FLL/PLL really clock up from this to 120MHZ or am I seeing something wrong?

datasheets:
http://cache.freescale.com/files/32bit/doc/ref_manual/K22P80M120SF5RM.pdf?fpsp=1&WT_TYPE=Reference%20Manuals&WT_VENDOR=FREESCALE&WT_FILE_FORMAT=pdf&WT_ASSET=Documentation

Any help much appreciated!

Matt
Logged
 

Offline dciliske

  • Newbie
  • Posts: 3
Re: Kinetis K20 80 pin Clock Question
« Reply #1 on: November 14, 2013, 10:53:09 pm »
The primary oscillator input is XTAL0 (pin 41) and EXTAL0 (pin 40). You'll find it listed in the pinout table on page 229 of the linked manual.
Logged
 
Pages: [1]   Go Up
« previous next »

Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf

 


EEVblog Main Site EEVblog on Youtube EEVblog on Twitter EEVblog on Facebook EEVblog on Odysee