F28E120SB: What's the value of WROSC?

Zane Wei

Intellectual 1965 points

Part Number: F28E120SB

Hi Team,

How to understand the colck source is a range? what's the value of WROSC?

10 months ago

0 Matt Kukucka 10 months ago

TI__Mastermind 20380 points

Hello,

WROSC can vary between 20-70MHz but has a typical value between 30-40MHz. The frequency varies device to device. TI does not recommend using WROSC to source the PLL.

Best,

Matt

0 Zane Wei 10 months ago in reply to Matt Kukucka

TI__Intellectual 1965 points

Hi Matt,

Why WROSC is have a very large range? If it not recommend using WROSC, why we put it in F28E12?

Best Regards,

Zane

+1 Matt Kukucka 10 months ago in reply to Zane Wei

TI__Mastermind 20380 points

Hello Zane,

Please refer to the TRM for reasoning. WROSC is intended to only clock the watchdog timers and MCD circuit, serving as a backup oscillator.

Best,
Matt

C2000™︎ microcontrollers

C2000 microcontrollers forum

F28E120SB: What's the value of WROSC?