c5416 current drain

Started by Unknown May 2, 2003
I'm working on examining the current drain on a new project, and am
coming up with some odd results.

Its my understanding that IDLE 3 turns off the PLL, so it shouldn't
matter what speed I have reviously set the PLL to, right?

my test powers up the peripherals, but then drops into an infinite
loop with IDLE 3 in the middle of it.

I am seeing about a 130mA current draw difference between setting the
PLL to its defauly /2 state and x8 mode (19.2MHz clock).

Is this normal? According to the c5416 docs I should be seeing a max
of about 100mA of drain when running at 160MHz, but I seem to be able
to easily exceed this.



Brian C. Lane (W7BCL) Programmer
www.shinemicro.com RF, DSP & Microcontroller Design