It came from the big box of mixed crystals, so I can't be too sure. I did check that it puts out the correct frequency.


With the clock on, the current is 2.64mA. I tried disconnecting Vcc from the oscillator - the current drops to 0.98mA. The power supply to the oscillator is separate, so it doesn't affect the measurements.


I tested with this code:

#include <89LP214.h>
#include <absacc.h>
#include <stdio.h>

void main(void)
{
P1M0 = 0x00;	//P1 i output mode
P1M1 = 0xff;	//P1 i output mode

P1 = 0xff;
P1_4 = 0;

while(1)
	{
	PCON = 1;	//Start idle mode (go to sleep)
	P1_6 = 0;
	}
}
 

P1.4 goes low, P1.6 stays high.

So the solution is simple - run the LP214 with no clock at all! ;)

Mikkel