ADIS16260/265 exit sleep mode

Dear all,

I am trying to use the sleep mode feature of ADIS16265 but the description in the datasheet is rather vague. The device can be placed successfully in sleep mode for some time and would exit without a problem when the set time has elapsed. However, the datasheet does not specify what happens if the user wants to wake-up the device before the sleep time has elapsd. Can this be done and how ?

I did some testing around this problem by bringing CS low and waiting for 2.5ms (as defined in the datasheet) for the device to wake-up, but to no avail. Then I tried bringing CS low, waiting for 2.5ms, sending a read command and then tryting to set the device back to sleep mode, but again with no luck.

After some time I increased the delay to 100ms after bringing CS low and then sent a command to sleep the device again. This was successful, the sensor has become responsive. Looks like recovery from sleep mode when bringing CS low is comparable to the start-up time ?

What I am trying to achieve is: read data from the sensor, enter sleep mode, exit sleep mode, read data, enter sleep mode again. However, I want to control when to exit sleep mode from a uC and to rely on the set timer. I am not sure if this is possible.

Any help would be much appreciated.