can't change the C3088 pixelclock

Hi, I'm using the C3088 cam (OV6620) together with a AVR ATmega16 microcontroller. I can read and write to the cam's registers except
for register 0x11, the Clock Rate Control register. I want to change that register in order to change the pixel clock rate. If I write to the register, and perform a read operation on it immediately after the write operation, I can see that the register has been updated. But if I perform a read operation again after a small delay, the value of the register is reset to the default value again.
Has anyone else experienced this before?
/Peter
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Polytechforum.com is a website by engineers for engineers. It is not affiliated with any of manufacturers or vendors discussed here. All logos and trade names are the property of their respective owners.