Logic Analyser Usage Advice

I have an old HP 1630G logic analyser. I am trying to use it to debug a problem with an 82C206 peripheral controller (or rather I think damage between the CPU and the peripheral controller). I am not very experienced with logic analysers and I wonder if I am using it correctly. What I am trying to do is see which internal registers are being read/written and the values. To do this there are two signals (XIOR and XIOW) that trigger the read/write on their rising edge. So I have connected the XIOR and XIOW signals to the J and K clock inputs and set the LA to clock on the rising edge. I have then told the LA to trigger on a particular address range (in the State Trace screen if anyone is familiar with this LA). When I run the analyser it complains of a slow clock. This makes sense, because I am using the read/write signals to drive the clock inputs so that I only capture actual reads and writes to the peripheral

However, I don't seem to be getting sensible values in the trace and I am wondering if the LA is really not capturing anything because of the slow clock? I don't think it makes sense to clock the LA on the actual clock signal because I won't be able to capture the address and data values on the rising edge of the read/write signals and I would end up with traces full of useless data. Am I doing it right, or is there a technique that I am missing here? Thanks Rob