Greetings,
I am trying to capture the MACs in the frames. I need to know the time of
arrival of the MACs.
To get to the point, I have wired three signals from the Intersil Prism chip
set to a FPGA and logic analyzer.
The signals are RXD, RXCLK and MD_RDY and I picked them off the HFA3861B
chip. With the analyzer I can
trigger storage on the rising edge of MD_RDY and store RXD. I can see
SERVICE, SIGNAL and LENGTH
data along with the CRC on the analyzer. The data I see in the PLCP header
makes sense and agrees with the way the system is set up.
Its when  we get into the PSDU part of the frame things start to not adhere
to the 802.11 spec section 7 frame format definition.

I am trying to locate the MAC of the transmitter in the frame but when I
look at the captured data in the FPGA there is no data that
matches the MAC. I have looked at the bits reversed and tried matching on a
byte by byte. The logic analyzer data agrees with the
data in the FPGA so that validates my FPGA design.

The vendor of the card  sometimes uses a protocol of 01 which is  reserved
and various subtypes are also used that are reserved.
I haven't seen a type of 11 (reserved) in the frame control.

So my questions are these:
   1. Is there some sort of bit interleaving of the mac address being done?
   2. Is there some sort of mapping of the mac to some other value being
done?
   3. If I restrict my data capture to association request and
authentication will the MAC show up in the frame?

The MAC I speak about is the MAC that is printed on the label on the
equipment and matches the one displayed in the monitor
program via the serial interface,

Thanks for any info.
Regards
Jer