So did you get this to work?
Serial Output Transmission
Upon receipt of a User Sample Request (pin 8), the gyro counts and gyro dither position angle are measured with a maximum time delay of 0.5 microsecond. The gyro counts are corrected for dither compensation gain, phase error, non-linearity, and scale factor. In addition, the gyro output is compensated for temperature and temperature rate-of-change.
The software does not allow any interrupt processing during the output. The software outputs the next gated serial data message when a User Sample Request occurs and the Clear-to-Send pin is high. No data is sent if the Clear-to-Send pin is low. The output processing automatically loops through a predefined set of output signals and repeats the sequence when the last defined output signal has been transmitted. The predefined set of output signals are made up of measured gyro signals, gyro status words, and internally computed variables. The serial output transmits a 6-byte (8-bit) serial stream per output frame. A single frame is sent for each interrupt. Each byte is transmitted with the least significant bit first. The 6-byte stream is defined as in Table 8 and Figure 5. For gyro responses requiring more than one response byte, the software sends the remaining bytes in the successive frames. After all bytes have been sent for the current gyro response, the software automatically proceeds to the next defined output signal.
A small piece if code where you poke the gyro and print in HEX what comes back would be a good first step.