Hi Nick,

quoted

Refer to
https://trustedcomputinggroup.org/wp-content/uploads/TPM-Main-Part-3-Commands_v1.2_rev116_01032011.pdf
for details.

  Can you cite the relevant section?

Just pick any section that describes a TPM command.  I randomly used 
Section 10.3 for TPM Unbind.  See the 'Incoming operands and sizes' table.

Regards,
-Denis