A method includes executing microcode in a processing unit of a processor to implement a machine instruction, wherein the microcode is to manipulate the processing unit to access a peripheral device on a public communication bus at a private address not visible to other devices on the public communication bus and not specified in the machine instruction. The combination of amino acids can be tailored to provide improved solubility, absorption, andor bioavailability of the mineral. Specifically, the clock period of the system clock signal is equal to a clock period reference number multiplied by a base delay. Also, a carbon supported catalyst having very fine catalyst particles uniformly dispersed may be prepared even at a high loading may be prepared.