MT92220

   In this document, the following conventions of MT92220 are used:
• The transmission direction and the abbreviation TX always refer to the direction in which voice is converted into IP packets or AAL2 cells.
• The reception direction and the abbreviation RX refer to the direction in which packets or cells are converted into PCM bytes or HDLC packets.
• All numbers in this document are decimal unless otherwise specified.
• Hexadecimal number can be identified by the 'h' suffix (ex: A5h).
• Binary numbers are either in double quotes for multiple bits or in single quotes for individual bits (ex: "1001", '0').
• The term "byte" means 8 bits.
• The term "word" means 16 bits.
• The term "dword" means 32 bits.
• The word "high" means a binary value of '1'.
• The word "low" means a binary value of '0'.
• The verb "to clear" means to reset one or multiple bits to '0'
• The verb "to set" means to put one or multiple bits to '1'.
• All addresses are specified in hexadecimal and point to bytes. Addresses are converted from bytes to words to double words using the little endian format, unless otherwise specified.