Effect: This command specifies the size in bytes the read buffer must reach before the mega168’s status byte alerts the mega644 that the buffer is ready to be read. The value transmitted is a five-bit number representing
This value can be saved to byte 16 of EEPROM using command 240 (Section 3.d.02) so that it will persist after a hardware reset. When storing in EEPROM, you must ensure the value is within the allowed range of 1 – 32.
Values sent: read-ready size – 1 (5 bits)
command byte = 227
data byte = read-ready size – 1