Most of the CUBIC commands are serial commands, which are listed in Table 26. The Serial Commands control most aspects of the payload operation and set thresholds and DAC voltages.
CUBIC Serial Commands consist of two bits of SAC-B serial
command addressing, six bits of CUBIC serial command addressing, and
eight bits of data. This permits up to 64 CUBIC serial commands. The
CUBIC serial commands are shown in Table 26.
Commands SC12 -- SC16 set
the allowed variations in supply voltages from the nominal values
before the ICP detects a Power Supply Status Out of Range or a Clock
Voltage Status Out of Range condition. (These signals are out of range
if 
or 
, where 
is the range given by the appropriate serial command.
V here is
measured in units of DN as reported by the ADC on the appropriate
housekeeping channel. The 
values uploaded to the satellite
will be actual DN/16 (8 most significant bits).)
Table 26: CUBIC Serial Command Functions
