24.2.4.3 Control Data Client (CDS)
The CDS bit is the first bit after the Start bit, and “0
” is always the
state transmitted by the host. This bit is used by clients for ID confirmation and
replies to host control data. This bit can be "1
" or
"0
" when transmitted by the client. The eventual combination from
each cycle’s CDS bits creates an entire control communication packet. Please see Register Communication for more
information.