34.3.3.5 LCDS
- Load Data from Control and Status
Register Space
The LCDS
instruction is used to load data from the UPDI and ASI
CS-space. LCDS
is based on direct addressing, where the address is part
of the instruction opcode. The total address space for LCDS
is 16 bytes
and can only access the internal UPDI register space. This instruction only supports
byte access and the data size is not configurable.
The figure above shows a typical example of LCDS
data
transmission. A data byte from the LCDS
space is transmitted from the
UPDI after the Guard Time is completed.