Composite Types 1

VHDL Data Types
Composite Types 1

Array
- Used to collect one or more elements of a similar type in a single construct
- Elements can be any VHDL data type
- Sample one-dimensional array (vector)
TYPE data_bus IS ARRAY (0 TO 31) OF BIT;
0 ...element numbers... 31

0 ...array values... 1
VARIABLE X: data_bus; VARIABLE Y: BIT; Y := X(12); -- Y gets value of 13th element from the left