ch2-new data types

2019-10-24

2-state data types

​ When a 4-state value is converted to a 2-state value, any unknown or high-impedance bits shall be converted to zeros.

The most important 2-state data type is bit which is used most often in testbenches. A variable of type bit can be either 0 or 1 which represents a single bit. A range from MSB to LSB should be provided to make it represent and store multiple bits