1What are the main functional purposes of a register 2What i

1)What are the main functional purposes of a register?

2)What is the difference berween SN5474 chip and SN7474 chip? Are they both the same?

Solution

1A: The main functional purposes of a register are register within a microprocessor, which controls or monitors various aspects of the microprocessor\'s function. Depending on the processor architecture, this can include, but is not limited to:

Because special registers are closely tied to some special function or status of the processor, they might not be directly writeable by normal instructions (such as adds, moves, etc.). Instead, some special registers in some processor architectures require special instructions to modify them. For example, the program counter is not directly writeable in many processor architectures. Instead, the programmer uses instructions such as return from subroutine, jump, or branch to modify the program counter.

2A: SN5474 AND SN7474 both are Dual D-type Positive-Edge-Triggered Flip-Flops With Preset And Clear