The figure 1 depicts the internal structure of the MAC circuit. This synchronous circuit is a
Multiplier And Accumulator.
The input and output ports of the circuit are described hereafter:
? The A and B inputs are 8-bit wide buses carrying unsigned integer values.
? The S output is an 8-bit wide bus carrying unsigned integer values.
? The M input is an single bit input.
? Though the rst and clk lines/inputs exist (as the MAC is a synchronous circuit), they are not shown in the figure to alleviate its complexity.
During normal operation (with the M input set to 0), the circuit calculates the cumulative value Pt At ∗ Bt (where At and Bt denote the values of A and B at clock cycle t. When the M
is set to ?1?, the cumulative value (and intermediate operande values are all reset to 0.
The goal in this problem is to write a behavioral model of this MAC circuit at the RTL level
(hence, a synthetisable model) that only uses a single process in its internal architecture.
http://imagizer.imageshack.us/v2/800x600q90/23/ta6t.jpg
anyone can help me please to solve this 