Associative memory HASP consists of hetero-associative memory (S layer) and mutually inhibitory network (A layer). We have shown that by considering the static distribution probability of synapses, the performance of HASP overwhelms that of hetero-associative memory. But we neglected the dynamics of A layer. In this study, we derive a set of macroscopic state equations of A layer. The theoretical analysis is supported by the results of computer simulations.