The Data Bypass buffer represents an attempt to compromise the Von Neumann architecture of the ARM7 core with the benefits of the Harvard architecture. With the ARM7, a signal specifies whether a specific fetch is for data or instruction. The MAM uses this signal to determine when a data read occurs. For each data read that’s not already fetched, the MAM stores 128-bits in the data bypass latch. So, in the case of a later data read, this request is satisfied from the Data Bypass buffer which will contain the data requested if it is sequential to the last data fetched. This is all accomplished without emptying the instruction buffer, which is still resident in the Prefetch buffer, so instructions continue immediately following the data load from the data bypass buffer.