These two blocks constitute buffer management for the data buffers in Host mode and in Device mode. This block manages endpoint buffers and their properties, called pipes, which are defined by control, bulk, interrupt, and ISO data transfers. Data buffers in Device mode (endpoints) and in Host mode are supported by the SECDED block, which automatically takes care of single-bit error correction and dual-bit error detection. This SECDED block maintains the counters for the number of single-bit corrections made and the number of detections of dual-bit errors. The SECDED block is provided with the interrupt generation logic. If enabled, this block generates the corresponding interrupts to the processor.