
8201, 8202, 8203, 8204 Acceleration Processor Data Sheet, DS-0157-05
Page 110
Exar Confidential
4.2.4
Hash Engine after Compression Engine
Figure 4-8 shows the data flow when the position of the Hash engine is after the
Compression engine and all four engines are enabled. In this configuration, the Hash engine
calculates the MAC value of the RAW data and compares it against the MAC value on the
information bus. The data flow for the remaining engines is the same as described in
“Hash Engine before Compression Engine” encode operation.
Figure 4-7. Decode Operation: Hash Engine after Pad Engine