PCI Express Probe Manager - Pattern Recognizers

This screen provides the ability to setup the three 24-byte Pattern Recognizers provided on each link. Because the pattern recognizers look at the first 24 bytes of each packet (or ordered set), they are also referred to as packet recognizers.The Packet Recognizer dialog allows a user to specify the packet recognizer pattern.

The X1, X2 and X4 Packet Recognizer dialog allows the user to enter up to 6 patterns (3 on link A and 3 on link B). In X8 mode, the user can enter up to 3 patterns. In X8 mode, packets are detected if they start on lane 0 or lane 4. The pattern is entered via a sub-dialog that is displayed after the user has clicked one of the six Edit buttons.

The DLLP, TLP and Ordered Set editor screens are designed such that the minimum numbers of fields are specified to form a valid packet. Fields displaying Xs will be masked out. All reserved fields will be masked into the pattern. Every field is validated as the user is entering the hex values. The user may enter any combination of Xs and hex digits into each field. Each field may be edited in binary form by right clicking the mouse key, at which point the contents of the field are displayed in binary format in a separate window. When the user applies the binary values (by clicking the Accept button), the binary value is converted to a hex representation and displayed in the pattern dialog. Field Hex digits that are partially masked will be displayed with a “$” character. You can see each of the three dialog screens by selecting the links below.

.......................Click to see DLLP......Click to see TLP................Click to see Ordered Set