CYNCP80192-BGC Cypress Semiconductor Corp, CYNCP80192-BGC Datasheet - Page 17

• Manufacturer Part Number: CYNCP80192-BGC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CYNCP80192-BGC

• Lead Free Status / Rohs Status: Not Compliant

7.3.5
Operations
Only Result Register 0 carries meaningful data, as is shown in
Table 7-14 below.
Table 7-14. Write/Move/Swap/Learn Results Register 0
Done. This field indicates that the command has been
processed. When the done bit is set, the next command can
be written in the descriptor. The done bit is cleared when the
Result Register 0 is Read by the network processor.
Result Register 1 is not used for Write/Move/Swap/Learn
commands.
Table 7-15. Result Register 0 for Search Operation
Processor ID[4:0]. The processor ID from the command
descriptor is identified here.
Context ID[4:0]. The context ID from the command descriptor
is identified here.
Hit. The hit flag indicates whether the search was successful.
Table 7-16. Result Register 1 (Search Result Bit in Data Field = 0)
Table 7-17. Result Register 1 (Search Result Bit in Data Field = 1)
Document #: 38-02043 Rev. *C
Bit Positions
Bit Positions
63–56
55–48
47–40
39–32
31–24
23–16
15–8
63–56
55–48
47–40
39–32
31–24
23–16
7–0
15–8
7–0
Result 1
Result Register 0 and 1 for Write/Move/Swap/Learn
ADR
Result 1
ADR
Done
Done
7
7
Hit
Reserved
Reserved
Reserved
Hit
6
6
Associative Data SSRAM Connected to Coprocessor Bus
Reserved
Reserved
5
5
SE Data/Mask Array access Results
7.3.6
For the search operation where an SSRAM is connected to the
NSE (Figure 7), the Result Register 0 carries search status,
processor ID and context ID and is shown in Table 7-15. The
associative data is returned in Result Register 1 if the search
succeeded, as shown in Table 7-16. In addition, if the search
result in data field bit in the CFG register is set, then bit[63] of
Result Register 1 indicates a search success (bit[63] = 1) or
search failure (bit[63] = 0). In this case bits 62–0 contain the
63-bit associative data from the SSRAM, as is shown in
Table 7-17.
Done. This field indicates that the command has been
processed. The done bit is cleared when the Result Register
0 is Read by the network processor. A new command can be
initiated by the network processor through this descriptor after
the done bit has cleared.
4
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
4
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Associative Data[63:0]
Associative Data[62:0]
63–0
Result Register 0 and 1 for Search Operation (Case 1)
63–0
3
3
Processor ID [4:0]
Context ID [4:0]
Reserved
Reserved
2
2
CYNCP80192
1
1
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