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M7020R-050ZA1T Datasheet(PDF) 5 Page - STMicroelectronics

Part # M7020R-050ZA1T
Description  32K x 68-bit Entry NETWORK SEARCH ENGINE
Download  150 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M7020R-050ZA1T Datasheet(HTML) 5 Page - STMicroelectronics

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M7020R
136-bit Search on Tables Configured as x136 Using Up to Eight M7020R Devices . . . . . . . . 66
Hit/Miss Assumption (Table 35.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Hardware Diagram for a Table with Eight Devices (Figure 44.) . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
x136 Table with Eight Devices (Figure 45.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Timing Diagrams for x136 Using Up to Eight M7020R Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
136-bit SEARCH for Device Number 0 (Figure 46.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
136-bit SEARCH for Device Number 1 (Figure 47.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
136-bit SEARCH for Device Number 7 (Last Device) (Figure 48.) . . . . . . . . . . . . . . . . . . . . . . 71
Latency of SEARCH from Instruction to SRAM Access Cycle, 136-bit, Up to 8 Devices . . . . . . . . 72
Shift of SSF and SSV from SADR (Table 37.). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
136-bit Search on Tables Configured as x136 Using Up to 31 M7020R Devices. . . . . . . . . . . 72
Hit/Miss Assumption (Table 38.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Hardware Diagram for a Table with 31 Devices (Figure 49.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Hardware Diagram for a Block of Up to Eight Devices (Figure 50.) . . . . . . . . . . . . . . . . . . . . . . . . 75
x136 Table with 31 Devices (Figure 51.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
Timing Diagrams for x136 Using Up to 31 M7020R Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Each Device in Block Number 0 (Miss on Each Device) (Figure 52.) . . . . . . . . . . . . . . . . . . . . 77
Each Device Above the Winning Device in Block Number 1 (Figure 53.) . . . . . . . . . . . . . . . . . 78
Globally Winning Device in Block Number 1 (Figure 54.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Devices Below the Winning Device in Block Number 1 (Figure 55.). . . . . . . . . . . . . . . . . . . . . 80
Devices Above the Winning Device in Block Number 2 (Figure 56.) . . . . . . . . . . . . . . . . . . . . 81
Globally Winning Device in Block Number 2 (Figure 57.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Devices Below the Winning Device in Block Number 2 (Figure 58.). . . . . . . . . . . . . . . . . . . . . 83
Devices Above the Winning Device in Block Number 3 (Figure 59.) . . . . . . . . . . . . . . . . . . . . 84
Globally Winning Device in Block Number 3 (Figure 60.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Devices Below the Winning Device in Block Number 3 (not Device 30 - Last Device) . . . . . . . 86
Device 6 in Block Number 3 (Device 30 in Depth-Cascaded Table) (Figure 62.) . . . . . . . . . . . 87
Latency of SEARCH from Instruction to SRAM Access Cycle, 136-bit, Up to 31 Devices . . . . . . . 88
Shift of SSF and SSV from SADR (Table 40.). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
272-bit SEARCH on Tables Configured as x272 Using a Single M7020R Device . . . . . . . . . . 88
Hardware Diagram for a Table with One Device (Figure 63.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Timing Diagram for a 272-bit SEARCH for One Device (Figure 64.). . . . . . . . . . . . . . . . . . . . . . . . 90
x272 Table with One Device (Figure 65.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Latency of SEARCH from Cycles C and D to SRAM Access Cycle, 272-bit, 1 Device . . . . . . . . . . 91
Shift of SSF and SSV from SADR (Table 42.). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
272-bit SEARCH on Tables x272-configured Using Up to Eight M7020R Devices . . . . . . . . . 92
Hit/Miss Assumption (Table 43.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Hardware Diagram for a Table with Eight Devices (Figure 66.) . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
x272 Table with Eight Devices (Figure 67.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Timing Diagrams for x272-configured Using Up to Eight M7020R Devices . . . . . . . . . . . . . . . . . . 96
272-bit SEARCH for Device Number 0 (Figure 68.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
272-bit SEARCH for Device Number 1 (Figure 69.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
272-bit SEARCH for Device Number 7 (Last Device) (Figure 70.) . . . . . . . . . . . . . . . . . . . . . . 98
Latency of SEARCH from Cycles C and D to SRAM Access Cycle, 272-bit, Up to 8 Devices . . . . 99
Shift of SSF and SSV from SADR (Table 45.). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99


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