CYNSE70064A-50BGC Cypress Semiconductor Corp, CYNSE70064A-50BGC Datasheet - Page 93

• Manufacturer Part Number: CYNSE70064A-50BGC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CYNSE70064A-50BGC

• Operating Supply Voltage (typ): 1.8/2.5/3.3V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Package Type: BGA
• Mounting: Surface Mount
• Lead Free Status / Rohs Status: Not Compliant

(Search2). DQ[67:66] is 10 in each of the A, B, C, and D cycles of the ×272-bit Search (Search3). By having table designation
bits, the CYNSE70064A enables the creation of many tables in a bank of search engines of different widths.
Figure 10-72 shows the sample table. Two bits in each 68-bit entry will need to designated as the table number bits. One example
choice can be the 00 values for the table configured as ×68, 01 values for tables configured as ×136, and 10 values for tables
configured as ×272. For the above explanation, it is further assumed that bits [67:66] for each entry will be designed as such table
designation bits.
Document #: 38-02041 Rev. *F
CFG = 1010101010101010, HLAT = 010, TLSZ = 00, LRAM = 1, LDEV = 1.
SADR[21:0]
CMD[8:2]
CMD[2]
PHS_L
CMDV
CMD[1:0]
ALE_L
WE_L
CLK2X
OE_L
CE_L
SSV
SSF
DQ
Figure 10-71. Timing Diagram for Mixed Search (One Device)
1
0
0
0
1
1
Figure 10-72. Multiwidth Configurations Example
cycle
A B A B A B C D
A B A B A B A B
1
01
D1
Search1
cycle
Search2
16 K
2
4 K
2 K
D2
01
cycle
3
Search3
CFG = 10010000
D3
cycle
68
01
4
136
272
cycle
A1
5
cycle
6
A2
1
0
0
0
Search1 S earch2
cycle
×68
7
Hit
1
1
1
0
cycle
8
×136
A3
A3
1
1
Hit
cycle
9
Search2
0
0
0
0
×272
cycle
10
Hit
1
1
1
1
CYNSE70064A
0
0
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