CYNSE10512A-133FGC Cypress Semiconductor Corp, CYNSE10512A-133FGC Datasheet - Page 21

• Manufacturer Part Number: CYNSE10512A-133FGC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CYNSE10512A-133FGC

• Operating Supply Voltage (typ): 1.2V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Not Compliant

Document #: 38-02110 Rev. *B
PARERR_L
5.1.2.4 MultiSearch
When MultiSearch is activated, the Core is divided into two separate arrays. Each array is organized into 64/32/16 blocks
(corresponds to CYNSE10512A/CYNSE10256A/CYNSE10128A, respectively) of 2K 72-bit entries. Each block can be configured
to be of width x72, x144, x288, or x576. This separation allows a Search operation to simultaneously perform the search across
both arrays. The output signals will run at double data rate to effectively increase the throughput to a maximum of 266 million
searches per second. Each array can have multiple tables with different widths. Single-Search operation outputs are driven at
the rising edge of CLK1X. When the device has the MultiSearch feature enabled and MultiSearch operation is issued (Single-
Search can still be issued even when MultiSearch is enabled), the output is driven at both rising and falling edges of CLK1X
(rising edge of CLK2X). Output from Array 0 is driven at the rising edge while output from Array 1 is driven at the falling edge of
CLK1X. Figure 5-6 shows an illustration of the MultiSearch operation.
Both arrays will use the same Search key except for search operation on 72-bit wide tables. Multisearching across tables of
different widths is possible. Table 5-2 contains a summary of possible multisearching combinations.
Note. Throughout this document, the search that is issued through the command (CMD) bus is called the leading search.
Similarly, the trailing search is the second search that uses a subset of the data presented for the leading search. This data subset
is aligned with the least significant (trailing) 72-bit word. For 144-bit and 288-bit searches, the leading search needs to be greater
than or equal to the width of the trailing search.
CMD[10:2]
CMD[1:0]
PHS_L
CLK2X
CMDV
DQ
cycle
A
PARITY
READ
1
T
B
cycle
2
Figure 5-5. Timing Diagram of a Core Parity Error (TLSZ=00)
SEARCH
T+1
cycle
Figure 5-6. MultiSearch Operation Overview
CONFIDENTIAL
3
T+2
x72
x72
x576
cycle
4
RESULT0 RESULT1
Array 0
T+3
cycle
Time
5
T+4
x72
x144
x288
cycle
6
Array 1
T+5
cycle
7
cycle
8
CYNSE10512A
CYNSE10256A
CYNSE10128A
cycle
9
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cycle
10