CYNSE10512A-133FGC Cypress Semiconductor Corp, CYNSE10512A-133FGC Datasheet - Page 78

• 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
The following is the sequence of operation for a single 144-bit Search command (also refer to Subsection 6.2, “Command Bus
Parameters,” on page 50).
HLAT = 001 (binary), TLSZ = 10 (binary),
LRAM = 1 (binary), LDEV = 1 (binary).
Note: |(BHI[2:0)] stands for the boolean ‘OR’ of the entire bus BHI[2:0].
Note: |(LHI[6:0]) stands for the boolean ‘OR’ for the entire bus LHI[6:0].
Note: Each bit in BHO[2:0] is the same logical signal.
Note: Each bit in LHO[1:0] is the same logical signal.
• Cycle A:
M = 25 for CYNSE10512A, 24 for CYNSE10256A, 23 for CYNSE10128A
— Command Bus: The host ASIC drives CMDV HIGH and applies Search command CMD[1:0] = “10” (binary). CMD[2] must
— DQ Bus: DQ[71:0] must be driven with the 72-bit data to be compared.
be driven to logic low. {CMD[10],CMD[5:3]} signals must be driven with the index to the GMR pair for use in this Search
operation. CMD[8:6] signals must be driven with the same bits that will be driven on SADR[25:23] for CYNSE10512A,
SADR[24:22] for CYNSE10256A, SADR[23:21] for CYNSE10128A by this device if it has a hit. CMD[9] must be driven to
logic high to indicate a 144-bit search. If Enhanced Mode and MultiSearch Enable bits are both set to 1in the Command
Resister, CMD[8] has to be set to 0 for Single Searches. For 288-bit and 576-bit Single Searches, all Cycle A CMD[8] bits
have to be set to 0’s.
SADR[
CMD[10:2]
I(BHI[2:0])
|(LHI[6:0])
CMD[1:0]
BHO[2:0]
LHO[1:0]
CLK2X
PHS_L
ALE_L
CMDV
WE_L
CE_L
OE_L
SSV
SSF
M
DQ
Figure 6-25. 144-bit Search Timing Diagram for Device Number 6 in Block #3
:0]
0
0
1
0
0
0
0
0
0
0
CONFIDENTIAL
cycle
W1W2X1X2 Y1 Y2Z1 Z2
Search1
1
A B A B A B A B
10
D1
cycle
Search2
2
10
D2
cycle
Search3
3
10
D3
cycle
4
Search4
10
D4
cycle
5
cycle
6
(Hit on some
device above)
cycle
7
Search1
cycle
(Hit on some
device above)
Search2
8
z
z
z
z
cycle
9
z
z
Search3
(Hit on some
device above)
cycle
10
CYNSE10512A
CYNSE10256A
CYNSE10128A
0
0
1
Search4
(Global miss; this
device is default driver)
1
0
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