CYNSE70064A-50BGC Cypress Semiconductor Corp, CYNSE70064A-50BGC Datasheet - Page 53

• 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

The following is the sequence of operation for a single 136-bit Search command (also see Subsection 10.2, “Commands and
Command Parameters” on page 19).
Document #: 38-02041 Rev. *F
CFG = 01010101, HLAT = 010, TLSZ = 01, LRAM = 1, LDEV = 1.
Note: |(LHI[6:0]) stands for the boolean ‘OR’ of the entire bus LHI[6:0].
Note: Each bit in LHO[1:0] is the same logical signal.
• Cycle A: The host ASIC drives CMDV HIGH and applies Search command code (10) on CMD[1:0] signals. CMD[5:3] signals
• Cycle B: The host ASIC continues to drive CMDV HIGH and to apply the command code for Search command (10) on
must be driven with the index to the GMR pair for use in this Search operation. CMD[8:7] signals must be driven with the same
bits that will be driven by this device on SADR[21:20] if it has a hit. DQ[67:0] must be driven with the 68-bit data ([135:68]) in
order to be compared against all even locations. The CMD[2] signal must be driven to a logic 0.
CMD[1:0]. CMD[5:2] must be driven by the index of the comparand register pair for storing the 136-bit word presented on the
DQ bus during cycles A and B. CMD[8:6] signals must be driven with the SSR index that will be used for storing the address
of the matching entry and the hit flag (see page 14 for the description of SSR[0:7]). The DQ[67:0] is driven with 68-bit data
([67:0]) compared against all odd locations.
SADR[21:0]
PHS_L
CMD[1:0]
CMD[8:2]
|(LHI[6:0])
CMDV
LHO[1:0]
ALE_L
Figure 10-33. Timing Diagram for 136-bit Search Device Number 7 (Last Device)
CLK2X
OE_L
CE_L
WE_L
SSF
SSV
DQ
0
0
0
0
1
0
cycle
Search1
A B A B A B A B
1
A B A B A B A B
01
D1
cycle
Search2
2
01
D2
cycle
Search3
3
01
D3
cycle
4
Search4
01
D4
cycle
5
cycle
6
cycle
7
z
z
z
Search1
(Miss
on this
device.)
cycle
8
Search2
(Miss
on this
device.)
cycle
9
A4
z
z
Search3
(Local
but not
global
winner.)
cycle
10
1
0
0
Search4
(Global
winner.)
CYNSE70064A
1
1
0
0
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