CYNSE70064A-50BGC Cypress Semiconductor Corp, CYNSE70064A-50BGC Datasheet - Page 49

• 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

10.10
The hardware diagram of the Search subsystem of eight devices is shown in Figure 10-30. The following are parameters
programmed into the eight devices.
Note. All eight devices must be programmed with the same value of TLSZ and HLAT. Only the last device in the table must be
programmed with LRAM = 1 and LDEV = 1 (device number 7 in this case). All other upstream devices must be programmed with
LRAM = 0 and LDEV = 0 (devices 0 through 6 in this case).
Figure 10-31 shows the timing diagram for a Search command in the 136-bit-configured table of eight devices for device 0.
Figure 10-32 shows the timing diagram for a Search command in the 136-bit-configured table consisting of eight devices for
device number 1. Figure 10-33 shows the timing diagram for a Search command in the 136-bit configured table consisting of
eight devices for device number 7 (the last device in this specific table). For these timing diagrams, four 136-bit searches are
performed sequentially, and the following Hit/Miss assumptions were made (see Table 10-20).
Table 10-20. Hit/Miss Assumption
Document #: 38-02041 Rev. *F
• First seven devices (devices 0–6): CFG = 01010101, TLSZ = 01, HLAT = 010, LRAM = 0, and LDEV = 0.
• Eighth device (device 7): CFG = 01010101, TLSZ = 01, HLAT = 010, LRAM = 1, and LDEV = 1.
Search Number
Devices 2–6
136-bit Search on Tables Configured as ×136 Using up to Eight CYNSE70064A Devices
Device 0
Device 1
Device 7
Miss
Miss
Miss
Hit
1
Miss
Miss
Miss
Hit
2
Miss
Hit
Hit
Hit
3
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Miss
Miss
Miss
Hit
4