CYNSE70064A-50BGC Cypress Semiconductor Corp, CYNSE70064A-50BGC Datasheet - Page 72

• 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

10.13
The hardware diagram of the Search subsystem of eight devices is shown in Figure 10-52. The following are the parameters
programmed in 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 10-53 shows the timing diagram for a Search command in the 272-bit-configured table of eight devices for device
number 0. Figure 10-54 shows the timing diagram for a Search command in the 272-bit-configured table of eight devices for
device number 1. Figure 10-55 shows the timing diagram for a Search command in the 272-bit-configured table of eight devices
for device number 7 (the last device in this specific table). For these timing diagrams three 272-bit searches are performed
sequentially. The following Hit/Miss assumptions were made as shown in Table 10-28.
Table 10-28. Hit/Miss Assumption
Document #: 38-02041 Rev. *F
• First seven devices (devices 0–6): CFG = 10101010, TLSZ = 01, HLAT = 000, LRAM = 0, and LDEV = 0.
• Eighth device (device 7): CFG = 10101010, TLSZ = 01, HLAT = 000, LRAM = 1, and LDEV = 1.
Search Number
272-bit Search on Tables x272-configured Using up to Eight CYNSE70064A Devices
Devices 2–6
Device 0
Device 1
Device 7
Miss
Miss
Miss
Hit
1
Miss
Miss
Miss
Hit
2
CYNSE70064A
Miss
Miss
Miss
Miss
3
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