CYNSE10128-083FGCI CYPRESS [Cypress Semiconductor], CYNSE10128-083FGCI Datasheet - Page 18

• Manufacturer Part Number: CYNSE10128-083FGCI
• Manufacturer: CYPRESS [Cypress Semiconductor]

5.0
5.1
Ayama 10000 can operate in two different modes of operation: Non-Enhanced and Enhanced. The Non-Enhanced mode of
operation is provided for backward compatibility with the CYNSE70000 device family. The Enhanced mode allows the Ayama
10000 to utilize the features that can be used to lower power consumption, ease table management, increase data integrity and
increase Search throughput. These features are Mini-Key, Soft Priority, Parity, and MultiSearch. The following subsections
provide more information on each of the modes and features.
The device powers-up in Non-Enhanced mode. A switch to Enhanced mode and activation of the features require the user to
configure internal registers with appropriate values. Refer to Section 5.4 for detailed information on the internal registers.
Table 5-1 lists the features and functions that are different between the two modes of operation.
Table 5-1. Summary of Non-Enhanced and Enhanced Mode Features and Functions Differences
5.1.1
In the Non-Enhanced mode of operation, the Ayama 10000 device is organized into 32/16/8 partitions (corresponds to
CYNSE10512/256/128, respectively) that each can be configured to be 8K x 72, 4K x 144, or 2K x 288. The 576-bit table width
configuration is not supported in this operation mode. The LSB of each 72-bit is designated to indicate whether that entry is used
or not. When the entry is empty, that bit must be set to 0. When the entry is used, that bit must be set to 1. For example, in a
288-bit table a used entry will have bit[0], bit[72], bit[144], and bit[216] set to 1. When all bit[0] are set to 1, the Ayama 10000 will
assert FULO[1:0] to “11.”
References are present throughout this document to indicates features that are applicable when device is in this mode.
Internal registers for configuration: CONFIG and CMD.
5.1.2
In Enhanced mode, Ayama 10000 is organized into 128/64/32 blocks (corresponds to CYNSE10512/256/128 respectively) of
2K x 72 which can also be configured into 1K x 144, 512 x 288, or 256 x 576. The Mini-Key, Soft Priority, Parity, and MultiSearch
features can also be activated. Each block has internal block registers associated to it that needs to be initialized before the device
goes into normal operation. Figure 5-1 shows the general overview of the block registers association.
References are present throughout this document to indicates features that are applicable when the device is in this mode.
Document #: 38-02069 Rev. *F
Maximum Search Throughput
MultiSearch™
Soft Priority™
Mini-Key™
Parity
Learn Operation
Where to Configure the Table Width
Table Widths Supported
Data and Mask Array Organization
Modes of Operation
Non-Enhanced Mode
Enhanced Mode
Features/Functions
Functional Description
133 MSPS
No
No
No
No
Data from CMPR Register;
Target Data Array;
Supports x72 and x144 table widths
CONFIG Register
x72, x144, x288
32/16/8 8Kx72-bit Partitions for
CYNSE10512/256/128 respectively
CONFIDENTIAL
PRELIMINARY
Non-Enhanced
266 MSPS
Yes
Yes
Yes
Yes
Data from CMPR Register or DQ Bus;
Target Data or Mask Array;
Supports all table widths
BMR Register
x72, x144, x288, x576
128/64/32 2Kx72-bit Blocks for
CYNSE10512/256/128 respectively
Enhanced
CYNSE10512
CYNSE10256
CYNSE10128
Page 18 of 153
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