CYNSE10512A-133FGC Cypress Semiconductor Corp, CYNSE10512A-133FGC Datasheet - Page 26

• 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
Table 5-6. List of Internal Registers (continued)
Note: For BMR, BPR, BPAR, BNFA, and BPRA0-3, the block (0- N, where N = 127 for CYNSE10512, N = 63 for CYNSE10256
and N = CYNSE10128) that will participate in the operation must be encoded in the BLKNUM field of the internal register address
space. Also, the addresses in Table 5-6 must be encoded in the REGSEL field of the internal register address space. See
Section 5.9.2.
5.4.1
The device contains 16 pairs of comparand registers (one pair is 144 bits) dynamically selected in every Search operation to store
the comparand presented on the DQ bus. The device may later use these registers when it executes a Learn operation. Search
and Learn commands specify the comparand registers in pairs. The Ayama 10000A device stores the Search command’s cycle
A comparand in the even-numbered register and the cycle B comparand in the odd-numbered register, as shown in Figure 5-8.
For wider width keys, pairs of comparand registers are concatenated together. The concatenation of the registers must be done
by the user. On a 72-bit operation, both halves of the comparand register must be loaded with the same value. When performing
MultiSearch operation, the comparand registers specified in the search command will be used for the leading search. For the
trailing searches, the NSE automatically selects the comparand register one index higher than the ones specified in the command
bus. When the device powers-up, the CMPR registers are initialized to 0.
5.4.2
The device contains 16 pairs of GMRs (one pair is 144 bits) dynamically selected in every Search operation to select the Search
subfield. The addressing of these registers is shown in Figure 5-9. The GMR index supplied on the command bus selects one of
1028–103
(decimal)
112–1023
Address
64–79
80–95
1024
1025
1026
1027
1
Comparand Register (CMPR)
Global Mask Register (GMR)
(Hexadecimal) Abbreviation
040 - 04F
050 - 05F
070 - 3F0
404 - 407
Address
400
401
402
403
Figure 5-8. Comparand Register Selection During Search and Learn Instructions
CPR0–15
SRR0–15
BPRA0x–
BPRA3x
BPARx
BNFAx
BMRx
BPRx
–
CONFIDENTIAL
(Read/Write)
Type
R/W
R/W
R/W
R/W
R/W
Address
index
R
R
–
15
0
1
143
Control Register. These registers provide Mini-Key and Soft
Priority for the associated operation. See Section 5.4.12.
Search Result Register. These registers provide information of the
next-free entry when the device is in the Enhanced mode. (Non-
Enhanced mode uses the NFA register to store the next-free entry
information.) See Section 5.4.13.
Reserved.
Block Mini-Key Register. This register holds the four Mini-Keys
associated with a block. There is one BMR per block. See
Section 5.4.14.
Block Priority Register. This register holds the four sub-block
priorities. There is one BPR per block. See Section 5.4.15.
Block Parity Register. This register contains the control and status
bits for controlling and detecting parity errors for a block. There is
one BPAR per block. See Section 5.4.16.
Block Next-free Address Register. This register contains the
next-free entry information for the block that it is associated with.
There is one BNFA per block. See Section 5.4.17.
Block Priority Register Aliases. These locations are aliases for
the corresponding BPRx. See Section 5.4.18.
72
30
0
2
4
6
.
.
.
.
.
72
31
1
3
5
7
.
.
.
.
0
Description
CYNSE10512A
CYNSE10256A
CYNSE10128A
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