Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

CYNSE10512 Datasheet(PDF) 21 Page - Cypress Semiconductor

Part # CYNSE10512
Description  Ayama??10000 Network Search Engine
Download  153 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

CYNSE10512 Datasheet(HTML) 21 Page - Cypress Semiconductor

Back Button CYNSE10512 Datasheet HTML 17Page - Cypress Semiconductor CYNSE10512 Datasheet HTML 18Page - Cypress Semiconductor CYNSE10512 Datasheet HTML 19Page - Cypress Semiconductor CYNSE10512 Datasheet HTML 20Page - Cypress Semiconductor CYNSE10512 Datasheet HTML 21Page - Cypress Semiconductor CYNSE10512 Datasheet HTML 22Page - Cypress Semiconductor CYNSE10512 Datasheet HTML 23Page - Cypress Semiconductor CYNSE10512 Datasheet HTML 24Page - Cypress Semiconductor CYNSE10512 Datasheet HTML 25Page - Cypress Semiconductor Next Button
Zoom Inzoom in Zoom Outzoom out
 21 / 153 page
background image
CONFIDENTIAL
PRELIMINARY
CYNSE10512
CYNSE10256
CYNSE10128
Document #: 38-02069 Rev. *F
Page 21 of 153
Core Parity
The Core includes a one-bit parity for each 72-bit entry in the data and mask arrays. When writing into the data or mask array,
the NSE will calculate and generate the one-bit parity for each 72-bit data. Each block also has a block-associated internal register
to enable the parity checking for the block (BPAR). When disabled, the block will ignore the Read Parity command.
To issue the Read Parity command, the ASIC issues a Read command and sets the Parity field in the parameters sent through
the DQ bus as described in Table 5-25. Core parity checking is performed in parallel on four adjacent 72-bit entries per pair of
blocks. At the beginning of each parity operation, an internal address counter is incremented. The new incremented address is
then used for the parity check operation.
It will cycle through the data and mask arrays as well as odd and even blocks for both arrays for each Read Parity issued. If one
or more parity errors are detected, the error is reported in the block’s BPAR register. Then all errors are prioritized through an
arbiter to select the highest priority parity error, which is then reported in the PARITY register. PARERR_L will also be set to 0
when there is a parity error. PARERR_L is valid on the (5+TLSZ)th cycle of latency. For example, with TLSZ set to “00” and the
command is issued at Cycle1, PARERR_L will be valid on Cycle6. Read Parity also responds to broadcast CHIPID selection.
Figure 5-5 shows the timing diagram of a Core Parity error during a Read Parity instruction. The PARERR_L signal goes Low
5 cycles after the error is detected.
There are two basic flows for parity error recovery. The first flow is by reading the highest priority parity error address stored in
the PARITY register, fix the error, decrement the internal address counter and reissue Read Parity. The second flow is by reading
the PARITY register to obtain the location, reading the BPAR registers to locate blocks that has the error and then fixing those
locations.
cycle
cycle
cycle
cycle
cycle
cycle
288-bit SEARCH
1
2
345
6
CLK2X
CMDV
CMD[1:0]
PAR[0]
Even DQ
CMD[10:2]
A
B
PHS_L
cycle
7
cycle
8
cycle
9
cycle
10
A
B
Odd
bits
Odd DQ
bits
PAR[1]
Odd Odd
Even
Odd
Odd
Even
Even
PARERR_L
incorrect value for PAR[1]
TT+1
T+2
T+3
T+4
Figure 5-4. Timing Diagram of a DQ Bus Parity Error (288-bit Search, TLSZ=00)
[+] Feedback
[+] Feedback


Similar Part No. - CYNSE10512

ManufacturerPart #DatasheetDescription
logo
Cypress Semiconductor
CYNSE70032 CYPRESS-CYNSE70032 Datasheet
3Mb / 126P
   Network Search Engine
CYNSE70032-66BGC CYPRESS-CYNSE70032-66BGC Datasheet
3Mb / 126P
   Network Search Engine
CYNSE70032-66BGI CYPRESS-CYNSE70032-66BGI Datasheet
3Mb / 126P
   Network Search Engine
CYNSE70032-83BGC CYPRESS-CYNSE70032-83BGC Datasheet
3Mb / 126P
   Network Search Engine
CYNSE70064A CYPRESS-CYNSE70064A Datasheet
3Mb / 127P
   Search Engine
More results

Similar Description - CYNSE10512

ManufacturerPart #DatasheetDescription
logo
Integrated Device Techn...
75K62100 IDT-75K62100 Datasheet
56Kb / 3P
   NETWORK SEARCH ENGINE
logo
Cypress Semiconductor
CYNSE70032 CYPRESS-CYNSE70032 Datasheet
3Mb / 126P
   Network Search Engine
logo
Integrated Device Techn...
75K72100_0509 IDT-75K72100_0509 Datasheet
440Kb / 3P
   Network Search Engine
75K62100_0509 IDT-75K62100_0509 Datasheet
441Kb / 3P
   NETWORK SEARCH ENGINE
75N42102 IDT-75N42102 Datasheet
430Kb / 3P
   NETWORK SEARCH ENGINE 32K x 72 Entries
IDT75K72100 IDT-IDT75K72100 Datasheet
62Kb / 3P
   Network Search Engine 256K x 72 Entries
75N43102 IDT-75N43102_05 Datasheet
430Kb / 3P
   NETWORK SEARCH ENGINE 32K x 72 Entries
75N43102 IDT-75N43102 Datasheet
42Kb / 4P
   NETWORK SEARCH ENGINE 32K x 72 Entries
IDT75P42100 IDT-IDT75P42100 Datasheet
67Kb / 3P
   NETWORK SEARCH ENGINE 32K x 72 Entries
75P52100 IDT-75P52100 Datasheet
436Kb / 3P
   NETWORK SEARCH ENGINE 64K x 72 Entries
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  ...More


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com