CN109582602A - It is a kind of can automatic modulation energisation mode the design of flash data scrambler - Google Patents
It is a kind of can automatic modulation energisation mode the design of flash data scrambler Download PDFInfo
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- CN109582602A CN109582602A CN201811499854.3A CN201811499854A CN109582602A CN 109582602 A CN109582602 A CN 109582602A CN 201811499854 A CN201811499854 A CN 201811499854A CN 109582602 A CN109582602 A CN 109582602A
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- Prior art keywords
- excitation
- register
- selecting module
- initial value
- module
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
- G06F12/10—Address translation
- G06F12/1009—Address translation using page tables, e.g. page table structures
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
- G11C29/54—Arrangements for designing test circuits, e.g. design for test [DFT] tools
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Storage Device Security (AREA)
Abstract
The invention discloses it is a kind of can automatic modulation energisation mode the design of flash data scrambler, the scrambler has an excitation generator, it generates 32 outputs, 32 outputs with tandom number generator initial value selecting module carry out xor operation, as a result as the initialization value of register, the present invention passes through one excitation generator of addition, and can be by the random number sequence period expansion of scrambler tandom number generator to before 8 times, and such scrambler can be applied in the storage system of larger capacity.
Description
Technical field
The present invention relates to flash data scrambler technical field, specially it is a kind of can automatic modulation energisation mode flash memory number
It is designed according to scrambler.
Background technique
Within the storage system, the target scrambled to input data is to reduce local energy in storage chip and concentrate
And resulting adverse effect.The pseudo-random number sequence and input data usually generated by tandom number generator carries out exclusive or fortune
It calculates, the result of operation is the data saved.
Fig. 2 describes the circuit diagram of data scrambler common in flash chip, wherein 14 exclusive or (XOR) doors 100 arrive
113 and for providing the slave r of random number0To r311 32 bit register be referred to as tandom number generator.The tandom number generator
It is referred to as scrambler with XOR gate 114 to 121.
From r in Fig. 20To r31The execution of 32 bit registers and clock signal synchronization move to left for scrambling, this does not exist
It is shown in Fig. 2.The random number generation period of tandom number generator is 4KB(kilobytes), and the frame with 4KB size
(frame) data match, and a certain number of frames form page (page).Pass through the 8 of 114 to 121 pairs of tandom number generators of XOR gate
A output bit0 to bit7 and 1 byte input data D0 to D7 carries out exclusive or, and resulting result is used as scrambling result.
It is random in order to use adjacent frame data since random number is generated for a frame in modulated process
Number sequence shows difference, introduce random number initial value selecting module shown in Fig. 3, its address page by input, frame
One 0 to 66 value is calculated in location and other signals, searches the table of initialization of register value, opens in each frame data
When the scrambling that begins, to the initialization of register in tandom number generator, is generated and be different from used in other frame data scrambling with this
Random number sequence.
However, when needing to scrambling greater than the data of 67 page, the tandom number generator of front and the production is utilized
The scrambler of raw device cannot correctly make a response.
Summary of the invention
The purpose of the present invention is to provide it is a kind of can automatic modulation energisation mode the design of flash data scrambler, to solve
The problems mentioned above in the background art.
To achieve the above object, the invention provides the following technical scheme: it is a kind of can automatic modulation energisation mode flash memory number
It is designed according to scrambler, including initial-value table single module, register group, excitation value form module, register initial value selecting module,
Page address unit, frame address unit, hard disk function signal generator, W/E signal-count unit, institute are equipped in the register group
State initial-value table single module, page address unit, frame address unit, hard disk function signal generator, W/E signal-count unit difference
Connect register initial value selecting module, the register initial value selecting module connection excitation selecting module, the excitation value
Form module connection excitation selecting module.
Preferably, it is a kind of can automatic modulation energisation mode flash data scrambler design method the following steps are included:
A, register initial value selecting module passes through the page address unit of storing data, and frame address unit and other signals calculate simultaneously
Initial value list is searched with this, obtains 32 initial value outputs；
B, excitation selecting module is calculated by the page address of storing data and searches excitation value list with this, obtains 32 excitation values
Output；
C, 32 obtained after 32 output signal exclusive or of two above are as a result, transmit the register r of tandom number generator module0
To r31。
Compared with prior art, the beneficial effects of the present invention are: the scrambler has an excitation generator, its generation 32 is defeated
Out, xor operation is carried out with 32 outputs of tandom number generator initial value selecting module, as a result as the initialization of register
Value, the present invention can be expanded the random number sequence period of scrambler tandom number generator by one excitation generator of addition
To 8 times before, such scrambler be can be applied in the storage system of larger capacity for exhibition.
Detailed description of the invention
Fig. 1 is present system schematic diagram；
Fig. 2 is the circuit diagram of data scrambler common in flash chip；
Fig. 3 is random number initial value selecting module block diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the present invention provides a kind of technical solution: it is a kind of can automatic modulation energisation mode flash data scrambling
Device design, including initial-value table single module 1, register group 2, excitation value form module 3, register initial value selecting module 4, institute
It states and is equipped with page address unit 5, frame address unit 6, hard disk function signal generator 7, W/E signal-count unit in register group 2
8, the initial-value table single module 1, page address unit 5, frame address unit 6, hard disk function signal generator 7, W/E signal-count
Unit 8 is separately connected register initial value selecting module 4, the connection of the register initial value selecting module 4 excitation selecting module
3, the connection of the excitation value form module 3 excitation selecting module 9.
It is a kind of can automatic modulation energisation mode flash data scrambler design method, comprising the following steps:
A, register initial value selecting module passes through the page address unit of storing data, and frame address unit and other signals calculate simultaneously
Initial value list is searched with this, obtains 32 initial value outputs；
B, excitation selecting module calculates by the page address of storing data and searches with this excitation value list of following table, obtains 32
Excitation value output；
C, 32 obtained after 32 output signal exclusive or of two above are as a result, transmit the register r of tandom number generator module0
To r31, by doing so, tandom number generator has bigger random one number time, the storage in more high storage capacity can be applied
In system.
Claims (2)
1. one kind can automatic modulation energisation mode the design of flash data scrambler, it is characterised in that: including initial-value table single mode
Block (1), register group (2), excitation value form module (3), register initial value selecting module (4), the register group (2) are interior
It is described equipped with page address unit (5), frame address unit (6), hard disk function signal generator (7), W/E signal-count unit (8)
Initial-value table single module (1), page address unit (5), frame address unit (6), hard disk function signal generator (7), W/E signal meter
Counting unit (8) is separately connected register initial value selecting module (4), register initial value selecting module (4) the connection excitation
Selecting module (3), excitation value form module (3) connection excitation selecting module (9).
2. realize one kind described in claim 1 can automatic modulation energisation mode flash data scrambler design method, it is special
Sign is: the following steps are included:
A, register initial value selecting module passes through the page address unit of storing data, and frame address unit and other signals calculate simultaneously
Initial value list is searched with this, obtains 32 initial value outputs；
B, excitation selecting module is calculated by the page address of storing data and searches excitation value list with this, obtains 32 excitation values
Output；
C, 32 obtained after 32 output signal exclusive or of two above are as a result, transmit the register r of tandom number generator module0
To r31。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811499854.3A CN109582602A (en) | 2018-12-09 | 2018-12-09 | It is a kind of can automatic modulation energisation mode the design of flash data scrambler |
| PCT/CN2019/078466 WO2020118947A1 (en) | 2018-12-09 | 2019-03-18 | Flash memory data scrambler design capable of automatically modulating excitation mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811499854.3A CN109582602A (en) | 2018-12-09 | 2018-12-09 | It is a kind of can automatic modulation energisation mode the design of flash data scrambler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109582602A true CN109582602A (en) | 2019-04-05 |
Family
ID=65927950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811499854.3A Withdrawn CN109582602A (en) | 2018-12-09 | 2018-12-09 | It is a kind of can automatic modulation energisation mode the design of flash data scrambler |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109582602A (en) |
| WO (1) | WO2020118947A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208210B (en) * | 2010-03-31 | 2016-04-27 | 深圳市朗科科技股份有限公司 | Flash memory device and date storage method thereof |
| US8984373B2 (en) * | 2012-02-22 | 2015-03-17 | Silicon Motion, Inc. | Method for accessing flash memory and associated flash memory controller |
| US20150199282A1 (en) * | 2014-01-16 | 2015-07-16 | Storart Technology Co., Ltd. | Scramble random seed prediction method with storage device built-in data copy back procedure |
| CN105761753A (en) * | 2016-02-02 | 2016-07-13 | 清华大学 | Data scrambler/descrambler, memory device and scrambling/descrambling method |
| CN108255464B (en) * | 2016-12-28 | 2021-09-28 | 北京忆恒创源科技股份有限公司 | Data scrambling method, descrambling method and device thereof |
-
2018
- 2018-12-09 CN CN201811499854.3A patent/CN109582602A/en not_active Withdrawn
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2019
- 2019-03-18 WO PCT/CN2019/078466 patent/WO2020118947A1/en active Application Filing
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| Publication number | Publication date |
|---|---|
| WO2020118947A1 (en) | 2020-06-18 |
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| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190405 |
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| WW01 | Invention patent application withdrawn after publication |