CN103129185B - Data storage device and data access method, imaging device - Google Patents
Data storage device and data access method, imaging device Download PDFInfo
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- CN103129185B CN103129185B CN201110398886.6A CN201110398886A CN103129185B CN 103129185 B CN103129185 B CN 103129185B CN 201110398886 A CN201110398886 A CN 201110398886A CN 103129185 B CN103129185 B CN 103129185B
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Abstract
The invention provides a kind of data storage device and data access method thereof, imaging device, this data storage device comprises controller, storage stack and second group of memory, controller is connected with the first bus and the second bus, the clock pins of each memory in storage stack is connected to the first bus, the data pin of each memory in storage stack is connected to the second bus, and, the clock pins of each memory in second group of memory is connected to the second bus, the data pin of each memory in second group of memory is connected to the first bus.When the method comprises controller access storage stack, to the first bus tranmitting data register signal, and send data-signal to the second bus; During controller access second group of memory, send data-signal to the first bus, and to the second bus tranmitting data register signal.The present invention can increase the quantity of controller connected storage, meets the job requirement of imaging device.
Description
Technical field
The present invention relates to data to store and access field, especially relate to a kind of data storage device and data access method thereof, be provided with the imaging device of this data storage device.
Background technology
Imaging device, such as printer as common office equipment, for modern office provides great convenience.Existing printer is divided into ink-jet printer and laser printer, and ink-jet printer uses the print cartridge accommodating ink to spray ink as consumable container to paper, to form the word or pattern that need to print on paper; Laser printer then uses the cartridge accommodating carbon dust on medium, form the word or pattern that need to print as consumable container.
See Fig. 1, existing a kind of color inkjet printer has the supporting plate that the ink-jet printer shown in casing 11, Fig. 1 eliminates casing 11.Be provided with the movement 12 of ink-jet printer in casing 11, and be provided with a slide bar, print word car 14 and move back and forth along slide bar under the drive of motor (invisible in Fig. 1).Print in word car 14 and be provided with keyset (invisible in Fig. 1), keyset carries out communication by winding displacement 13 and movement 12.
Print on word car 14 and multiple print cartridge 15 is removably installed, in different print cartridge 15, accommodate the ink of different colours.The structure of print cartridge 15 as shown in Figure 2.Print cartridge 15 has housing 16, and housing 16 surrounds the cavity holding ink, and the lower end of cavity is provided with ink outlet port 17, and the ink in cavity is flowed out by ink outlet port 17, and to printing the confession tattooing needle ink supply of word car 14.
The outer wall of print cartridge 15 housing 16 is provided with chip piece 18, and chip 18 has substrate, and the side of substrate is provided with multiple electric contact 19, for being electrically connected with keyset.The opposite side of substrate is provided with the electronic module (invisible in Fig. 2) be electrically connected with electric contact 19.
See Fig. 3, be provided with controller 20 in the movement 12 of ink-jet printer, it is by the electronic module 21,24 of the chip of bus and multiple print cartridge 15 ... 27 etc. carry out communication.Bus comprises power line VCC, chip select line CS, clock bus CLK and data/address bus DAT, each electronic module 21,24 ... 27 are all electrically connected with above-mentioned bus, and receive power supply and signal.
Be provided with control unit 22 and memory 23 in electronic module 21, control unit 22 receives the signal that controller 20 sends, and performs corresponding order according to received signal.Such as, judge that the memory of which chip accessed by controller 20, write data to memory 23, or the data etc. that reading memory 23 stores.
Memory 23 is the memory of 24C series, and it stores the data relevant to print cartridge, comprises ink surplus etc. in cartridge model, applicable ink-jet printer model, print cartridge.Only may arrange a 24C memory in an electronic module, also can arrange multiple 24C memory, the data volume that this can store required for electronic module determines.
As shown in Figure 4, each memory 31,32 ... 38 are equipped with three address pin, A0, A1, A2 respectively, each address pin can connect low level, i.e. ground connection, or connection high level, is namely connected with power supply VCC, three address pin A0, the state that A1, A2 are different can be combined to form eight kinds of different addresses.Controller 20, in order to distinguish different memories, therefore needs to be conducted interviews to memory by the address of recognition memory, and therefore under the prior art, controller 20 can be connected with 8 memories at most.
Memory 31 also has clock pins SCL and data pin SDA, and clock pins SCL is connected on clock bus CLK, and receive the clock signal that controller 20 sends, data pin SDA is connected on data/address bus DAT, receives the data-signal that controller 20 sends.
See Fig. 5, when controller 20 sends signal, first commencing signal start is sent by clock bus CLK and data/address bus DAT, when sending commencing signal start, controller 20 sends a wider pulse signal to clock bus CLK, and to the process that the signal that data/address bus DAT sends is changed to low level by high level through.Namely memory carries out communication with controller 20 after receiving commencing signal start.
But, when print cartridge 15 quantity that ink-jet printer is installed is more than 8, or when the amount of memory that on ink-jet printer, all chips use is greater than 8, prior art is the job requirement that can not meet ink-jet printer, this will cause the use obstacle of ink-jet printer.
See Fig. 6, existing laser printer has casing 41, and casing 41 comprises upper cover 42, surrounds cavity 43 in casing, accommodates four handle boxes 45 in cavity 43, accommodates the carbon dust printing and use in each handle box 45.Outside the housing of handle box 45, chip 46 is installed, in chip 46, is provided with electronic module, in electronic module, be provided with 24C memory, store the data relevant to handle box.
And, movement (invisible in Fig. 6) is also provided with in casing 41, movement is provided with controller, controller is connected with bus, bus comprises power line, chip select line, clock bus and data/address bus, chip 46 on handle box 45 carries out exchanges data by above-mentioned bus and controller, and controller is identical with ink-jet printer with the connected mode of chip 46.Therefore, also there is the problem identical with ink-jet printer in laser printer, and namely controller can only connect at most 8 24C memories, can not meet the job requirement of laser printer.
In addition, the imaging devices such as existing most of duplicator, facsimile machine or all-in-one are also have casing, movement is provided with in casing, movement is provided with controller, and being also provided with cavity in casing, be removably provided with cartridge or carbon starch cylinder in cavity as consumable container, consumable container has the cavity holding carbon dust, and chip is set on the outer wall of consumable container, controller carries out communication by bus and chip.Also there is the problem that controller can only be connected with 8 24C memories at most in the imaging devices such as copy, facsimile machine or all-in-one, can not meet the job requirement of imaging device.
Summary of the invention
Main purpose of the present invention is to provide a fairly large number of data storage device of a kind of controller connected storage.
Another object of the present invention is to provide a kind of data access method of above-mentioned data storage device.
Another object of the present invention is to provide the more imaging device of amount of memory that a kind of controller connects.
For realizing above-mentioned main purpose, data storage device provided by the invention comprises controller, storage stack and second group of memory, controller is connected with the first bus and the second bus and sends signal to the first bus and the second bus, the clock pins of each memory in storage stack is connected to the first bus, the data pin of each memory in storage stack is connected to the second bus, and, the clock pins of each memory in second group of memory is connected to the second bus, the data pin of each memory in second group of memory is connected to the first bus.
From such scheme, in storage stack, the clock pins of each memory is connected to the first bus, and data pin is connected to the second bus, and such controller is by the first bus tranmitting data register signal, and by second bus send data-signal, can with storage stack communication.And, because in second group of memory, the data pin of each memory is connected to the first bus, and clock pins is connected to the second bus, and such controller sends data-signal by the first bus, and by the second bus tranmitting data register signal, can with second group of memory communication.Visible, controller can with two groups of memory communications, and every storage stack can have at most 8 memories, like this can the amount of memory of expanding data storage device greatly.
A preferred scheme is, each the memory one_to_one corresponding in each memory in storage stack and second group of memory, and each memory in storage stack has identical address with memory corresponding in second group of memory.
As can be seen here, corresponding with each memory of second group of memory and there is identical address by arranging storage stack, can all memories that can access of application controller to greatest extent, make the maximum storage space of data storage device.
For realizing another above-mentioned object, the invention provides the data access method of above-mentioned data storage device, when comprising controller access storage stack, to the first bus tranmitting data register signal, and sending data-signal to the second bus; During controller access second group of memory, send data-signal to the first bus, and to the second bus tranmitting data register signal.
From such scheme, controller, by sending different signals to two buses, can access two groups of memories, like this, made full use of the address of every storage stack, controller can carry out communication with 16 memories, expands the data storage capacity of data storage device.
For realizing an above-mentioned object again, imaging device provided by the invention comprises casing, the cavity installing consumable container is provided with in casing, and be provided with movement in casing, movement has controller, controller and the first bus and and the second bus be connected and send signal to the first bus and described second bus, consumable container is provided with chip, each chip is provided with memory, wherein, the all memories be arranged on all chips are divided into two groups, the clock pins of each memory in storage stack is connected to the first bus, the data pin of each memory in storage stack is connected to the second bus, the clock pins of each memory in second group of memory is connected to the second bus, the data pin of each memory in second group of memory is connected to the first bus.
As can be seen here, when the controller of movement is to the first bus tranmitting data register signal and to the second bus transmission data-signal, communication can be carried out with storage stack, controller to first bus send data-signal and to during the second bus tranmitting data register signal can with second group of memory communication.Because the quantity of every storage stack can reach 8 at most, therefore controller can be stored into work and interrogates with 16 at most, and all memory summations of the consumable container of imaging device can the most nearly 16, can meet the job requirement of imaging device like this.
Accompanying drawing explanation
Fig. 1 is the structure chart of existing a kind of ink-jet printer.
Fig. 2 is the schematic enlarged-scale view of existing print cartridge.
Fig. 3 is the electric theory diagram that the controller of existing ink-jet printer is connected with the electronic module of ink box chip.
Fig. 4 is the electrical schematic diagram that the controller of existing ink-jet printer is connected with the memory of ink box chip.
The clock signal that Fig. 5 sends when being controller access memory and data signal waveforms figure.
Fig. 6 is the STRUCTURE DECOMPOSITION figure of existing a kind of laser printer.
Fig. 7 is the electrical schematic diagram of data storage device embodiment of the present invention.
Below in conjunction with drawings and Examples, the invention will be further described.
Detailed description of the invention
Imaging device of the present invention can be ink-jet printer, and also can be laser printer, can also be duplicator, facsimile machine, all-in-one etc., below in conjunction with each embodiment, the present invention is described in detail.
Ink-jet printer embodiment:
The imaging device of the present embodiment is ink-jet printer, and it has casing, is provided with and prints word car in casing, and printing word car can move back and forth along slide bar.Print word car and have cavity, be provided with multiple print cartridge as consumable container in cavity, each print cartridge has housing, and surround the cavity holding ink in housing, be provided with ink outlet port below the cavity of print cartridge, ink is flowed out by ink outlet port.
The housing exterior walls of print cartridge is provided with chip, and it has one piece of substrate, and the one side of substrate is provided with the multiple electric contacts as communication unit, for being connected with the electric contact of ink-jet printer.Certainly, if be wireless telecommunications between ink-jet printer and consumable chip, then communication unit is the antenna for wireless telecommunications.Be provided with the electronic module be connected with electric contact at the another side of substrate, electronic module has one or more memory, and in the present embodiment, all memories are the memory of 24C series.
Also be provided with controller in the movement of ink-jet printer, the electrical schematic diagram that controller is connected with the memory of all chips as described in Figure 7.Controller 50 is connected with two bus A, B, and all storages all have two pins to be connected in A, B two buses.All memories on all chips are divided into two groups, and storage stack is 51,52 ... 58, each memory 51,52 ... the data pin SDA of 58 is connected with bus A, and clock pins SCL is connected with bus B.
Each memory in storage stack is equipped with three address pin A0, A1, A2, by arranging the level of three address pin A0, A1, A2, can arrange each memory 51,52 ... the address of 58.Such as, three equal ground connection of address pin of memory 51, its address is 000, the address pin A1 of memory 52, A2 ground connection, and address pin A0 meets power supply VCC, and its address is 001, so analogizes.Due to storage stack 51,52 ... each storage address in 58 is all not identical, and controller 50 can access each memory by its address.
Second group of memory comprises 8 memories 61,62 ... 68, each memory 61,62 ... the clock pins SCL of 68 is connected to bus A, and data pin SDA is connected to bus B.Further, each memory is also provided with three address pin A0, A1, A2, and each memory 61,62 ... 68 addresses with oneself, the address as memory 61 is 000, and the address of memory 62 is 001.
Storage stack 51,52 ... each memory of 58 all with second group of memory 61,62 ... a memory correspondence in 68, and two of correspondence memories have identical address, such as, the address of memory 51 is 000, the address of memory 61 is also 000, the address of memory 52 is 001, and the address of memory 62 is also 001.
When controller 50 needs to carry out communication with storage stack, send data-signal to bus A, and to bus B tranmitting data register signal.During due to controller 50 and memory communication, first commencing signal is sent, as can be seen from Figure 5, when sending commencing signal start, clock signal and the level of data-signal are not identical, therefore memory can according to the level signal of bus A and bus B, and what judge that bus A sends is clock signal or data-signal.Only have what judge that clock pins SCL receives to be clock signal, and data pin SDA receives is data-signal, memory could start work.
Therefore, what storage stack judged that clock pins SCL receives is clock signal, and data pin receives SDA is after data-signal, with controller 50 communication.Now, what second group of memory received due to clock pins SCL is data-signal, and data pin SDA receives is clock signal, does not therefore work.
If controller 50 needs access second group of memory 61,62 ... any one in 68, to bus A tranmitting data register signal, and send data-signal, now second group of memory operation to bus B, and storage stack does not work.Visible, controller 50, by loading different signals to bus A from bus B, can be selected to carry out communication with storage stack or second group of memory.Further, because every storage stack all can arrange 8 maximum memories, therefore controller 50 can access at most 16 memories, greatly can expand the 24C amount of memory of the consumable container setting that imaging device is arranged like this.
If the consumable container quantity that imaging device is arranged is more than 8, or the amount of memory of all consumable container chips of imaging device is more than 8, the deficiency that the solution of the present invention solves existing issue can be applied, meet the job requirement of imaging device.
Laser printer embodiment:
The present embodiment has casing, is provided with movement in casing, and movement comprises a controller, and being provided with cavity in casing, be provided with multiple handle box in cavity, each handle box has a housing, housing surrounds the cavity that is held carbon dust, and one end of handle box cavity is provided with meal outlet.Further, an outer wall of handle box housing is removably provided with chip piece, and chip is provided with electronic module, is provided with memory in electronic module.Identical in the connected mode of controller and multiple memory and ink-jet printer, repeats no more.
The present invention singly can not apply in an imaging device, other field of storage can also be applied in, as as common data storage device, it arranges multiple memory, and a controller for controlling multiple memory is set, connection between controller and memory described by ink-jet printer embodiment, its method of work and similar.This storage device can be applied in the such as various electronic such as mobile phone, MP3.In addition, arrange more than 8 24C memories if single consumable chip needs, data storage device also can be applied in an electronic module, and this electronic module has controller and the 24C memory more than 8, and its connected mode as previously mentioned.
Finally it is emphasized that and the invention is not restricted to above-mentioned embodiment, the change such as the change of amount of memory, the change of data storage device application connected as data storage device controller also should be included in the protection domain of the claims in the present invention.
Claims (9)
1. data storage device, comprises
Controller, described controller is connected with the first bus and the second bus and sends signal to described first bus and described second bus;
Storage stack, the clock pins of each memory in described storage stack is connected to described first bus, and the data pin of each memory in described storage stack is connected to described second bus;
It is characterized in that:
Second group of memory, the clock pins of each memory in described second group of memory is connected to described second bus, and the data pin of each memory in described second group of memory is connected to described first bus;
Described controller to during described first bus tranmitting data register signal and to described second bus send data-signal, or to described first bus send data-signal time and to described second bus tranmitting data register signal.
2. data storage device according to claim 1, is characterized in that:
Each memory in described storage stack and described second group of memory is 24C memory.
3. data storage device according to claim 1 and 2, is characterized in that:
Each memory one_to_one corresponding in each memory in described storage stack and described second group of memory, and each memory in described storage stack has identical address with memory corresponding in described second group of memory.
4. the data access method of data storage device, described data storage device has controller and storage stack, described controller is connected with the first bus and the second bus, the clock pins of each memory in described storage stack is connected to described first bus, and the data pin of each memory in described storage stack is connected to described second bus;
It is characterized in that:
Described data storage device is also provided with second group of memory, and the clock pins of each memory in described second group of memory is connected to described second bus, and the data pin of each memory in described second group of memory is connected to described first bus;
The method comprises
Described in described controller access during storage stack, to described first bus tranmitting data register signal, and send data-signal to described second bus;
Described in described controller access during second group of memory, send data-signal to described first bus, and to described second bus tranmitting data register signal.
5. the data access method of data storage device according to claim 4, is characterized in that:
Each memory in described storage stack and described second group of memory is 24C memory.
6. the data access method of the data storage device according to claim 4 or 5, is characterized in that:
Each memory one_to_one corresponding in each memory in described storage stack and described second group of memory, and each memory in described storage stack has identical address with memory corresponding in described second group of memory.
7. imaging device, comprises
Casing, be provided with in described casing and install the cavity of consumable container, and be provided with movement in casing, described movement has controller, described controller and the first bus and and the second bus be connected and send signal to described first bus and described second bus;
Described consumable container is provided with chip, and described in each, chip is provided with memory;
It is characterized in that:
The all memories be arranged on all chips are divided into two groups, the clock pins of each memory in storage stack is connected to described first bus, the data pin of each memory in described storage stack is connected to described second bus, the clock pins of each memory in second group of memory is connected to described second bus, and the data pin of each memory in described second group of memory is connected to described first bus.
8. imaging device according to claim 7, is characterized in that:
Each memory in described storage stack and described second group of memory is 24C memory.
9. the imaging device according to claim 7 or 8, is characterized in that:
Each memory one_to_one corresponding in each memory in described storage stack and described second group of memory, and each memory in described storage stack has identical address with memory corresponding in described second group of memory.
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| CN201110398886.6A CN103129185B (en) | 2011-12-05 | 2011-12-05 | Data storage device and data access method, imaging device |
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| CN201110398886.6A CN103129185B (en) | 2011-12-05 | 2011-12-05 | Data storage device and data access method, imaging device |
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| CN103129185A CN103129185A (en) | 2013-06-05 |
| CN103129185B true CN103129185B (en) | 2016-04-06 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104417071B (en) * | 2013-09-06 | 2017-11-07 | 珠海艾派克微电子有限公司 | Memory group, imaging cartridge and the method for changing box chip |
| CN104802539B (en) * | 2014-01-29 | 2018-01-09 | 珠海艾派克微电子有限公司 | The feeding assembly and its chip of imaging device, slave addresses update method |
| EP3554844B1 (en) | 2017-01-31 | 2023-03-22 | Hewlett-Packard Development Company, L.P. | Accessing memory units in a memory bank |
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