CN103129185A - Data storage device, data access method and imaging device - Google Patents
Data storage device, data access method and imaging device Download PDFInfo
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- CN103129185A CN103129185A CN2011103988866A CN201110398886A CN103129185A CN 103129185 A CN103129185 A CN 103129185A CN 2011103988866 A CN2011103988866 A CN 2011103988866A CN 201110398886 A CN201110398886 A CN 201110398886A CN 103129185 A CN103129185 A CN 103129185A
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Abstract
The invention provides a data storage device, a data access method and an imaging device. The data storage device comprises a controller, a first group of storage units and a second group of storage units, wherein the controller is connected with a first bus and a second bus, clock pins of storage units in the first group of storage units are all connected with the first bus, data pins of the storage units in the first group of storage units are all connected with the second bus, clock pins of storage units in the second group of storage units are all connected with the second bus, and data pins of the storage units in the second group of storage units are all connected with the first bus. The data access method comprises the steps of sending clock signals to the first bus and sending data signals to the second bus when the controller accesses the first group of storage units; and sending the data signals to the first bus and sending the clock signals to the second bus when the controller accesses the second group of storage units. According to the data storage device, the data access method and the imaging device, the number of storage units connected with the controller can be increased, and working requirements of the imaging device can be met.
Description
Technical field
The present invention relates to data storages 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 that accommodates ink to spray ink as consumable container to paper, to form word or the pattern that needs printing on paper; Laser printer uses word or the pattern that the cartridge that accommodates carbon dust forms on medium as consumable container needs printing.
Referring to Fig. 1, existing a kind of color inkjet printer has casing 11, and ink-jet printer shown in Figure 1 has omitted the supporting plate of 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 a plurality of print cartridges 15 removably are installed, accommodate the ink of different colours in different print cartridges 15.The structure of print cartridge 15 as shown in Figure 2.Print cartridge 15 has housing 16, and housing 16 surrounds the cavity that holds ink, and the lower end of cavity is provided with ink outlet port 17, and the ink in cavity flows out by ink outlet port 17, and to print word car 14 for the tattooing needle ink supply.
On the outer wall of print cartridge 15 housings 16, chip piece 18 is installed, chip 18 has substrate, and a side of substrate is provided with a plurality of electric contacts 19, is used for being electrically connected to keyset.The opposite side of substrate is provided with the electronic module (invisible in Fig. 2) that is electrically connected to electric contact 19.
Referring to 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 a plurality of print cartridge 15 ... 27 grades are carried 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 all are electrically connected to above-mentioned bus, and receive power supply and signal.
Be provided with control module 22 and memory 23 in electronic module 21, control module 22 receives the signal that controller 20 sends, and carries out corresponding order according to the signal that receives.For example, the memory of which chip of judgement controller 20 access, to memory 23 data writings, perhaps read memory 23 data of storing etc.
Memory 23 is the memory of 24C series, and it stores the data relevant to print cartridge, comprises in print cartridge model, applicable ink-jet printer model, print cartridge ink surplus etc.In an electronic module, a 24C memory may only be set, a plurality of 24C memories also can be set, this can determine according to the data volume of the required storage of electronic module.
As shown in Figure 4, each memory 31,32 ... 38 are equipped with three address pin, respectively A0, A1, A2, each address pin can connect low level, be ground connection, perhaps connect high level, namely be connected with power supply VCC, three address pin A0, A1, the state that A2 is different can be combined to form eight kinds of different addresses.Therefore controller 20 need to conduct interviews to memory by the address of recognition memory in order to distinguish different memories, and therefore under prior art, controller 20 can be connected with 8 memories at most.
Referring to Fig. 5, during controller 20 transmitted signal, at first send commencing signal start 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 the signal that sends to data/address bus DAT is through a process that is changed to low level by high level.Memory namely carries out communication with controller 20 after receiving commencing signal start.
Yet, print cartridge 15 quantity of installing on ink-jet printer are more than 8, the amount of memory that perhaps on ink-jet printer, all chips use is during greater than 8, and prior art is to satisfy the job requirement of ink-jet printer, and this will cause the use obstacle of ink-jet printer.
Referring to 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 in each handle box 45 to print the carbon dust that uses.Chip 46 is installed outside the housing of handle box 45, is provided with electronic module in chip 46, be provided with the 24C memory in electronic module, store the data relevant to handle box.
And, also be provided with movement (invisible in Fig. 6) 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 connected mode and the ink-jet printer of chip 46.Therefore, also there be the problem identical with ink-jet printer in laser printer, and namely controller can only connect at most 8 24C memories, can not satisfy the job requirement of laser printer.
In addition, the imaging devices such as existing most of duplicators, facsimile machine or all-in-one are also to have casing, be provided with movement in casing, movement is provided with controller, and also be provided with cavity in casing, cartridge or carbon starch cylinder removably be installed as consumable container in cavity, consumable container has the cavity that holds carbon dust, and on the outer wall of consumable container, chip is set, controller carries out communication by bus and chip.The problem that the imaging devices such as copy, facsimile machine or all-in-one also exist controller can only be connected with 8 24C memories at most can not satisfy 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.
A further 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, first group of memory and second group of memory, controller is connected with the first bus and the second bus and to the first bus and the second bus transmitted signal, the clock pin of each memory in first group of memory is connected to the first bus, the data pin of each memory in first group of memory is connected to the second bus, and, the clock pin 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.
By such scheme as seen, in first group of memory, the clock pin of each memory is connected to the first bus, and data pin is connected to the second bus, and controller is by the first bus tranmitting data register signal like this, and send data-signal by the second bus, can with first group of memory communication.And, because the data pin of each memory in second group of memory is connected to the first bus, and the clock pin is connected to the second bus, and controller sends data-signal by the first bus like this, and by the second bus tranmitting data register signal, can with second group of memory communication.As seen, controller can with two groups of memory communications, and each the group memory 8 memories, the amount of memory of expanding data storage device so greatly can be arranged at most.
A preferred scheme is, each memory in first group of memory is corresponding one by one with each memory in second group of memory, and in each memory in first group of memory and second group of memory, corresponding memory has identical address.
This shows, each memory by first group of memory and second group of memory are set is corresponding and have an identical address, and 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 purpose, the invention provides the data access method of above-mentioned data storage device, when comprising first group of memory of controller access, to the first bus tranmitting data register signal, and send data-signal to the second bus; During second group of memory of controller access, send data-signal to the first bus, and to the second bus tranmitting data register signal.
By such scheme as seen, controller can be accessed two groups of memories by sending different signals to two buses, like this, the address of each group memory is taken full advantage of, and controller can carry out communication with 16 memories, enlarges the data storage capacity of data storage device.
for realizing an above-mentioned purpose again, imaging device provided by the invention comprises casing, be provided with the cavity that consumable container is installed in casing, and be provided with movement in casing, movement has controller, controller and the first bus and and the second bus is connected and to the first bus and described the second bus transmitted signal, chip is installed on consumable container, each chip is provided with memory, wherein, all memories that are arranged on all chips are divided into two groups, the clock pin of each memory in first group of memory is connected to the first bus, the data pin of each memory in first group of memory is connected to the second bus, the clock pin 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.
This shows, when the controller of movement sends data-signal to the first bus tranmitting data register signal and to the second bus, can carry out communication with first group of memory, controller to the first bus send data-signal and during to the second bus tranmitting data register signal can with second group of memory communication.Because quantity of each group memory can reach at most 8, thus controller at most can with 16 be stored into the news that work, all memory summations of the consumable container of imaging device can most reach 16, can satisfy like this job requirement of imaging device.
Description of drawings
Fig. 1 is the structure chart of existing a kind of ink-jet printer.
Fig. 2 is the structure enlarged drawing 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 the 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.
The invention will be further described below in conjunction with drawings and Examples.
The specific embodiment
Imaging device of the present invention can be ink-jet printer, can be also laser printer, can also be duplicator, facsimile machine, all-in-one etc., and the present invention is described in detail below in conjunction with each embodiment.
Ink-jet printer embodiment:
The imaging device of the present embodiment is ink-jet printer, and it has casing, is provided with in casing to print the word car, and printing the word car can move back and forth along slide bar.Print the word car and have cavity, a plurality of print cartridges as consumable container are installed in cavity, each print cartridge has housing, surrounds the cavity that holds ink in housing, is provided with ink outlet port below the cavity of print cartridge, and ink flows out by ink outlet port.
On the housing outer wall of print cartridge, chip is installed, it has a substrate, and the one side of substrate is provided with a plurality of electric contacts as communication unit, is used for being connected with the electric contact of ink-jet printer.Certainly, if be wireless telecommunications between ink-jet printer and consumable chip, communication unit is for being used for the antenna of wireless telecommunications.Another side at substrate is provided with the electronic module that is connected with electric contact, and electronic module has one or more memories, 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 on A, two buses of B.All memories on all chips are divided into two groups, and first group of memory is 51,52 ... 58, each memory 51,52 ... 58 data pin SDA is connected with bus A, and clock pin SCL is connected with bus B.
Each memory in first group of memory is equipped with three address pin A0, A1, A2, by the level of three address pin A0, A1, A2 is set, each memory 51,52 can be set ... 58 address.For example, three equal ground connection of address pin of memory 51, its address is 000, the address pin A1 of memory 52, A2 ground connection, address pin A0 meets power supply VCC, and its address is 001, so analogizes.Due to first group of memory 51,52 ... each storage address in 58 is all not identical, and controller 50 can be accessed each memory by its address.
Second group of memory comprises 8 memories 61,62 ... 68, each memory 61,62 ... 68 clock pin SCL is connected to bus A, and data pin SDA is connected to bus B.And each memory also is provided with three address pin A0, A1, A2, and each memory 61,62 ... 68 have the address of oneself, are 000 as the address of memory 61, and the address of memory 62 is 001.
First group of memory 51,52 ... each memory of 58 all with second group of memory 61,62 ... a memory correspondence in 68, and two corresponding memories have identical address, for example, 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 need to carry out communication with first group of memory, send data-signal to bus A, and to bus B tranmitting data register signal.During due to controller 50 and memory communication, at first send commencing signal, as can be seen from Figure 5, when sending commencing signal start, clock signal is not identical with the level of data-signal, therefore memory can be according to the level signal of bus A and bus B, and what judgement bus A sent is clock signal or data-signal.What only have that judgement clock pin SCL receives is clock signal, and data pin SDA receives is data-signal, and memory could startup work.
Therefore, what first group of memory judgement clock pin SCL received is clock signal, and data pin receive SDA be data-signal after, with controller 50 communications.At this moment, what second group of memory received due to clock pin SCL is data-signal, is clock signal and data pin SDA receives, does not therefore work.
If controller 50 needs second group of memory 61 of access, 62 ... any in 68 to bus A tranmitting data register signal, and sends data-signal to bus B, this moment second group of memory operation, and first group of memory do not worked.As seen, controller 50 can be selected to carry out communication with first group of memory or second group of memory by loading different signals to bus A from bus B.And because each group memory all can arrange 8 maximum memories, so controller 50 can access at most 16 memories, can greatly expand like this 24C amount of memory that consumable container that imaging device arranges arranges.
If the consumable container quantity that imaging device arranges is more than 8, perhaps the amount of memory of all consumable container chips of imaging device more than 8, can be used the deficiency that the solution of the present invention solves existing issue, satisfies 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 be provided with cavity in casing, be provided with a plurality of handle boxes in cavity, each handle box has a housing, housing surrounds a cavity that holds carbon dust, and an end of handle box cavity is provided with meal outlet.And, on an outer wall of handle box housing, chip piece being installed removably, chip is provided with electronic module, is provided with memory in electronic module.Identical in the connected mode of controller and a plurality of memories and ink-jet printer repeats no more.
The present invention singly can not be applied in imaging device, can also be applied in other field of storage, as as common data storage device, it arranges a plurality of memories, and arrange one for the controller that a plurality of memories are controlled, being connected between controller and memory is as described in ink-jet printer embodiment, its method of work and similar.This storage device can be applied in various electronic such as mobile phone, MP3.In addition, if need on single consumable chip to arrange more than 8 24C memories, data storage device also can be applied in an electronic module, and this electronic module has controller and more than the 24C memory of 8, its connected mode as previously mentioned.
It is emphasized that at last to the invention is not restricted to above-mentioned embodiment, the change of the amount of memory that connects as the data storage controller, the variations such as change of data storage device application also should be included in the protection domain of claim of the present invention.
Claims (9)
1. data storage device, comprise
Controller, described controller are connected with the first bus and the second bus and to described the first bus and described the second bus transmitted signal;
First group of memory, the clock pin of each memory in described first group of memory is connected to described the first bus, and the data pin of each memory in described first group of memory is connected to described the second bus;
It is characterized in that:
Second group of memory, the clock pin of each memory in described second group of memory is connected to described the second bus, and the data pin of each memory in described second group of memory is connected to described the first bus.
2. data storage device according to claim 1 is characterized in that:
Each memory in described first group of memory and described second group of memory is the 24C memory.
3. data storage device according to claim 1 and 2 is characterized in that:
Each memory in described first group of memory is corresponding one by one with each memory in described second group of memory, and in each memory in described first group of memory and described second group of memory, corresponding memory has identical address.
4. the data access method of data storage device, described data storage device has controller and first group of memory, described controller is connected with the first bus and the second bus, the clock pin of each memory in described first group of memory is connected to described the first bus, and the data pin of each memory in described first group of memory is connected to described the second bus;
It is characterized in that:
Described data storage device also is provided with second group of memory, and the clock pin of each memory in described second group of memory is connected to described the second bus, and the data pin of each memory in described second group of memory is connected to described the first bus;
The method comprises
During the described first group of memory of described controller access, to described the first bus tranmitting data register signal, and send data-signal to described the second bus;
During the described second group of memory of described controller access, send data-signal to described the first bus, and to described the 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 first group of memory and described second group of memory is the 24C memory.
6. the data access method of according to claim 4 or 5 described data storage devices is characterized in that:
Each memory in described first group of memory is corresponding one by one with each memory in described second group of memory, and in each memory in described first group of memory and described second group of memory, corresponding memory has identical address.
7. imaging device, comprise
Casing is provided with the cavity that consumable container is installed, and is provided with movement in casing in described casing, described movement has controller, and described controller is with the first bus and reach that the second bus is connected and to described the first bus and described the second bus transmitted signal;
On described consumable container, chip is installed, each described chip is provided with memory;
It is characterized in that:
All memories that are arranged on all chips are divided into two groups, the clock pin of each memory in first group of memory is connected to described the first bus, the data pin of each memory in described first group of memory is connected to described the second bus, the clock pin of each memory in second group of memory is connected to described the second bus, and the data pin of each memory in described second group of memory is connected to described the first bus.
8. imaging device according to claim 7 is characterized in that:
Each memory in described first group of memory and described second group of memory is the 24C memory.
9. according to claim 7 or 8 described imaging devices is characterized in that:
Each memory in described first group of memory is corresponding one by one with each memory in described second group of memory, and in each memory in described first group of memory and described second group of memory, corresponding memory has identical address.
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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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| US11370223B2 (en) | 2017-01-31 | 2022-06-28 | Hewlett-Packard Development Company, L.P. | Accessing memory units in a memory bank |
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