CN101287223A - Mobile terminal with function of television and communication method between modules - Google Patents
Mobile terminal with function of television and communication method between modules Download PDFInfo
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- CN101287223A CN101287223A CNA2008101113251A CN200810111325A CN101287223A CN 101287223 A CN101287223 A CN 101287223A CN A2008101113251 A CNA2008101113251 A CN A2008101113251A CN 200810111325 A CN200810111325 A CN 200810111325A CN 101287223 A CN101287223 A CN 101287223A
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Abstract
The invention discloses a mobile terminal with TV functions and a method of communication between modules of the mobile terminal, wherein, the terminal comprises a mobile phone functional module (1), a TV functional module (2) as well as an RAM (3) (random access memory); the method includes that: a module writes data to be transmitted into a data transmission buffer corresponding to the module in the RAM and informs another module of receiving the data; another module after receiving the notice reads the data from the RAM. The terminal and the method have simple circuits, reliable communication and high communication speed; in addition, each module can work normally with auxiliary slow clock with low frequency, thereby being beneficial for reducing standby current of the mobile terminal and prolonging the standby time.
Description
Technical field
The present invention relates to mobile communication terminal, be specifically related to a kind of portable terminal with TV function and the method for intermodule communication thereof.
Background technology
Along with the development of technology and people requirements at the higher level to quality of life, mobile phone is more and more obvious as a kind of trend of amusement type communicating terminal, wherein, mobile phone more and more is subjected to people's favor as a kind of radiovisor to realize the functional requirement of TV reception whenever and wherever possible simultaneously.At present, each big operator has more and more paid attention to the TV functions of mobile phone, and the mobile phone terminal that has TV functions also begins to develop thereupon.
Generally speaking, the base band of the TV-set receiving module in the mobile phone and radio frequency part, be called the TV functions module, base band and radio-frequency module with mobile phone, be called the cell-phone function module, be two independent parts, real-time information interaction can take place in this two parts intermodule, as the operating state of confirming the other side and for the preemption information of physical hardware resources etc.This information interaction mode commonly used now is to pass through serial ports, promptly adopt UART Universal Asynchronous Receiver Transmitter Universal Asynchronous Receiver Transmitter, being called for short UART realizes, and usually by auxiliary universal input/output interface General PurposeInput/Output, abbreviation GPIO interface or analog switch cooperate with serial ports to be finished, to improve the efficient of serial communication.Thisly realize that by serial ports the mode circuit of information interaction is fairly simple, but have following shortcoming: (1) UART mouth is because the restriction of self hardware condition, and its traffic rate is lower, is generally 115200bit/s; (2) because the clock of the Baud rate generator of UART derives from the main work clock of baseband controller, frequency is higher, therefore when the UART mouth has exchanges data, baseband controller must be with the very high master clock work of frequency, cause the standby current of terminal bigger like this, make the stand-by time of terminal shorten.
Summary of the invention
The technical issues that need to address of the present invention provide a kind of portable terminal with TV function and the method for intermodule communication thereof, by this terminal and method, can guarantee the accuracy and the reliability of intermodule transmission data, can improve traffic rate again, the reliability and the function that also do not influence system simultaneously realize.
Above-mentioned first technical problem of the present invention solves like this, a kind of portable terminal with TV function is provided, comprise cell-phone function module and TV functions module, also comprise external bus interface External Bus Interface with described cell-phone function module, TV functions module, be called for short EBI, connect, allow described cell-phone function module and TV functions module to carry out the random access memory Random-access Memory of reading and writing data manipulation simultaneously, be called for short RAM.
According to portable terminal provided by the invention, described random access memory is twoport or many mouthfuls of random access memory, and its quantity is one or more.
According to portable terminal provided by the invention, described random access memory is that two groups independently parallel data, address and control bus are connected with the external bus interface of described cell-phone function module, TV functions module respectively in employing.
According to portable terminal provided by the invention, be provided with in described random access memory respectively between two buffering areas corresponding with described cell-phone function module, TV functions module: the cell-phone function module sends the data buffer zone and the TV functions module sends the data buffer zone.
According to portable terminal provided by the invention, the transmission request signal of described cell-phone function module links to each other with the accepting state detection signal of described TV functions module, the transmission request signal of described TV functions module links to each other with the accepting state detection signal of described cell-phone function module, wherein sending request signal is output attribute, and the accepting state detection signal is an input attributes.
Above-mentioned another technical problem of the present invention solves like this, and the method for intermodule communication in a kind of portable terminal with TV function is provided, and may further comprise the steps:
6.1) module will need to send in cell-phone function module and the TV functions module data write random access memory, notify another module to receive data then;
6.2) after described another module receives the notice of described reception data, reading of data from random access memory.
According to intermodule communication method provided by the invention, described random access memory is twoport or many mouthfuls of random access memory, is provided with respectively corresponding with transmit leg module, recipient's module two and sends data buffer zones in its memory space.
According to intermodule communication method provided by the invention, in described step 6.1) in, when a described module need send data to another module, be the transmission data buffer zone that the data that will send write this module correspondence in the described random access memory; In described step 6.2) in, described another module is a reading of data from this transmission data buffer zone.
According to intermodule communication method provided by the invention, in described step 6.1) in, a described module is notified another module to receive data and is meant: the transmission request signal that changes this module; In described step 6.2) in, a described module receives that the notice of another module reception data is meant: the transmission request signal that the accepting state detection signal of this module detects another module changes.
According to intermodule communication method provided by the invention, when cell-phone function module in the portable terminal that has TV functions when the TV functions module sends data, this method specifically may further comprise the steps:
A1, cell-phone function module send to data with needs and write in the transmission data buffer zone of cell-phone function module correspondence in the random access memory, and change the transmission request signal of cell-phone function module;
After the transmission request signal that the accepting state detection signal of A2, TV functions module detects the cell-phone function module changes, reading of data in the transmission data buffer zone of cell-phone function module correspondence from random access memory.
According to intermodule communication method provided by the invention, when TV functions module in the portable terminal that has TV functions when the cell-phone function module sends data, this method specifically may further comprise the steps:
B1, TV functions module send to data with needs and write in the transmission data buffer zone of TV functions module correspondence in the random access memory, and change the transmission request signal of TV functions module;
After the transmission request signal that the accepting state detection signal of B2, cell-phone function module detects the TV functions module changes, reading of data in the transmission data buffer zone of TV functions module correspondence from random access memory;
A kind of portable terminal with TV function provided by the invention and the method for intermodule communication thereof, circuit is simple, and the communication process realization is simple, reliable, speed is high; Further, the baseband controller of each module is operated in high-frequency master clock or the low auxiliary slow clock of frequency during communication, can both proper communication, thereby reduced the standby current of portable terminal relatively, prolonged stand-by time.
Description of drawings
Further the present invention is described in detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the concrete enforcement block diagram of the present invention's portable terminal with TV function.
Fig. 2 is the schematic flow sheet of intermodule communication method in the present invention's portable terminal with TV function.
Embodiment
Core concept of the present invention is to increase at least one can allow many mouthfuls of RAM of two modules reading and writing simultaneously data between cell-phone function module and TV functions module, thereby realizes the transfer of data between the module.Usually, described many mouthfuls of RAM can but be not limited to adopt dual port random access memory Dual Port RAM, as long as can satisfy two modules while reading and writing data.
Be example to adopt dual port RAM below, specifically set forth the communication means of cell-phone function module and two intermodules of TV functions module in the portable terminal that has a TV functions provided by the present invention and this terminal.
A kind of portable terminal that has TV functions as shown in Figure 1, comprising: cell-phone function module 1, TV functions module 2 and a dual port random access memory RAM 3.
The accepting state detection signal T_ST of the transmission request signal M_IRQ of cell-phone function module 1 and TV functions module 2 connects together, and wherein M_IRQ is an output attribute, and T_ST is an input attributes; The accepting state detection signal M_ST of the transmission request signal T_IRQ of TV functions module 2 and cell-phone function module 1 connects together, and wherein T_IRQ is an output attribute, and M_ST is an input attributes.
Dual port RAM has two groups of independently parallel data, address and control buss, is respectively A group interface bus and B group interface bus.A group interface bus specifically comprises data/address bus DB_A, address bus AB_A and control bus CB_A; B group interface bus specifically comprises data/address bus DB_B, address bus AB_B and control bus CB_B.The A group data of described dual port RAM, address and external bus interface EBI corresponding link to each other of control bus with cell-phone function module 1; B group data, address and external bus interface EB I corresponding link to each other of control bus with TV functions module 2.The memory space of dual port RAM can but be not limited to be divided between two buffering areas: the cell-phone function module sends the interval and TV functions module transmission data buffering interval of data buffering, corresponding with two modules respectively, one is cell-phone function module transmission data buffering interval, and another is that the TV functions module sends the data buffering interval.
Described cell-phone function module 1 is used for will sending to data and writes in the described dual port RAM cell-phone function module transmission data buffer zone when sending data to TV functions module 2, and notice TV functions module 2 receives data; Also be used to receive the notice of the reception data that TV functions module 2 sends, and receiving described notice back reading of data in the TV functions module 2 transmission data buffer zones from described dual port RAM.
Described TV functions module 2 is used for will sending to data and writes in the described dual port RAM TV functions module 2 transmission data buffer zones when sending data to cell-phone function module 1, and notice cell-phone function module 1 receives data; Also be used to receive the notice of the reception data that cell-phone function module 1 sends, and receiving described notice back reading of data in the cell-phone function module 1 transmission data buffer zone from described dual port RAM.
Described TV functions module 2, cell-phone function module 1 are notified another module to receive data and are meant: the transmission request signal that changes this module.
Described cell-phone function module 1, TV functions module 2 receive that the notice of the reception data that another module sends is meant: the transmission request signal that the accepting state detection signal of this module detects another module changes.
The present invention also provides the method for intermodule communication in the described portable terminal that has a TV functions, and its flow process may further comprise the steps as shown in Figure 2:
Step 101: the data that module will need to send in cell-phone function module 1 and the TV functions module 2 write RAM, notify another module to receive data then;
Step 102: after described another module is received the notice that receives data, reading of data from RAM.
When cell-phone function module 1 will be when TV functions module 2 sends data, at first the cell-phone function module 1, and promptly the transmit leg module sends to data with needs and is written in the RAM, notifies TV functions module 2 then, and promptly recipient's module receives data.If among the RAM memory space is divided into the transmission data buffer zone of cell-phone function module and TV functions module, the cell-phone function module that then data is sent to RAM sends in the data buffer zone, notice TV functions module 2 receive data method can but be not limited to make M_IRQ to become " 1 " by " 0 ", produce a rising edge and send to TV functions module 2, process of transmitting finishes.
When TV functions module 2 receives the data that cell-phone function modules 1 send, for example, when the T_ST input when the rising edge generation is arranged, TV functions module 2 promptly responds interruption, reads corresponding data from RAM; If transmit leg is data to be sent to described cell-phone function module send in the data buffer zone, then in this buffering area, read corresponding data, receiving course finishes.
Same, when TV functions module 2 will be when cell-phone function module 1 sends data, at first the TV functions module 2, to be the transmit leg module send to data with needs is written to TV functions module 2 and sends in the data buffer zones, make T_IRQ become " 1 " then, produce a rising edge, notice cell-phone function module 1 by " 0 ", be that recipient's module receives data, process of transmitting finishes.
When cell-phone function module 1 receives the data that TV functions module 2 sends, when the M_ST input when having rising edge to take place, cell-phone function module 1 promptly respond interruptions, reading of data from TV functions module 2 transmission data buffer zones, receiving course end.
In actual applications, be not limited to notify another module to receive data with the mode that produces rising edge, also can be with trailing edge or other signal variation patterns, and be not limited to RAM only be divided into the cell-phone function module, the TV functions module sends the data buffer zone.
Above scheme has the following advantages:
1) circuit is simple.Only need in portable terminal, add a dual port RAM device, and its two groups of parallel datas, address and control buss are linked to each other with external bus interface EBI that portable terminal weighs two modules respectively get final product; And each module only needs 2 control signals.
2) the communication process realization is simple, reliable, speed is high.Propose the transmission request by the sending direction recipient, and write data in the dual port RAM, the recipient gets final product from the dual port RAM reading of data subsequently; And when the recipient read first data, transmit leg can be write second batch data simultaneously; When perhaps the recipient reads first data, can be simultaneously write oneself in the RAM and will send to data, so improved traffic rate.
3) reduce standby current, prolongs standby time.Because based on the dual-mode terminal communication method of dual port RAM mode, when communication, the baseband controller that does not rely on each module is operated in still slow clock of master clock (frequency height), therefore when slow clock, also can proper communication.With respect to using the UART communication mode, reduced standby current like this.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1, a kind of portable terminal with TV function, comprise cell-phone function module (1) and TV functions module (2), it is characterized in that, also comprise with the external bus interface of described cell-phone function module (1), TV functions module (2) being connected, allow described cell-phone function module (1) and TV functions module (2) to carry out the random access memory (3) of reading and writing data manipulation simultaneously.
According to the described portable terminal of claim 1, it is characterized in that 2, described random access memory (3) is twoport or many mouthfuls of random access memory, its quantity is one or more.
3, according to the described portable terminal of claim 1, it is characterized in that described random access memory (3) is that two groups independently parallel data, address and control bus are connected with the external bus interface of described cell-phone function module (1), TV functions module (2) respectively in employing.
4, according to claim 2 or 3 described portable terminals, it is characterized in that be provided with respectively between two buffering areas corresponding with described cell-phone function module (1), TV functions module (2): cell-phone function module (1) sends the data buffer zone and TV functions module (2) sends the data buffer zone in described random access memory (3).
5, according to the described portable terminal of claim 1, it is characterized in that, the transmission request signal of described cell-phone function module (1) links to each other with the accepting state detection signal of described TV functions module (2), the transmission request signal of described TV functions module (2) links to each other with the accepting state detection signal of described cell-phone function module (1), wherein sending request signal is output attribute, and the accepting state detection signal is an input attributes.
6, the method for intermodule communication in a kind of portable terminal with TV function is characterized in that, may further comprise the steps:
6.1) module will need to send in cell-phone function module (1) and the TV functions module (2) data write random access memory (3), notify another module to receive data then.
6.2) after described another module receives the notice of described reception data, reading of data from random access memory (3).
7, according to the described intermodule communication method of claim 6, it is characterized in that, described random access memory (3) is twoport or many mouthfuls of random access memory (3), is provided with respectively corresponding with cell-phone function module (1), TV functions module (2) two and sends data buffer zones in its memory space.
8, according to the described intermodule communication method of claim 6, it is characterized in that, in described step 6.1) in, when a described module need send data to another module, be the transmission data buffer zone that the data that will send write this module correspondence in the described random access memory (3); In described step 6.2) in, described another module is a reading of data from this transmission data buffer zone.
9, according to the described intermodule communication method of claim 6, it is characterized in that, in described step 6.1) in, a described module is notified another module to receive data and is meant: the transmission request signal that changes this module; In described step 6.2) in, a described module receives that the notice of another module reception data is meant: the transmission request signal that the accepting state detection signal of this module detects another module changes.
10, according to the described intermodule communication method of claim 6, it is characterized in that, when cell-phone function module (1) when TV functions module (2) sends data, this method specifically may further comprise the steps:
A1, cell-phone function module (1) send to data with needs and write in the transmission data buffer zone of cell-phone function module (1) correspondence in the random access memory (3), and change the transmission request signal of cell-phone function module (1);
After the transmission request signal that the accepting state detection signal of A2, TV functions module (2) detects cell-phone function module (1) changes, reading of data in the corresponding transmission data buffer zone of cell-phone function module (1) from random access memory (3);
When TV functions module (2) when cell-phone function module (1) sends data, this method specifically may further comprise the steps:
B1, TV functions module (2) send to data with needs and write in the transmission data buffer zone of TV functions module (2) correspondence in the random access memory (3), and change the transmission request signal of TV functions module (2);
After the transmission request signal that the accepting state detection signal of B2, cell-phone function module (1) detects TV functions module (2) changes, reading of data in the corresponding transmission data buffer zone of TV functions module (2) from random access memory (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101113251A CN101287223A (en) | 2008-05-27 | 2008-05-27 | Mobile terminal with function of television and communication method between modules |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008101113251A CN101287223A (en) | 2008-05-27 | 2008-05-27 | Mobile terminal with function of television and communication method between modules |
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| CN101287223A true CN101287223A (en) | 2008-10-15 |
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| CNA2008101113251A Pending CN101287223A (en) | 2008-05-27 | 2008-05-27 | Mobile terminal with function of television and communication method between modules |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010148881A1 (en) * | 2009-12-29 | 2010-12-29 | 中兴通讯股份有限公司 | Mobile phone and method for reducing power consumption of mobile phone television |
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- 2008-05-27 CN CNA2008101113251A patent/CN101287223A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010148881A1 (en) * | 2009-12-29 | 2010-12-29 | 中兴通讯股份有限公司 | Mobile phone and method for reducing power consumption of mobile phone television |
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Application publication date: 20081015 |