Data accessing method and electronic apparatus utilizing the data accessing method

1. A data access method applicable on an electronic apparatus comprising a first storage apparatus and a second storage apparatus, the method comprising:

storing a first part of data and a second part of data of an image frame in the first storage apparatus and the second storage apparatus, respectively, wherein the first storage apparatus comprises static random access memory and the second storage apparatus comprises a stand alone memory device with different characteristics compared to the static random access memory;

selectively accessing the first storage apparatus and the second storage apparatus via different data access paths for the first part of data and the second part of data;

classifying portions of the image frame to the first part of data and the second part of data in an alternative fashion before the storing step; and

the accessing step comprising accessing the first storage apparatus and the second storage apparatus in an alternative fashion,

wherein access speed to the first storage apparatus is different from access speed to the second storage apparatus.

2. The data access method of claim 1 , wherein the electronic apparatus further comprises at least one internal circuit, the first storage apparatus and the at least one internal circuit is integrated in a chip, the second storage apparatus is coupled to the electronic apparatus via an interface, and the second storage apparatus is removable from the interface.

3. The data access method of claim 1 , wherein the image frame further comprises a third part of data, the second part of data is concatenated to the first part of data, and the third part of data is concatenated to the second part of data, the storing step comprising storing the first part of data and the third part of data in one of the first and the second storage apparatus and storing the second part of data in the other one of the first and the second storage apparatus; and

the accessing step comprising sequentially accessing the first part of data, the second part of data, and the third part of data.

4. The data access method of claim 1 , the storing step comprising storing a plurality of odd pixel rows of the image frame in one of the first and the second storage apparatus and storing a plurality of even pixel rows of the image frame in another one of the first and the second storage apparatus; and

the accessing step comprising sequentially accessing the pixel rows of the image frame.

5. An electronic apparatus, comprising:

a first storage apparatus;

a second storage apparatus, wherein an access speed to the first storage apparatus is higher than an access speed to the second storage apparatus, wherein the first storage apparatus comprises static random access memory and the second storage apparatus comprises a stand alone memory device with different characteristics compared to the static random access memory; and

a control unit, configured to access the first storage apparatus and the second storage apparatus via different data paths,

wherein the control unit is further configured to store a first part of data and a second part of data of an image frame in the first storage apparatus and the second storage apparatus, respectively, and to selectively access the first storage apparatus and the second storage apparatus via different data paths for the first part of data and the second part of data, and

wherein portions of the image frame are classified to the first part of data and the second part of data in alternative fashion, and the electronic apparatus accesses the first storage apparatus and the second storage apparatus in alternative fashion.

6. The electronic apparatus of claim 5 , wherein the electronic apparatus further comprises at least one internal circuit, the first storage apparatus and the at least one internal circuit is integrated in a chip, the second storage apparatus is coupled to the electronic apparatus via an interface, and the second storage apparatus is removable from the interface.

7. The electronic apparatus of claim 5 , wherein the image frame further comprises a third part of data, the second part of data is concatenated to the first part of data, and the third part of data is concatenated to the second part of data, wherein the control unit is further configured to store the first part of data and the third part of data in one of the first and the second storage apparatus, store the second part of data in another one of the first and the second storage apparatus, and sequentially access the first part of data, the second part of data, and the third part of data.

8. The electronic apparatus of claim 5 , wherein the control unit is further configured to store a plurality of odd pixel rows of the image frame in one of the first and the second storage apparatus, store a plurality of even pixel rows of the image frame in another one of the first and the second storage apparatus, and sequentially access the pixel rows of the image frame.