Data processing device, data driving device, and system for driving display device
The present disclosure relates to a data driving device, a data processing device, and a system for driving a display device and, more particularly, it relates to a data driving device, a data processing device, and a system for smoothly performing a low-speed communication through a communication line including an alternating current coupling capacitor.
1. A method for transmitting data by a first integrated circuit, the method comprising:
transmitting a preamble signal encoded using a direct current (DC) balance code, at a first transmission rate, to a second integrated circuit;
after transmitting the preamble signal, transmitting a configuration data signal encoded using the DC balance code, at the first transmission rate, to transmit data at a second transmission rate higher than the first transmission rate; and
transmitting the data at the second transmission rate, wherein
transmitting the preamble signal comprises transmitting at least one of a first data bit corresponding to a binary numeral “1” and a second data bit corresponding to a binary numeral “0” regularly.
2. The method of claim 1 , wherein the preamble signal is transmitted through a differential communication line comprising a plurality of communication lines.
3. The method of claim 2 , wherein the differential communication line comprises at least one alternating current (AC) coupling capacitor.
4. The method of claim 1 , wherein the DC balance code comprises a Manchester code.
5. The method of claim 1 , wherein the DC balance code comprises an 8B10B code.
6. The method of claim 1 , wherein the configuration data signal comprises configuration data used for setting up a communication environment for receiving the data transmitted by the first integrated circuit at the second transmission rate.
7. The method of claim 6 , wherein the configuration data signal further comprises header data corresponding to information related to the configuration data.
8. The method of claim 6 , wherein the configuration data signal further comprises checksum data.
9. The method of claim 6 , wherein the configuration data signal further comprises a start bit disposed before the configuration data.
10. The method of claim 6 , wherein the configuration data signal further comprises an end bit disposed after the configuration data.
11. A method for receiving and identifying data transmitted from a first integrated circuit, in a second integrated circuit, the method comprising:
receiving a preamble signal transmitted from the first integrated circuit at a first transmission rate, the preamble signal being encoded using a direct current (DC) balance code;
after receiving the preamble signal, receiving a configuration data signal transmitted from the first integrated circuit at the first transmission rate, the configuration data signal being encoded using the DC balance code;
receiving data transmitted from the first integrated circuit at a second transmission rate higher than the first transmission rate; and
identifying the data based on the configuration data signal, wherein
receiving the preamble signal comprises receiving at least one of a first data bit corresponding to a binary numeral “1” and a second data bit corresponding to a binary numeral “0” regularly.
12. The method of claim 11 , wherein the preamble signal is received through a differential communication line comprising a plurality of communication lines.
13. The method of claim 12 , wherein the differential communication line comprises at least one alternating current (AC) coupling capacitor.
14. The method of claim 11 , wherein the DC balance code comprises a Manchester code.
15. The method of claim 11 , wherein the DC balance code comprises an 8B10B code.
16. The method of claim 11 , wherein the configuration data signal comprises configuration data used for setting up a communication environment for receiving the data transmitted by the first integrated circuit at the second transmission rate.
17. The method of claim 16 , wherein the configuration data signal further comprises header data corresponding to information related to the configuration data.
18. The method of claim 16 , wherein the configuration data signal further comprises checksum data.
19. The method of claim 16 , wherein the configuration data signal further comprises a start bit disposed before the configuration data.
20. The method of claim 16 , wherein the configuration data signal further comprises an end bit disposed after the configuration data.