Serial interfaces conversion method

Authors: Zakernichny I.V.
Published in issue: #4(93)/2024
DOI:
Category: Instrument Engineering, Metrology, Information-Measuring Instruments and Systems | Chapter: Solid-state electronics, radioelectronic components, micro - and nanoelectronics
Keywords: serial interface, interface conversion, PS/2 interface, microcontroller, keyboard, debug board, program algorithm, oscillogram
Published: 26.09.2024

The paper considers methodology for reducing delays in the serial interface converters by starting the conversion process before receiving the entire data word, i.e. by using the predictive conversion. Relevance of the issue is due to the growing requirements for the interface speed and delays in modern systems and the need to use the outdated peripheral devices equipped with significantly less productive interfaces in operation with them. The work objective is to find a way to reduce delays in the serial interface conversion. The methodology includes analysis of existing serial interface converters and methods used in them to reduce the delays. As a result, a predictive (anticipatory) converter was developed, which was used in a specific device. The paper provides its operation algorithm; oscillograms of the input and output signals are obtained.

References

[1] Ersh S.A. Converter of serial interfaces to Ethernet. Computer-aided design and technology of production of electronic systems. 52nd Scientific. conf. of postgraduates, masters and students of BSUIR: collection of materials. Minsk, Belarusian State University of Informatics and Radioelectronics Publ., 2016, 21 p. (In Russ.).

[2] Zhou Houming. Serial port Ethernet protocol conversion method. Patent no. CN 103078871 A, 2013.

[3] Koryukin S. Converter of I2C interfaces to UART based on microcontroller uPD78F9222 from NEC. Components and Technologies, 2006, no. 63, pp. 58–61. (In Russ.). EDN MTFIVJ

[4] Patron E., Pinto C., Poot R. et al. Design and implementation of a serial-USB converter. IJCSNS International Journal of Computer Science and Network Security, 2011, vol. 11, no. 6, pp. 69–76.

[5] Kiselev E.F. Serial-to-Parallel Converter. Patent No. RU 2001128037 A, 2003. (In Russ.).

[6] Sharma M., Puneet M., Pravin F., Preet J. Serial Communication Protocol Conversion and Circular Buffer Implementation in FPGA using Verilog. OSR Journal of Electronics and Communication Engineering (IOSR-JECE), 2015, vol. 10, iss. 2, ver. IV, pp. 1–10. https://doi.org/10.9790/2834-10240110

[7] ya Meiki PC-98 Imada Gen'eki. URL: https://www.asahi.com/articles/ASN7F5K3SN7DUEHF118.html (accessed November 10, 2023).

[8] ATmega328P 8-bit AVR Microcontroller with 32K Bytes in-System Programmable Flash Datasheet. Atmel Corporation, 2015, 294 p.

[9] IBM Personal System/2 Hardware Interface Technical Reference. Common Interfaces. Technical reference, IBM Corporation, 1990, 54 p.

[10] Kaichoban PC-9800 Shirizu Tekunikarudetabukku Hardware-Hen: Technical data book. NEC Corporation, 1993, pp. 139–155, 343–346.