Pioneer RS-232C guide

DVD-V5000 DVD Player

RS-232 Command Protocol

Example:

Segment Play Command : Title 02, from Frame 3600 to Frame 4800 > 4020036000048007

BP	Data	Explanations
1216 + BARCODE_SRP #n	a4H
+ 1	a0H
+ 2	a2H
+ 3	a0H
+ 4	a0H
+ 5	a3H
+ 6	a6H
+ 7	a0H
+ 8	a0H
+ 9	a0H
+ 10	a0H
+ 11	a4H
+ 12	a8H
+ 13	a0H
+ 14	a0H
+ 15	a7H

*BARCODE_SRP #n : Barcode #n Search Pointer

Outline of Barcode Command : Barcode Command has these formats as follows. DVD 4 digits command (sets the player, the video and the audio control) DVD 6 digits command (sets the attribute control)

DVD 10 digits command (Chapter Search Command) DVD 12-digit command (Chapter Segment Play) DVD 14-digit command (Frame Search)

DVD 16-digit command (Segment Play)

The following four command functions in Command Stack are not regulated in Barcode Format. These commands are regulated as follows.

1)	End of Group mark:	The first byte is (ffH), the others are (00H)
2)	REPEAT:	(49a3H)
3)	WAIT:	(4bxxxxH)
4)	GOTO:	(4axxxxH)

*Refer to the Barcode Format

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RS-232C specifications

The Pioneer RS-232C is a significant component in the realm of communication technology, especially known for its application in serial communications. Initially introduced in the 1960s as part of the EIA-232 standard, RS-232C has evolved through various iterations to become a foundational interface for connecting data communication equipment (DCE) with data terminal equipment (DTE). This article outlines its main features, technologies, and characteristics.

One of the hallmark features of RS-232C is its ability to facilitate point-to-point communication. It allows for a direct link between two devices, making it suitable for a variety of applications, including modems, printers, computers, and other peripherals. The RS-232C interface typically uses a 25-pin connector, although a 9-pin variant is also common in many modern devices. This interface is based on serial communications, where bits are sent sequentially over a single channel, leveraging fewer wires compared to parallel communication methods.

In terms of technology, RS-232C operates primarily at voltage levels of +12V to -12V, which provide the necessary signaling for data transmission. The standard supports baud rates ranging from 300 to 115200 bps, accommodating various data transfer speeds depending on the needs of the hardware involved. RS-232C defines various electrical characteristics and timing requirements, ensuring robust performance over relatively short distances, typically up to 15 meters, depending on the baud rate.

Another essential aspect of the RS-232C standard is its use of asynchronous communication, allowing devices to transmit data without having to synchronize their clocks. Each data packet typically consists of a start bit, a predefined number of data bits (usually 7 or 8), an optional parity bit for error-checking, and one or more stop bits. This method allows for error detection and ensures data integrity during transmission.

Despite its age, the RS-232C interface remains relevant, especially in industrial applications, instrumentation, and legacy systems. Its simplicity, low cost, and widespread acceptance make it a versatile choice for connecting various devices, even in a world increasingly dominated by USB and other modern interfaces.

In conclusion, the Pioneer RS-232C is a remarkable testament to the enduring nature of serial communication technology. Its straightforward design, reliability, and ease of integration continue to make it a staple in numerous applications, underscoring its significance in the landscape of data communication.

Pioneer RS-232C manual Example Segment Play Command Title 02, from Frame 3600 to Frame 4800

Models: RS-232C

Example:

RS-232C specifications