ISO/IEC 11458:1993/Amd 1:2000

Overview

ISO/IEC 11458:1993/Amd 1:2000 is an international standard amendment focused on information technology microprocessor systems, specifically addressing the VICbus inter-crate cable bus. This amendment updates key technical details related to the VICbus connector pin assignments, ensuring improved interoperability and system integration for microprocessor-based systems utilizing this bus architecture. Developed by ISO/IEC Joint Technical Committee 1 (JTC 1) Subcommittee 26 on microprocessor systems, this revision aligns VICbus technology with modern standardization requirements.

Key Topics

• VICbus Architecture: The amendment refines the inter-crate cable bus design, which supports communication between microprocessor system crates over VICbus.
• Connector Pin Assignments: Updates address the specific pin configurations for VICbus connectors VC2-i, VC2-O, VCl -i, and VCl -O, critical for hardware compatibility.
• Signal Line Definitions: The document provides detailed assignments for signal lines including lines for data (ADxx), interrupts (INTxx), wait signals (WAIT+/-), and reset controls (VICRESET+/-).
• Enhanced Interoperability: By standardizing the cabling and bus connectors, the amendment promotes reliable communication across diverse microprocessor systems and crates.
• Technical Revision: The new pin assignment table replaces the original, serving as a reference for engineers and developers working with VICbus hardware.

Applications

• Microprocessor System Integration: Ensures seamless interconnection of microprocessor crates in complex computing environments, minimizing hardware design errors.
• Industrial Automation: Supports robust communication networks in automated systems requiring microprocessor control units connected via VICbus.
• Embedded Systems: Facilitates development of embedded technologies where multiple processing units communicate efficiently over standardized VICbus cabling.
• Hardware Design and Testing: Engineers use this standard for design validation and troubleshooting of VICbus hardware interfaces across varied applications.
• Retrofit and Maintenance: The amendment provides updated specifications that assist in maintaining legacy VICbus systems while improving compatibility with newer peripherals.

Related Standards

• ISO/IEC 11458:1993 - The original standard establishing the VICbus microprocessor system bus architecture.
• ISO/IEC JTC 1 Standards - Related international standards on microprocessor systems and information technology interfaces.
• IEC 60603 Series - Connectors for electronic equipment, complementing hardware aspects of VICbus.
• IEEE 1101.11 - Standard for mechanical and electrical specifications for crate cabling supporting interconnect systems similar to VICbus.

This amendment to ISO/IEC 11458 reinforces the technical foundation and practical implementation of VICbus inter-crate cable buses, making it essential for microprocessor system designers, integrators, and technical professionals engaged with VICbus communication standards. Staying compliant with these updated pin assignments and connector specifications ensures effective, reliable system communication and long-term technology viability.