Motorola AP-4 01-W3394F-03G Processor Module

General Description

The AP-4 series from Motorola (now part of Emerson Network Power) represents a range of high-performance VMEbus processor modules built around PowerPC microprocessors. The 01-W3394F-03G variant features a PowerPC 750 processor (or similar) operating at 400-600 MHz, with integrated memory controllers and I/O subsystems. It is designed for real-time applications requiring deterministic performance and long-term availability.

Key Features

• Processor: PowerPC 750 (G3) or 7400 (G4), 400-600 MHz, with 256 KB L2 cache.

• Memory: 128 MB SDRAM (expandable to 512 MB), 32 MB Flash for boot firmware.

• VMEbus Interface: VME64x, supports master/slave operation, A32/A24 addressing, D32/D16/D08 data transfer.

• I/O Ports: 2x Ethernet (10/100 Base-T), 2x RS232, 2x USB 1.1, IDE interface.

• Expansion: PMC (PCI Mezzanine Card) slot for additional I/O or communication modules.

• Real-Time Clock: Battery-backed, with calendar.

• Operating System Support: VxWorks, Linux, QNX, and other real-time operating systems.

• Diagnostics: Front panel LEDs for power, status, and user-defined functions.

Technical Specifications

• Power Consumption: < 25 W (typical).

• Operating Temperature: 0°C to +55°C (standard), extended options available.

• Storage Temperature: -40°C to +85°C.

• Humidity: 5% to 95% non-condensing.

• Form Factor: 6U VMEbus (single-slot).

• Dimensions: 233 x 160 mm (6U x 160mm depth).

• Compliance: VME64x specification ANSI/VITA 1-1994.

Functional Description

The AP-4 processor module functions as the central computing unit in VMEbus-based systems. It can operate as a system controller or as a slave processor. The board includes a PCI-to-VME bridge for efficient data transfer. Boot firmware (U-Boot or similar) allows loading of operating systems from flash, network, or disk. The module supports DMA transfers for high-speed data acquisition and control loops.

Applications

• Industrial control and automation systems.

• Telecommunications infrastructure (switching, routing).

• Military and aerospace systems (radar, signal processing).

• Medical imaging and diagnostic equipment.

• Test and measurement instrumentation.

Integration and Software

The module is designed for use in VMEbus chassis with standard backplanes. It supports both P1 and P2 connectors for I/O routing. Software development is supported with BSPs (Board Support Packages) for VxWorks and Linux. The board includes a JTAG interface for low-level debugging. Multiple modules can be combined in a single chassis for distributed processing.

Certifications

• CE, FCC Part 15 Class A.

• Designed to meet MIL-STD-810 for rugged environments (select models).

• RoHS compliant.

Note: This document provides technical information; refer to the Motorola AP-4 product manual for complete specifications and configuration details.