Motorola IPMC761-001 Intelligent Power Management Controller

The Motorola IPMC761-001 is a multifunction rear I/O PMC (PCI Mezzanine Card) module designed primarily for use with the MVME761 and MVME5100 series single-board computers. It serves as a versatile input/output expansion card that provides a range of communication interfaces and peripheral ports to extend system functionality in embedded computing environments.

Description

The Motorola IPMC761-001 is a multifunction rear I/O PMC (PCI Mezzanine Card) module designed primarily for use with the MVME761 and MVME5100 series single-board computers. It serves as a versatile input/output expansion card that provides a range of communication interfaces and peripheral ports to extend system functionality in embedded computing environments.

This module integrates an 8-bit SCSI interface for high-speed data storage device connections, a Centronics-compatible parallel port for printer or other parallel device interfacing, and multiple serial communication ports including two asynchronous and two synchronous/async serial ports. These features make the IPMC761-001 ideal for applications requiring diverse I/O operations such as telecommunications, industrial automation, and data acquisition systems.

The module supports typical baud rates for asynchronous serial communication up to 38.4 Kbps for EIA-232 and 115 Kbps raw data rates, while synchronous ports can reach up to 2.5 Mbps. It uses TTL-level signaling interfaced through the P2 connector and front panel RJ-45 connectors. The design includes DMA support for ultra SCSI operation, enabling data rates as high as 20 MB/s (8-bit mode) or 40 MB/s (16-bit mode).

IPMC761-001
IPMC761-001

Key specifications:

Parameter Value
Model IPMC761-001
Brand Motorola
Product Type Multifunction Rear I/O PMC Module
SCSI Interface 8-bit and 16-bit Ultra SCSI with DMA
Parallel Port Centronics compatible
Serial Ports 2 asynchronous (EIA-232), 2 synchronous/async
Max Serial Baud Rate 38.4 Kbps (async), 2.5 Mbps (sync)
Communication Signals TTL-level to PMC P2 and front panel RJ-45
Power Consumption Approx. 7.5 W max per PMC slot
Dimensions 233.4 mm x 80 mm x 19.8 mm (9.2″ x 3.1″ x 0.8″)
Operating Temperature 0°C to +55°C (operating typical)

The IPMC761-001 supports multiple operating systems such as VxWorks, Linux, and others common in embedded systems, leveraging driver and software support available for the MVME platform. It enhances single-board computer systems by offloading I/O tasks and providing additional connectivity options critical for industrial and telecommunications applications.

Installation is done via PMC slots on compatible VMEbus SBCs or similar embedded computer boards, typically requiring secure mounting and proper cabling of SCSI devices, serial networks, and parallel peripherals. Proper configuration and driver support ensure full utilization of the module’s capabilities.

Motorola provides comprehensive technical documentation, firmware, and software tools for the IPMC761-001, supporting troubleshooting, configuration, and integration with MVME systems. This module remains an essential component for legacy and certain contemporary embedded platforms requiring multifunction I/O expansion.