Motorola MVME Series IPMC712/761 I/O Module

Prohibit simultaneous ON/OFF of two switches (to avoid abnormal device enumeration).

Jumper configuration:

IPMC712: J1 (reserved programming interface), J2/J3 (port 4 clock source), J5 (clock loop back);

IPMC761: J1 (reserved), J2/J3 (source of clock for port 3/4 transmission and reception).

（2） Installation specifications

Installation position: Only supports installation in PMC slot 1 of the host. Before installation, the filler plate of the host front board needs to be removed to ensure that the module front board is aligned with the host front board;

Static protection: An anti-static wristband must be worn, and the module should be stored in anti-static packaging to avoid touching the circuit board pins;

Mechanical fixation: Fix the module on the host bracket with 4 M2 screws, ensuring that connectors P11-P15 are fully engaged with the host socket;

EMI compliance: After installation, ensure that all panel openings of the host are covered by modules or filler boards to avoid electromagnetic interference leakage.

Programming and Compatibility

（1） Core points of programming

PCI device configuration:

The onboard PCI device includes a SCSI controller (vendor ID 0x1000, device ID 0x0012) and a PCI-ISA bridge (vendor ID 0x10A, device ID 0x0565), which require setting interrupt and DMA parameters through the PCI configuration space;

IDSEL address mapping: Ensure device enumeration uniqueness based on the host model corresponding to AD11 (MVME5100/5500) and AD16/AD21 (MVME6100).

Interrupt and DMA configuration:

Interrupt routing: SCSI interrupts (IRQ14) and serial/parallel interrupts (IRQ3/4/7/9/10) are bridged to the host MPIC (Multiprocessor Interrupt Controller) through PIB, with different interrupt pin assignments for different hosts (such as IRQ0/9 for MVME5100 and MPP5/16 for MVME6100);

DMA channels: Supports 7 ISA DMA channels, with channels 0/1/5/6 for serial port transmission and reception, channels 2/3 for parallel ports, and channel 4 for internal cascading.

VPD access: Access the onboard EEPROM (address 0xA4) through the I ² C bus to read configuration information such as module model and hardware version. The host needs to access it through the I ² C controllers of Hawk (MVME5100), GT-64260 (MVME5500), and MV64360 (MVME6100).

（2） System compatibility

Adaptation host: Only supports MVME5100, MVME5500, and MVME6100 single board computers, and S2 switch and interrupt mapping need to be configured according to the host model;

Backward compatibility: Supports replacing old MVME761/MVME712M modules and achieving I/O signal compatibility through P2 transition cables, but attention should be paid to some PMC I/O routing restrictions (such as IPMC712 not supporting backplane Ethernet);

Software support: Compatible with Motorola PowerPlus II architecture programming specifications, requiring the use of firmware tools such as MOTLoad and PPCBug for configuration and debugging.

Environmental adaptability and compliance certification

（1） Environmental parameters

Environmental category specification requirements

Temperature operation: 0~70 ℃ (compliant with IEC 60068-2-1/2); Storage: -40~85 ℃ (compliant with MIL-STD-810G)

Humidity 20%~95% (40 ℃ without condensation, in accordance with IEC 60068-2-78)

Vibration and shock operation vibration: 5~60Hz (0.137mm), 60~150Hz (1.0G, in accordance with IEC 60068-2-6); Storage impact: 15G (11ms, compliant with IEC 60068-2-27)

The protection level module body is IP20 (compliant with IEC 60529) and needs to be installed in control cabinets with a protection level of IP54 or higher

（2） Compliance certification

Electromagnetic compatibility (EMC): compliant with EN 55022 Class B, EN 61000-6-2/4, resistant to ESD (± 8kV air discharge), surge (± 2kV communication port);

Safety certification: CSA ordinary area certification, Class I Division 2 Groups A-D hazardous area (non flammable);

Environmental Compliance: Compliant with RoHS Directive (Restriction of Hazardous Substances) and WEEE Directive (Electronic Waste Recycling).

Precautions for use

SCSI signal conflict: When installing other modules in host PMC slot 2, it is important to note that there may be conflicts with the SCSI signal (P15 connector), and the redundant signal should be disconnected through a 0 Ω resistor (R92-R100);

Clock configuration: The serial port clock source needs to be strictly matched through jumper wires (such as distinguishing between "module driver" or "external input" for IPMC712 port 4 clock) to avoid communication abnormalities;

Firmware and documentation: The module needs to be used in conjunction with the host firmware (such as the Hawk ASIC firmware of MVME5100). It is recommended to refer to the host manual to confirm the details of interrupt and DMA configuration.