Functional Description

1

 

Functional Description

This section contains a functional description of the major blocks on the

MVME166 Single Board Computers.

Front Panel Switches and Indicators

There are switches and LEDs on the front panel of the MVME166. The switches are RESET and ABORT. The RESET switch resets all onboard devices and drives SYSRESET* if the board is system controller. The RESET switch may be disabled by software.

When enabled by software, the ABORT switch generates an interrupt at a user- programmable level. It is normally used to abort program execution and return to the debugger.

There are ten LEDs on the MVME166 front panel: FAIL, STAT, RUN, SCON, LAN, RPWR, SCSI, VME, TPWR and VSB.

The red FAIL LED (part of DS1) lights when the BRDFAIL signal line is active. The MC68040 status lines are decoded, on the MVME166, to drive the yellow STAT (status) LED (part of DS1). In this case, a halt condition from the processor lights the LED.

The green RUN LED (part of DS2) lights when the local bus TIP* signal line is low. This indicates one of the local bus masters is executing a local bus cycle. The green SCON LED (part of DS2) lights when the VMEchip2 in the MVME166 is the VMEbus system controller.

The green LAN LED (part of DS3) lights when the LAN chip is local bus master.

The MVME166 supplies +5V, +12V, and -12V power to the transition board through fuses. There is one fuse for each voltage. The green RPWR (remote power) LED (part of DS3) lights when all three voltages are available to the transition board interface.

The green SCSI LED (part of DS4) lights when the SCSI chip is local bus master. The green VME LED (part of DS4) lights when the board is using the VMEbus (VMEbus AS* is asserted by the VMEchip2) or when the board is accessed by the VMEbus (VMEchip2 is the local bus master).

The MVME166 supplies +5V to the SCSI bus for terminator power through a fuse. The green TPWR (terminator power) LED (part of DS5) lights when TERMPWR is available to the SCSI bus. SCSI bus TERMPWR may be supplied by other devices on the SCSI bus.

The green VSB LED (part of DS5) lights when the MVME166 is using the VSB (VSB PAS* is asserted by the VSBchip2) or when the MVME166 is accessed by the VSB (VSBchip2 is the local bus master).

MVME166IG/D2

1-9

Page 22 Page 24
Page 23
Image 23
Motorola MVME166IG/D2, MVME166D2 manual Functional Description, Front Panel Switches and Indicators
Page 22 Page 24

MVME166IG, MVME166D2, MVME166IG/D2 specifications

The Motorola MVME166IG/D2 is a pioneering embedded computer designed for high-performance applications in industrial and telecom sectors. This versatile computing platform is based on the PowerPC architecture, which ensures efficient processing capabilities and transfer of data, making it suitable for a wide range of applications, including real-time control, data acquisition, and system monitoring.

One of the main features of the MVME166IG/D2 is its powerful processor. The system is equipped with a PowerPC 603e processor, which offers a remarkable performance rate with a clock speed of up to 250 MHz. This high-speed processing capability allows for rapid data handling and processing, which is critical for demanding applications in real-time environments.

The MVME166IG/D2 also stands out due to its modular design. It supports multiple expansion slots that make it adaptable for different user needs. The system can accommodate additional cards or memory modules, allowing for increased versatility and capability in various operational scenarios.

In terms of connectivity, this embedded computer includes multiple communication interfaces such as Ethernet and serial ports, which facilitate seamless data transfer and communication within larger systems. This connectivity is crucial for integrating the device into existing industrial networks or for connecting with sensors and other equipment.

Another noteworthy characteristic of the MVME166IG/D2 is its robust build quality, which is essential for operation in challenging environments. The device is designed to endure high levels of shock and vibration, making it suitable for deployment in applications such as transportation or heavy machinery.

Additionally, the MVME166IG/D2 offers a range of software support which includes various real-time operating systems. This compatibility allows developers to choose the OS that best fits their application's requirements, enhancing the overall utility of the system.

In summary, the Motorola MVME166IG/D2 is a powerful, flexible embedded computing solution that excels in performance, modularity, and reliability. Its advanced features and durable design make it an ideal choice for industries that require precision, speed, and robustness in their computing solutions.
Top Page Image Contents