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Features

The MVME147S features include

MC68030 microprocessor

Floating point coprocessor (MC68882)

Shared DRAM with parity (no parity on MVME147SRF)

Four serial ports with RS-232C buffers

Small Computer System Interface (SCSI) bus interface with DMA channel

Timer/calendar with battery backup

2K by 8 CMOS RAM with battery backup

Four ROM/PROM/EPROM/EPROM sockets (16-bit wide)

VMEbus interrupter

VMEbus system controller functions

VMEbus master interface (A32/D32. A24/D16 compatible)

VMEbus Requestor

SCON, DUAL, FAIL and STATUS status indicators

Reset and abort switches

Centronics Printer Port

Two 16-bit ticking timers for periodic interrupts

Watchdog timer

Ethernet transceiver interface (except MVME147SRF)

Cooling Requirements

Motorola VME modules are specified, designed, and tested to operate with forced air cooling from

Reliable operation over the incoming air temperature range of 0 degrees Celsius to 55 degrees Celsius (32 degrees Fahrenheit to 131 degrees Fahrenheit).

Temperature qualification was performed in a standard Motorola VMEsystem 1000 chassis.

A 25-watt load board was inserted in two card slots, one on each side, www.ge-drive.com adjacent to the board under test to simulate a high power density system configuration.

Three axial fans, each rated at 100 CFM, were mounted directly below the MVME card box.

The temperature of the incoming airflow was measured between the fan assembly and the card box, where the airflow first encountered the module under test.

The test software is executed when the module is subjected to a change in ambient temperature. The test software is executed when the ambient temperature changes.

Case temperatures of critical high power density integrated circuits are monitored to ensure that component supplier specifications are not exceeded.

While the exact amount of airflow required for cooling depends on the ambient air temperature as well as the type, number, and location of boards and other heat sources.

However, typically as little as 10 CFM of airflow through the module is sufficient for cooling.

In environments with lower maximum ambient temperatures, less airflow is required to cool the module.

Under more favourable thermal conditions, increased airflow will allow the module to operate reliably at ambient temperatures above 55 degrees Celsius.

It is important to note that in addition to the rated CFM of the air pusher, there are several factors that determine the actual amount of air flowing through the module.

FCC Compliance

These VME modules (MVME147S) have been tested in an FCC-compliant enclosure and meet the requirements for a Class A device.

FCC compliance is achieved under the following conditions:

Shielded cables are used for all external I/O ports

The cable shield is connected to ground through a metal-shell connector bonded to the front panel of the conductive module

Chassis rails are connected to earth ground

Front panel screws are tightened

The above conditions must be met in order to minimise RF emissions; failure to do so will affect the FCC compliance of the equipment containing the module.

General Description

The MVME147S is a dual-height VME module best suited for use in 32-bit VMEbus systems using both P1 and P2 backplanes.

It is a powerful module with large on-board shared RAM, a serial port, and a Centronics printer port.

The module provides a SCSI bus controller with DMA, floating point coprocessor, tick timer, and watchdog timer,

timer clock/calendar with battery backup, 2KB of static RAM with battery backup, four ROM slots, a serial interface, and a printer port.

In addition, the MVME147S provides 2KB of static RAM with battery backup, four ROM sockets, and an A32/D32 VMEbus interface with system controller functions.

The MVME147S can operate as part of a VMEbus system with other VME modules such as RAM modules, CPU modules, graphics modules and analogue I/O modules.

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♦ 25 MHz MC68040 with floating point co-processor or 25 MHz MC68LC040

♦ High-performance DMA, supports VMEbus D64 and local bus memory burst cycles

♦ 16 or 32MB of configurable SDRAM with ECC option

♦ 128KB of SRAM with battery backup

♦ 1MB of Flash memory

♦ 8K x 8 NVRAM and time-of-day clock with battery backup

♦ Four serial communication ports, configured as EIA-232-D DTE

♦ Two 16-bit or one 32-bit IndustryPack® ports with one DMA channel per port

♦ Six 32-bit timers, one watchdog timer

♦ Optional SCSI and Ethernet interfaces

♦ Two 32-pin JEDEC DIP sockets for EPROM

♦ Remote Reset/Abort/Status control functions

♦ On-board debugger and diagnostic firmware

Dual IndustryPack logic interface for embedded monitoring and control applications

The MVME162P2 embedded controller provides a powerful and functional processor which can www.ge-drive.com be customer-configured for specific applications.

The MVME162P2 extends its range of solutions by boosting the performance level and increasing the number of options. This flexibility allows a user to configure cost-ffective solutions ranging from embedded controllers to single-board computers. With the compute power of the MC68040 and the flexibility of the IndustryPack mezzanine interface, the MVME162P2 combines the mechanical ruggedness of VME with the cost effectiveness of PC-type products.

The inclusion of the new “Petra” application-specific integrated circuit (ASIC), which replaces functions formerly implemented in the IP2 chip and MC2 chip, improves the performance of the memory subsystem. Memory configuration switches enable the customer to tailor memory size for applications requiring smaller memory configurations.

IndustryPack Interface

A key feature of the MVME162P2 is the IndustryPack interface. IndustryPack modules provide a wide variety of connectivity to “real-world” I/O. Expansion is accomplished by

means of a mezzanine board mounted to the MVME162P2.

Up to two single-wide IndustryPack modules can be installed on the MVME162P2 and still occupy only one VME slot.

VMEbus Interface

VMEbus interface functionality is provided by the VMEchip2 ASIC designed by Motorola. In addition to controlling the system’s VMEbus functions, the VMEchip2 includes a local bus to/from VMEbus DMA controller, VME board support features, as well as global control and status register (GCSR) for interprocessor communications. The MVME162P2 also provides support for the VME D64 specification within the VMEbus interface, further enhancing system performance.

For deeply embedded applications, versions of the MVME162P2 are available without the VMEbus interface.

These versions have power and ground connections through the P1 VMEbus connector.

Peripheral Interface

Peripheral I/O connections for the MVME162P2 series are located on the front panel of the module. Serial port connection is via four RJ-45 connectors. SCSI devices are interfaced via an industry-standard 68-pin connector. A DB-15 connector is used for Ethernet. IndustryPack I/O signals are available via 50-pin connectors behind the front panel for connecting external I/O devices.

Memory Options

The MVME162P2 provides users with a variety of data storage options such as SDRAM with ECC option, EPROM/ROM, Flash, and battery-backed SRAM.

Software Support

The MVME162P2 is supported by a wide range of real-time kernels and embedded operating systems.

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• 8 channels

• 16-bit DACs

• Fast settling: 10 µs maximum to ±0.003 percent of FSR

• Buffered voltage output (±10 V at 5 mA)

• Multiplexed programmable outputs on P2 connector for testing analog outputs

• Double-buffered data latches

• Jumper-selectable synchronized update control

• Selectable external update control input or software-controlled strobe provides single www.ge-drive.com update strobe for all DAC outputs

• Front panel fail LED

• High reliability DIN-type output connector

• Outputs set to 0.0 V on power up

— Outputs are automatically disconnected from the field at power up

• Double Eurocard form factor

• Supports VMIC’s analog expansion and Built-in-Test bus (AMXbus™) that interconnects the P2 connectors of various VMIC ADC and DAC boards and expansion multiplexer boards

• Multiplexed programmable outputs for testing analog input multiplexer boards

— Requires VMIC ADC board and AMXbus for Built-In-Test

INTRODUCTION — The VMIVME-4116

Digital-to-Analog Converter (DAC) Board performs digital-to-analog conversion on 16-bit positive true offset binary or two’s complement coded words, with an analog output range of -10 to +10 V. This provides for a resolution of 305 µV for each digital input of 1 LSB change. The buffered output voltage settles to within 1/2 LSB in 10 µs.

The DAC offers a Digital-to-Analog Integrated Circuit (IC) per channel. A Control and Status Register (CSR) is loaded by the processor and this register controls the functioning of the board. The CSR can be read by the processor at any time. The VMIVME-4116 board functional block diagram is shown in Figure 1. Each of the eight DACs is preceded by double-buffered data latches.

The data latches allow versatility in the way the DAC analog output may be updated.

There are three methods by which new data can be converted by a DAC. Each method is enabled/disabled by on-board jumpers and is further controlled by a CSR that must be loaded by the user.

FUNCTIONAL CHARACTERISTICS

Compatibility: The VMIVME-4116 Analog Output Board is a standard, double height, printed circuit board which is compatible with the VMEbus specification.

Board Address: The physical address for the board is selected by 12 DIP switches. VMEbus address lines A05 through A15 are decoded for board selection.

VMEbus Access: Address modifier bits are jumper-selectable to support nonprivileged short I/O or supervisory short I/O access. The board is factory configured for supervisory short I/O access.

Data Transfer: Data can be written to one of the eight Digital-to-Analog Converters (DACs) in bytes or words (via data bits D00 through D15). Bipolar operation(-10 to +10 V output) uses offset binary coding or two’s complement binary coding.

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