Motorola MVME167 User Manual download pdf (Page 37)

Data LAN

ICD 13—Standard Controller ICD-13/05 37 of 56

2. To set the output voltages for measurement using a multimeter, write a 16-bit value

to the card using an address offset of twice the channel number:

167-Bug>MW FFFF410A 800

Effective address: FFFF4105

Effective data : 0800

• Channel 5 set to zero Volts (half-way between -10 and +10 Volts).

167-Bug>MW FFFF411E FFF

Effective address: FFFF4105

Effective data : 0FFF

• Channel 15 set to +9.9951 Volts (max. voltage).

The card uses the top data bit (D15) to differentiate between control and DAC data, with

the top bit set to indicate control information as in 1 above. Use data values only in the

range 0 to FFF.

15.0 Data LAN

The Data LAN provides a high-speed connection between instrument detector control-

lers and the Data Handling System (DHS). Because of the data rates and possible traffic

the 10Mbps control LAN is not sufficient, and a separate Ethernet and EtherNet control-

ler board is required.

15.1 Description

The Data LAN controler is a Heurikon Baja4700 MIPS VMEbus computer with a Dig-

ital Equipment 100Base-TX PMC board. This board is a fully-functional CPU which is

used as a second processor in the VME crate to transfer data between the instrument and

DHS.

In addition to the Baja4700 and Digital FastEtherworks cards two cables need to be pur-

chased for the serial/Ethernet and fast Ethernet. The Heurikon part numbers for the

entire order are

TABLE 28. Heurikon Baja4700 Specifications

Item Description

Model Number Baja4700-175-16MB-1FL

Manufacturer Heurikon Corporation

Dimensions 1 slot x 6U

Connections 2 serial ports, 1 10BaseT

Power

OperatingTemperature 0to60degreeC

Humidity 5 to 95% non-condensing

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Motorola MVME167 User Manual Page 37