FOXBORO FBM218 P0922VW Overspeed Tachometer Module

The MVME167 onboard DRAM is located on a mezzanine board. The mezzanine boards are available in different sizes and with parity protection or ECC protection.Motorola software does support mixed parity and ECC memory boards on the same main board. The DRAM is four-way interleaved to efficiently support cache burst cycles. Onboard DRAM mezzanines are available in these configurations: ❏ 4, 8, 16, or 32MB with parity protection ❏ 4, 8, 16, 32, 64, or 128MB with ECC protection Two mezzanine boards may be stacked to provide up to 256MB of onboard RAM (ECC). ❏ The main board and a single mezzanine board together take one slot. ❏ The stacked configuration requires two VMEboard slots.

DRAM Programming Considerations

 ❏ The DRAM map decoder can be programmed to accommodate different base address(es) and sizes of mezzanine boards. 

❏ The onboard DRAM is disabled by a local bus reset and must be programmed before the DRAM can be accessed. 

❏ Most DRAM devices require some number of access cycles before the DRAMs are fully operational. – Normally this requirement is met by the onboard refresh circuitry and normal DRAM installation. However, software should insure a minimum of 10 initialization cycles are performed to each bank of RAM. Refer to the MEMC040 or the MCECC in the Single Board Computers Programmer's Reference Guide for detailed programming information.

Battery Backed Up RAM and Clock

The clock provides ❏ Seconds, minutes, hours, day, date, month, and year in BCD 24-hour format ❏ Automatic corrections for 28-, 29- (leap year), and 30-day months No interrupts are generated by the clock. The MK48T08 is an 8 bit device; however, the interface provided by the PCCchip2 supports 8-, 16-, and 32-bit accesses to the MK48T08. Refer to the MK48T08 data sheet for detailed programming information

product application

Products are widely used in metallurgy, petroleum, glass, aluminum manufacturing, petrochemical industry, coal mine, papermaking, printing, textile printing and dyeing, mechanical, electronic manufacturing, automobile manufacturing, plastic machinery, electric power, water conservancy, water treatment/environmental protection, boiler heating, energy, power transmission and distribution and so on

Superior products

--ABB Accuray

--ABB Advant OCS

--ABB Advant-800xA

--ABB H&B Contrans T

--ABB H&B Freelance 2000

--Allen Bradley PLC

--GE Ran card machine accessories,PLC

--ICS Triplex Rockwell T8151B/T8461/T8310

--Triconex/Foxboro:3625/3721/3503E/FBM237/FBM242

--Emerson:CE3008/VE3008/SE3008/A6120/A6312

--Motorola:MCP750/MVME162/MVME2604/MVME5100

--Woodward:9907-164/9907-167/9905-144/9905-018

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