Pt-Vme141/141E; Pt-Vme151/151E - Performance Computer PT-VME151A User Manual

Extensible single board computer/controller
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• No 82C54 CHMOS Programmable Interval Timer
• No DS1643 Nonvolatile Timekeeping RAM

PT-VME141/141E

The PT-VME141 and PT-VME141E were designed as the VME64 entry level members of the family.
Their features are described in this manual and summarized in the previous section.
These boards make the step into the newly defined VME64 mode pioneered by Performance Technolo-
gies. Operating in VME64 mode the PT-VME141 can burst data over the VMEbus at rates up to 60
MBytes per second. This high speed transfer capability makes the 141 ideal for applications that require
maximum VMEbus utilization.
The features of the PT-VME141 and PT-VME141E are identical to the PT-VME151A with the following
exceptions:
• Advanced Thirty-Two Bit Microprocessor With Internal Cache
PT-VME141 utilizes 25 MHz 68030 MPU w/MMU
PT-VME141E utilizes 25 MHz 68EC030 MPU w/o MMU
• 1, 2, 4, or 8 Megabytes of Shared DRAM
• 256 Kbytes or 1 Mbyte Of Optional SRAM
2 Clock Local Access
68040 Cache Burst Read Mode (2-1-1-1 Clock Timing)
• No 82C54 CHMOS Programmable Interval Timer
• No DS1643 Nonvolatile Timekeeping RAM

PT-VME151/151E

As the top performers in the family the PT-VME151 and PT-VME151E utilize the Motorola MC68040
and MC68EC040, respectively. The MC68040 is Motorola's third generation of M68000-compatible,
high performance, 32-bit microprocessors that offers approximately twice the processing power of the
MC68030 running at the same clock rate.
The features of the PT-VME151 and PT-VME151E are identical to the PT-VME151A with the following
exceptions:
• 1, 2, 4, or 8 Megabytes of Shared DRAM
3 Clock Local Access
68040 Cache Burst Read Mode (3-2-2-2 Clock Timing)
• 256 Kbytes or 1 Mbyte Of Optional SRAM
2 Clock Local Access
68040 Cache Burst Read Mode (2-1-1-1 Clock Timing)
• No 82C54 CHMOS Programmable Interval Timer
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
Extensible Single Board Computer/Controller User's Manual 7
Performance Computer

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