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INTEL 186 EB/EC EVALUATION BOARD USER’S MANUAL
3.2MICROPROCESSOR
The core of the evaluation board is the 80x186 microprocessor. This processor operates at
3.3volts up to 16 MHz in this board. Alternatively, the board can be configured to run at 5 volts up to 33 MHz. To vary the CPU clock speed, an appropriate frequency value oscillator must be installed at location U3 on the EC board and at location U5 on the EB board. The oscillator operates at twice the frequency of the installed processor.
The 80x186 processor offers the following features:
•
•1 Mbyte address space
•2
•10 programmable
•Interrupt control unit
•3 programmable timer/counters
•Power management unit
•
•4 DMA channels (EC only)
The
NOTE
Because host communications use the
3.2.1Packaging
The 80x186 EC is packaged in a 100 lead PQFP and socket and the 80x186 EB is packaged in an 84 lead PLCC package and socket. Adaptors are available from Applied Microsystems Corp.* and Emulation Technologies, Inc.* to allow for the connection of