AMD 29203 2903 2901 Bit Slice Processor Test board MMI 6701 74181 ALU AM2901 - $170 - (Klamath Falls, OR)
he Am2903 Test Board is intended to test the working condition of the AMD Am2903 and its many compatible BSP chips.The Am2903 is a four-bit expandable bipolar microprocessor slice, of the Am2900 bit-slice family. The Am2903 performs all functions performed by the industry standard Am2901 and, in addition, provides a number of significant enhancements that are especially useful in arithmetic-oriented processors. In addition to its complete arithmetic and logic instruction set, the Am2903 provides a special set of instructions which facilitate the implementation of multiplication, division, normalization, and otherpreviously time-consuming operations.. The 2903 also contains a 16×4 bit two-port RAM.In a real application the Am2903 BSP elements execute micro instructions generated by a microprogram controller unit such as the AM2910, based on PROM stored microcode. In this test board a PIC MCU is used instead of a microcode PROM and microprogram controller.The PIC MCU’s test program provides register and function tests of AM2903 BSP and test routines with LED animations. It also supports 4 push buttons as inputs, and 8 LEDs as output devices.The board consists of the following base components of an 4-bit microcomputer system:48-pin ZIF Socket: For one Am2903 BSP to be tested.PIC MCU: Microcode controller to generate micro instruction of test code.8 LEDs: Output devices.4 Push Buttons: Input devices.4 bit data latches and bus drivers of each data and address ports.The board requires a single +5V power supply (400mA) provided through a mini-USB connector.There is a power switch and power indicator LED in the lower-right corner of the test board.Expansions:AM2901Since the AM2903 is an improved version of the AM2901 the board (via an expansion) also can support testing of the AM2901. The AM2901 is the most widely used 4-bit slicer ever made, having been produced for over 20 years, and used to implement a host of processors. With the AM2901 Expansion the board can tes…
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