The 8/16 RAM was a fully static, high performance 16K memory card which
could be used with either 8-bit or 16-bit wide systems. Data path width was
dynamically selected by the board depending upon the state of the sXTRQ*
signal as specified by the IEEE Proposed Standard for the S-100 Bus.
The board was designed to operate with the Seattle Computer Products 8086
CPU board with the CPU using clock speeds to 8 Mhz. The board uses "extended
addressing" allowing it to be located within the full 16 megabyte
addressable range of the IEEE bus. It was very well laid out and
quite simple to setup. You set the starting board address, if you were going
to use 16 bit data paths, and if the Phantom line was to be used. Then you
were ready to go.
The board was characterized by the same high noise immunity type design
employed in the company's highly successful 8-bit
PLUS and APEX memory cards.
The well written and detailed manual can be obtained
here.
