The design of an interface unit is described, in which RS232 serial data is converted to latched parallel data on 22 independent lines. The data direction of each line is programmable through the serial port. Two picocontrollers are employed in a parallel processing mode to give the required number of I/O pins, and data on the shared serial line is coded to separate data streams to the individu...

Abstract Interface induced diffusion had been identified in a thin film system damaged by electron bombardment. This new phenomenon was observed Al 2 O 3 (some nm thick)/Si substrate system, which subjected to low energy (5 keV) bombardment producing defects the layer. The produced partially relaxed. rate of relaxation is, however, different vicinity interface and "bulk" parts difference create...