G PHYSICS
G06 COMPUTING OR CALCULATING; COUNTING
G06F ELECTRIC DIGITAL DATA PROCESSING
13/00 Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
G06F13/38 Information transfer, e.g. on bus
G06F13/4063 Device-to-bus coupling
G06F13/4068 Electrical coupling