Patent ID: 6097218
Filing Date: 2000-08-01
Classification: H03K

Abstract:
A method for selectively electrically isolating an internal device signal bus of a semiconductor substrate from a second signal bus of said semiconductor substrate, comprising the steps of:electrically coupling said internal device signal bus of said semiconductor substrate to said second signal bus of said semiconductor substrate during an internal device operation for an internal device coupled to said internal device signal bus; andelectrically decoupling said internal device signal bus from said second signal bus following said device operation, wherein said coupling step further comprises:generating a latch enable signal; andproviding said latch enable signal to a latch coupling said internal device signal bus to said second signal bus so said internal device signal bus and said second signal bus are electrically coupled and signals may be transferred between said internal device signal bus and said second signal bus in response to said latch enable signal being in an active state.