I2C BUS CONTROL FOR ISOLATING SELECTED IC'S FOR FAST I2C BUS COMMUNICATION

摘要

A system, method, and apparatus are provided for selectively isolating particular ICs on an ISUP2/SUPC bus system. Selective isolation of particular ICs allows the particular isolated ICs to communicate with each other and/or with other components at a data transfer rate that is greater than the data transfer rate for the ISUP2/SUPC bus system. A switch is operative in one mode to selectively isolate an auxiliary or separate ISUP2/SUPC portion containing the ICs to be isolated and operative in another mode to allow the auxiliary ISUP2/SUPC portion to be part of the main ISUP2/SUPC bus sys portion tem. Proper pull-up resistors associated with the switch aid in allowing a faster data transfer rate by speed up of the low to high transition for operation of the isolated ICs.