I

Link interface isolation control input. This terminal controls the operation of output differentiation logic on the CTL and D terminals. If an optional Annex J type isolation barrier is implemented between the TSB41AB1 and LLC, the ISO terminal should be tied low to enable the differentiation logic. If no isolation barrier is implemented (direct connection), or TI bus holder isolation is implemented, the ISO terminal should be tied high to disable the differentiation logic. For additional information refer to TI application note Galvanic Isolation of the IEEE 1394-1995 Serial Bus, SLLA011.

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