DS3105LN+【PDF 32/124 页】IC TIMING LINE CARD 64-LQFP

DS3105

PIN NAME

(1)

TYPE

(2)

PIN DESCRIPTION

INTREQ/LOS

Interrupt Request/Loss of Signal. Programmable (default: INTREQ). The INTCR:LOS bit

determines whether the pin indicates interrupt requests or loss of signal (i.e., loss of selected

reference).

INTCR:LOS = 0: INTREQ mode

The behavior of this pin is configured in the INTCR register. Polarity can be active high or

active low. Drive action can be push-pull or open drain. The pin can also be configured as

a general-purpose output if the interrupt request function is not needed.

INTCR:LOS = 1: LOS mode

This pin indicates the real-time state of the selected reference activity monitor (see Section

7.5.3). This function is most useful when external switching mode (Section 7.6.5) is

enabled (MCR10:EXTSW = 1).

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