L6460 datasheet(91/139 Pages) STMICROELECTRONICS

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L6460

Interrupt controller

Doc ID 17713 Rev 1

91/139

Interrupt controller

L6460 contains one programmable interrupt controller that can be used to advice the

firmware, through the serial interface, when a certain event happens inside the IC. The

output of the interrupt circuit can be also redirected on a GPIO pin therefore the event can

be signaled directly to the external circuits.

Figure 28.

Interrupt controller diagram

The Table 36 contains the events that can be monitored by the interrupt controller.

Table 36.

Interrupt controller event

Event

Event description

Notes

Mtr1Fault

Bridge 1 fault (Ilimit event)

Mtr2Fault

Bridge 2 fault (Ilimit event)

Mtr3Fault

Bridge 3 fault (Ilimit event)

Mtr4Fault

Bridge 4 fault (Ilimit event)

nAWAKE

nAWAKE pin low

SwRegCtrl Ilimit

Switching regulator controller Ilimit event.

VMainSW Ilimit

Main switching regulator Ilimit event.

LowPowSw 1

Low voltage power switch 1 Ilimit event.

LowPowSw 2

Low voltage power switch 2 Ilimit event

Warm

Warming event

Monitored signals

Enable signals

EnIntCtrl

Pulse

Generator

IntCtrlAutoDisable

EnIntCtrlPulse

DisableMonitor

Disable Pulse

Generation

logic

DisableSignals

To Gpio

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