User Manual
963
Rev. 1.1
2019-03-18
TLE984xQX
Microcontroller with LIN and Power Switches for Automotive Applications
Low-Side Switch
27.4
Interrupt Generation - and Status Bit Logic
The interrupt flags of the low-side module are having the following behaviour:
Overcurrent detection:
the overcurrent detection interrupt flag is a level sensitive interrupt flag. This flag is
set when the overcurrent condition occurs and stays persistent until the condition is removed.
Overtemperature detection:
the overtemperature detection interrupt flag is a level sensitive interrupt flag.
This flag is set when the overtemperature condition occurs, but can be cleared immediately. The
overtemperature status of the overtemperature condition can then still be monitored in the dedicated status
register, which is placed in the same interrupt status register.
Open Load detection:
the open load detection interrupt flag is a level sensitive interrupt flag. This flag is set
when the open condition occurs, but can be cleared immediately. The open load status of the open load
condition can then still be monitored in the dedicated status register, which is placed in the same interrupt
status register.
Figure 221 Low-Side 1 / 2 Switch Interrupt Generation
IRQEN.LS1_OC_IEN
IRQS.LS1_OT_IS
IRQS.LS1_OC_IS
LS1_OT_STS
IRQEN.LS1_OT_IEN
LS1_OL_STS
IRQEN.LS1_OL_IEN
IRQS.LS1_OL_IS
>=1
LS_1_IRQ (Node 17)
IRQEN.LS2_OC_IEN
IRQS.LS2_OT_IS
IRQS.LS2_OC_IS
LS2_OT_STS
IRQEN.LS2_OT_IEN
LS2_OL_STS
IRQEN.LS2_OL_IEN
IRQS.LS2_OL_IS
>=1
LS_2_IRQ (Node 18)
IRQS.LS1_OT_PR
EWARN_IS
LS1_OT_PREWARN_STS
IRQEN.LS1_OT_PREWARN_IEN
IRQS.LS2_OT_PR
EWARN_IS
IRQEN.LS2_OT_PREWARN_IEN
LS2_OT_PREWRN_STS
LS2_overcurrent_
status (signal)
LS1_overcurrent_
status (signal)