908E621_08 Datasheet, PDF (37/65 Pages) Freescale Semiconductor, Inc – Integrated Quad Half-bridge and Triple High Side with Embedded MCU and LIN for High End Mirror

FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
General Purpose Input
H0 is selected as a general purpose input, if the H0MS bit
in the H0/L0 Status and Control Register (HLSCTL) is
cleared. In this mode, the input is usable as a standard 5V
input. The H0 input has a selectable internal pullup resistor.
The pullup can be switched off with the H0PD bit in the H0/L0
Status and Control Register (HLSCTL). After reset, the
internal pullup is enabled.
VDD
VDD
10k
H0PD
H0F
HVDDON
HVDD
3 pin hall sensor
Vs
H0
OUT
GND
GND
Figure 20. H0 Used as 3 Pin Hall-effect Sensor Input
VDD
10k
H0PD
H0
H0F
GND
Figure 21. H0 Used to Read in Standard Switches
H0 Interrupt
The interrupt functionality on this pin is only available in
RUN mode. The H0 interrupt flag H0IF is set in run mode by
a state change of the H0 flag (rising or falling edge on the
enabled input). The interrupt function is available if the input
is selected as General Purpose or as 2-pin Hallsensor input.
The interrupt can be masked with the H0IE bit in the interrupt
mask register.
Wake-up input L0
The device provides one wake-up capable input for
reading VSUP or VDD related signals.
Analog Integrated Circuit Device Data
Freescale Semiconductor
908E621
37