908E621_08 Datasheet, PDF (38/65 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
RUN Mode
The actual input state is reflected in the L0F bit of the H0/
L0 Status and Control register (HLSCTL).
The L0 pin offers an interrupt capability on the rising and
falling edge. The interrupt can be enabled with the L0IE bit in
the Interrupt Mask register.
STOP/SLEEP Mode
During STOP and SLEEP mode, the pin can be used to
wake-up the device.
Before entering the STOP or SLEEP mode, the actual
state of the input is stored. If the state is changing during in
the STOP or SLEEP mode, a wake-up is initiated.
H0 / L0 Status and Control Register (HLSCTL)
Register Name and Address: HLSCTL - $07
Bit7
6
5
4
3
2
1
Bit0
Read L0F
0
Write
0
H0F
H0OCF
H0EN H0PD H0MS
Reset 0
0
0
0
0
0
0
0
L0F — L0 Flag Bit
This read only flag reflects the state of the L0 input
1 = L0 input high
0 = L0 input low
H0OCF — H0 Over-current Flag Bit
This read/write flag is set at over-current condition on H0
during 2-pin hallsensor mode. Clear H0OCF by writing a
logic [1] to H0OCF. Reset clears the H0OCF bit.
1 = over-current condition on H0 pin has occurred
0 = no over-current condition on H0 pin has occurred
H0F — H0 Flag Bit
This read only flag reflects the state of the H0 input
1 = Hallport sensed high / current below threshold
detected
0 = Hallport sensed low / current above threshold
detected
H0EN — H0 Input 2-pin Hall-effect sensor Enable Bit
This read/write bit enables the 2-pin hall-effect sensor
sense circuitry. Reset clears H0EN bit.
1 = Hallport H0 is switched on and sensed
0 = Hallport H0 disabled
H0PD — Hallport Pullup Disable Bit
This read/write bit disables the H0 Pullup resistor. Reset
clears H0PD bit.
1 = Hallport pullup resistor on H0 disabled
0 = Hallport pullup resistor on H0 enabled
H0MS — H0 Mode Select
These read/write bits select the mode of the H0 input
Reset clears H0MS bit.
1 = H0 is 2-pin hallsensor input
0 = H0 is general purpose input
Half-bridge Outputs
Outputs HB1:HB4 provide four low-resistive half-bridge
output stages. The half-bridges can be used in H-bridge, high
side or low side configurations.
Reset clears all bits in the H-bridge Output Register
(HBOUT) owing to the fact that all half-bridge outputs are
switched off.
HB1:HB4 output features
• Short-circuit (over-current) protection on high side and
low side MOSFETs
• Current recopy feature (low side MOSFET)
• Over-temperature protection
• Over-voltage and under-voltage protection
• Active clamp on low side MOSFET
908E621
38
Analog Integrated Circuit Device Data
Freescale Semiconductor