mm908e625 Freescale Semiconductor, Inc, mm908e625 Datasheet - Page 21

• Manufacturer Part Number: mm908e625
• Description: Integrated Quad Half H-bridge With Power Supply, Embedded Mcu, And Lin Serial Communication
• Manufacturer: Freescale Semiconductor, Inc

INTERRUPT FLAG REGISTER (IFR
Hall-Effect Sensor Input Pin Flag Bit (HPF)
mode.
RUN Mode
enabled Hall-effect sensor input pin is detected. Clear HPF
by writing a Logic [1] to HPF. Reset clears the HPF bit.
Writing a Logic [0] to HPF has no effect.
STOP Mode
current above the threshold is detected on any enabled Hall-
effect sensor input pin. Clear HPF by writing a Logic [1] to
HPF. Reset clears the HPF bit. Writing a Logic [0] to HPF has
no effect.
data line. Clear LINF by writing a Logic [1] to LINF. Reset
clears the LINF bit. Writing a Logic [0] to LINF has no effect.
High-Temperature Flag Bit (HTF)
Clear HTF by writing a Logic [1] to HTF. If a high-temperature
LIN Flag Bit (LINF)
Analog Integrated Circuit Device Data
Freescale Semiconductor
Reset
Write
Read
Bits
This read/write flag is set depending on RUN/STOP
An interrupt will be generated when a state change on any
• 1 = State change on the hallflags detected
• 0 = No state change on the hallflags detected
An interrupt will be generated when AWDCC is set and a
• 1 = One or more of the selected Hall-effect sensor input
• 0 = None of the selected Hall-effect sensor input pins
This read/write flag is set on the falling edge at the LIN
• 1 = Falling edge on LIN data line has occurred
• 0 = Falling edge on LIN data line has not occurred since
This read/write flag is set on a high-temperature condition.
pins had been pulled HIGH
has been pulled HIGH
last clear
0
0
7
Register Name and Address: IFR - $05
HPF
6
0
LINF
5
0
HTF
4
0
LVF
3
0
LOGIC COMMANDS AND REGISTERS
)
HVF
2
0
OCF
1
0
0
0
0
condition is still present while writing a Logic [1] to HTF, the
writing has no effect. Therefore, a high-temperature interrupt
cannot be lost due to inadvertent clearing of HTF. Reset
clears the HTF bit. Writing a Logic [0] to HTF has no effect.
Low-Voltage Flag Bit (LVF)
LVF by writing a Logic [1] to LVF. If a low-voltage condition is
still present while writing a Logic [1] to LVF, the writing has no
effect. Therefore, a low-voltage interrupt cannot be lost due
to inadvertent clearing of LVF. Reset clears the LVF bit.
Writing a Logic [0] to LVF has no effect.
High-Voltage Flag Bit (HVF)
Clear HVF by writing a Logic [1] to HVF. If high-voltage
condition is still present while writing a Logic [1] to HVF, the
writing has no effect. Therefore, a high-voltage interrupt
cannot be lost due to inadvertent clearing of HVF. Reset
clears the HVF bit. Writing a Logic [0] to HVF has no effect.
Overcurrent Flag Bit (OCF)
Reset clears the OCF bit. To clear this flag, write a Logic [1]
to the appropriate overcurrent flag in the SYSSTAT Register.
See
OCF.
• 1 = High-temperature condition has occurred
• 0 = High-temperature condition has not occurred
This read/write flag is set on a low-voltage condition. Clear
• 1 = Low-voltage condition has occurred
• 0 = Low-voltage condition has not occurred
This read/write flag is set on a high-voltage condition.
• 1 = High-voltage condition has occurred
• 0 = High-voltage condition has not occurred
This read-only flag is set on an overcurrent condition.
• 1 = High-current condition has occurred
• 0 = High-current condition has not occurred
Figure
Figure 10. Principal Implementation for OCF
10,illustrating the three signals triggering the
HVDD_OCF
HS_OCF
HB_OCF
LOGIC COMMANDS AND REGISTERS
FUNCTIONAL DEVICE OPERATION
OCF
908E625
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