Xtrinsic MMA8653FC 3-Axis, 10-bit Digital Accelerometer - Freescale

6.8.3 0x2C: CTRL_REG3, System Control 3 Register
This register is used to control the Auto-WAKE/SLEEP function by setting the orientation or Freefall/Motion as an interrupt to
wake up. This register also configures the interrupt pins INT1 and INT2.
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
— — WAKE_LNDPRT — WAKE_FF_MT 0 IPOL PP_OD
MMA8653FC
Figure 40. 0x2C CTRL_REG3, System Control 3 Register (Read/Write)
Table 39. CTRL_REG3 register
Field Description
WAKE_LNDPRT
WAKE_FF_MT
IPOL
PP_OD
0: Orientation function is bypassed in SLEEP mode. Default value: 0.
1: Orientation function interrupt can wake up system
0: Freefall/Motion function is bypassed in SLEEP mode. Default value: 0.
1: Freefall/Motion function interrupt can wake up
Interrupt polarity ACTIVE high, or ACTIVE low. Default value: 0.
IPOL bit selects the polarity of the interrupt signal. When IPOL is ‘0’ (default value) any interrupt event will signaled with
a logical 0.
0: ACTIVE low
1: ACTIVE high
Push-Pull/Open Drain selection on interrupt pad. Default value: 0.
PP_OD bit configures the interrupt pin to Push-Pull or in Open Drain mode. The default value is 0 which corresponds to
Push-Pull mode. The Open Drain configuration can be used for connecting multiple interrupt signals on the same interrupt
line.
0: Push-Pull
1: Open Drain
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