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0x2C: CTRL_REG3 Interrupt Control Register
0x2C CTRL_REG3 Register (Read/Write)
Bit 7
0
Bit 6
WAKE_TRANS
Bit 5
WAKE_LNDPRT
Bit 4
WAKE_PULSE
Bit 3
WAKE_FF_MT
Bit 2
0
Bit 1
IPOL
Bit 0
PP_OD
Table 61. CTRL_REG3 Description
WAKE_TRANS
WAKE_LNDPRT
0:
1:
0:
1:
Transient function is bypassed in SLEEP mode. Default value: 0.
Transient function interrupt can wake up system
Orientation function is bypassed in SLEEP mode. Default value: 0.
Orientation function interrupt can wake up system
WAKE_PULSE
WAKE_FF_MT
IPOL
PP_OD
0: Pulse function is bypassed in SLEEP mode. Default value: 0.
1: Pulse 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.
0: ACTIVE low; 1: ACTIVE high
Push-Pull/Open Drain selection on interrupt pad. Default value: 0.
0: Push-Pull; 1: Open Drain
IPOL bit selects the polarity of the interrupt signal. When IPOL is ‘0’ (default value) any interrupt event will signaled with a
logical 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.
0x2D: CTRL_REG4 Register (Read/Write)
0x2D CTRL_REG4 Register (Read/Write)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
INT_EN_ASLP
0
INT_EN_TRANS INT_EN_LNDPR INT_EN_PULSE INT_EN_FF_MT
0
INT_EN_DRDY
Table 62. Interrupt Enable Register Description
Interrupt Enable
INT_EN_ASLP
INT_EN_TRANS
INT_EN_LNDPRT
INT_EN_PULSE
INT_EN_FF_MT
INT_EN_DRDY
Description
Interrupt Enable. Default value: 0.
0: Auto-SLEEP/WAKE interrupt disabled; 1: Auto-SLEEP/WAKE interrupt enabled.
Interrupt Enable. Default value: 0.
0: Transient interrupt disabled; 1: Transient interrupt enabled.
Interrupt Enable. Default value: 0.
0: Orientation (Landscape/Portrait) interrupt disabled.
1: Orientation (Landscape/Portrait) interrupt enabled.
Interrupt Enable. Default value: 0.
0: Pulse Detection interrupt disabled; 1: Pulse Detection interrupt enabled
Interrupt Enable. Default value: 0.
0: Freefall/Motion interrupt disabled; 1: Freefall/Motion interrupt enabled
Interrupt Enable. Default value: 0.
0: Data Ready interrupt disabled; 1: Data Ready interrupt enabled
The corresponding functional block interrupt enable bit allows the functional block to route its event detection flags to the
system’s interrupt controller. The interrupt controller routes the enabled functional block interrupt to the INT1 or INT2 pin.
MMA8453Q
Sensors
Freescale Semiconductor, Inc.
39
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