MMA8653FC datasheet(46/56 Pages) FREESCALE

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MMA8653FC

Sensors

Freescale Semiconductor, Inc.

6.8.5

0x2E: CTRL_REG5, Interrupt Configuration Register (Read/Write)

This register maps the desired interrupts to INT2 or INT1.

Figure 42. 0x2E: CTRL_REG5, Interrupt Configuration Register

The system’s interrupt controller shown in Figure 10 "System interrupt generation" uses the corresponding bit field in the

CTRL_REG5 register to determine the routing table for the INT1 and INT2 interrupt pins. If the bit value is logic ‘0’ the functional

block’s interrupt is routed to INT2, and if the bit value is logic ‘1’ then the interrupt is routed to INT1. One or more functions can

assert an interrupt pin; therefore a host application responding to an interrupt should read the INT_SOURCE (0x0C) register to

determine the appropriate sources of the interrupt.

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

INT_CFG_ASL

—

INT_CFG_LNDP

—

INT_CFG_FF_M

INT_CFG_DRD

Table 41. CTRL_REG5 register

Field

Description

INT_CFG_ASLP

Auto-SLEEP/WAKE INT1/INT2 Configuration

0 Interrupt is routed to INT2 pin (default)

1 Interrupt is routed to INT1 pin

INT_CFG_LNDPRT

Orientation INT1/INT2 Configuration

INT_CFG_FF_MT

Freefall/motion INT1/INT2 Configuration

INT_CFG_DRDY

Data Ready INT1/INT2 Configuration

MMA8653FC Datasheet(PDF) 46 Page - Freescale Semiconductor, Inc