收藏本站
5.9
Interrupt Register Configurations
There are six configurable interrupts in the MMA8453Q. These are Data Ready, Motion/Freefall, Tap (Pulse), Orientation,
Transient, and Auto-SLEEP events. These six interrupt sources can be routed to one of two interrupt pins. The interrupt source
must be enabled and configured. If the event flag is asserted because the event condition is detected, the corresponding interrupt
pin, INT1 or INT2, will assert.
Data Ready
Motion/Freefall
Tap (Pulse)
INTERRUPT
INT1
CONTROLLER
Orientation
INT2
Transient
Auto-SLEEP
6
INT ENABLE
6
INT CFG
Figure 10. System Interrupt Generation Block Diagram
5.10
Serial
I 2 C
Interface
Acceleration data may be accessed through an I 2 C interface thus making the device particularly suitable for direct interfacing
with a microcontroller. The MMA8453Q features an interrupt signal which indicates when a new set of measured acceleration
data is available thus simplifying data synchronization in the digital system that uses the device. The MMA8453Q may also be
configured to generate other interrupt signals accordingly to the programmable embedded functions of the device for Motion,
Freefall, Transient, Orientation, and Tap.
The registers embedded inside the MMA8453Q are accessed through the I 2 C serial interface ( Table 9 ). To enable the I 2 C
interface, VDDIO line must be tied high (i.e., to the interface supply voltage). If VDD is not present and VDDIO is present, the
MMA8453Q is in off mode and communications on the I 2 C interface are ignored. The I 2 C interface may be used for
communications between other I 2 C devices and the MMA8453Q does not affect the I 2 C bus.
Table 9. Serial Interface Pin Description
Pin Name
Pin Description
SCL
I
2 C
Serial Clock
I C Serial Data
SDA
SA0
2
I 2 C least significant bit of the device address
There are two signals associated with the I 2 C bus; the Serial Clock Line (SCL) and the Serial Data line (SDA). The latter is a
bidirectional line used for sending and receiving the data to/from the interface. External pullup resistors connected to VDDIO are
expected for SDA and SCL. When the bus is free both the lines are high. The I 2 C interface is compliant with Fast mode (400 kHz),
and Normal mode (100 kHz) I 2 C standards ( Table 4 ).
MMA8453Q
Sensors
Freescale Semiconductor, Inc.
15
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
MMBF0201NLT1 MOSFET N-CH 20V 300MA SOT-23
MMBF170-7 MOSFET N-CH 60V 500MA SOT23-3
MMBF170LT1 MOSFET N-CH 60V 500MA SOT-23
MMBF170 MOSFET N-CH 60V 500MA SOT-23
MMBF2201NT1 MOSFET N-CH 20V 300MA SOT-323
MMBF2202PT1 MOSFET P-CH 20V 300MA SOT-323
MMDF1N05ER2G MOSFET N-CHAN DUAL 2A 50V 8SOIC
MMDF2C03HDR2G MOSFET N/P-CHAN 2A 30V 8SOIC
相关代理商/技术参数
MMA8453QT 功能描述:加速计 - 板上安装 LOW G 3-AXIS DGTL ACCEL RoHS:否 制造商:Murata 传感轴:Double 加速:12 g 灵敏度: 封装 / 箱体: 输出类型:Analog 数字输出 - 位数:11 bit 电源电压-最大:5.25 V 电源电压-最小:4.75 V 电源电流:4 mA 最大工作温度:+ 125 C 最小工作温度:- 40 C
MMA8491Q 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Xtrinsic MMA8491Q 3-Axis Multifunction Digital Accelerometer
MMA8491QR1 功能描述:加速计 - 板上安装 3-Axis Low Voltage Discrete Tilt Sensor RoHS:否 制造商:Murata 传感轴:Double 加速:12 g 灵敏度: 封装 / 箱体: 输出类型:Analog 数字输出 - 位数:11 bit 电源电压-最大:5.25 V 电源电压-最小:4.75 V 电源电流:4 mA 最大工作温度:+ 125 C 最小工作温度:- 40 C
MMA8491QT 功能描述:加速计 - 板上安装 3-Axis Low Voltage Discrete Tilt Sensor RoHS:否 制造商:Murata 传感轴:Double 加速:12 g 灵敏度: 封装 / 箱体: 输出类型:Analog 数字输出 - 位数:11 bit 电源电压-最大:5.25 V 电源电压-最小:4.75 V 电源电流:4 mA 最大工作温度:+ 125 C 最小工作温度:- 40 C
MMA8652FC 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Xtrinsic MMA8652FC 3-Axis, 12-bit Digital Accelerometer
MMA8652FCR1 功能描述:加速计 - 板上安装 3-axis 2g/4g/8g 12 bit RoHS:否 制造商:Murata 传感轴:Double 加速:12 g 灵敏度: 封装 / 箱体: 输出类型:Analog 数字输出 - 位数:11 bit 电源电压-最大:5.25 V 电源电压-最小:4.75 V 电源电流:4 mA 最大工作温度:+ 125 C 最小工作温度:- 40 C
MMA8653FC 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Xtrinsic MMA8653FC 3-Axis, 10-bit Digital Accelerometer
MMA8653FCR1 功能描述:加速计 - 板上安装 3-axis 2g/4g/8g 10 bit RoHS:否 制造商:Murata 传感轴:Double 加速:12 g 灵敏度: 封装 / 箱体: 输出类型:Analog 数字输出 - 位数:11 bit 电源电压-最大:5.25 V 电源电压-最小:4.75 V 电源电流:4 mA 最大工作温度:+ 125 C 最小工作温度:- 40 C