收藏本站
3.1.11
Device Status Register (DEVSTAT)
The device status register is a read-only register. A read of this register clears the status flags affected by transient conditions.
Reference Section 4.5 for details on the response for each status condition.
Table 19. Device Status Register
Location
Bit
Address
$14
Register
DEVSTAT
7
UNUSED
6
IDE
5
UNUSED
4
DEVINIT
3
MISOERR
2
0
1
OFFSET
0
DEVRES
3.1.11.1 Unused Bits (UNUSED)
The unused bits have no impact on operation or performance. When read these bits may be ‘1’ or ‘0’.
3.1.11.2 Internal Data Error Flag (IDE)
The internal data error flag is set if a customer or OTP register data CRC fault or other internal fault is detected as defined in
Section 4.5.5 . The internal data error flag is cleared by a read of the DEVSTAT register. If the error is associated with a CRC fault
in the writable register array, the fault will be re-asserted and will require a device reset to clear. If the error is associated with the
data stored in the fuse array, the fault will be re-asserted even after a device reset.
3.1.11.3 Device Initialization Flag (DEVINIT)
The device initialization flag is set during the interval between negation of internal reset and completion of internal device ini-
tialization. DEVINIT is cleared automatically. The device initialization flag is not affected by a read of the DEVSTAT register.
3.1.11.4 SPI MISO Data Mismatch Error Flag (MISOERR)
The MISO data mismatch flag is set when a MISO Data mismatch fault occurs as specified in Section 4.5.2 . The MISOERR
flag is cleared by a read of the DEVSTAT register.
3.1.11.5 Offset Monitor Error Flags (OFFSET)
The offset monitor error flag is set if the acceleration signal reaches the specified offset limit. The offset monitor error flags are
cleared by a read of the DEVSTAT register.
3.1.11.6 Device Reset Flag (DEVRES)
The device reset flag is set during device initialization following a device reset. The device reset flag is cleared by a read of
the DEVSTAT register.
3.1.12
Count Register (COUNT)
The count register is a read-only register which provides the current value of a free-running 8-bit counter derived from the pri-
mary oscillator. A 10-bit pre-scaler divides the primary oscillator frequency by 1024. Thus, the value in the register increases by
one count every 128 μ s and the counter rolls over every 32.768 ms.
Table 20. Count Register
Location
Bit
Address
$15
Register
COUNT
7
COUNT[7]
6
COUNT[6]
5
COUNT[5]
4
COUNT[4]
3
COUNT[3]
2
COUNT[2]
1
COUNT[1]
0
COUNT[0]
Reset Value
0
0
0
0
0
0
0
0
MMA655x
Sensor
Freescale Semiconductor, Inc.
19
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
MMA6826AKW IC ACCELEROMETER XY AXIS 16QFN
MMA6854KW IC ACCELEROMETER X AXIS 16QFN
MMA7331LR2 ACCELEROMETER 4G XYZ ENH 14-LGA
MMA8451QT IC ACCELEROMETER 3AXIS 16QFN
MMA8452QR1 IC ACCELER 2G/4G/8G 3AXIS 16QFN
MMA8453QR1 IC ACCELER 2G/4G/8G 3AXIS 16QFN
MMBF0201NLT1 MOSFET N-CH 20V 300MA SOT-23
MMBF170-7 MOSFET N-CH 60V 500MA SOT23-3
相关代理商/技术参数
MMA6556KWR2 功能描述:加速计 - 板上安装 X-AXIS 120G 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
MMA65XX 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Dual-Axis SPI Inertial Sensor
MMA6700AEGR2 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:High Accuracy Low g Inertial Sensor MEMS Sensing, State Machine ASIC
MMA6700EG 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:High Accuracy Low g Inertial Sensor MEMS Sensing, State Machine ASIC
MMA6700EGR2 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:High Accuracy Low g Inertial Sensor MEMS Sensing, State Machine ASIC
MMA6701AEGR2 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:High Accuracy Low g Inertial Sensor MEMS Sensing, State Machine ASIC
MMA6701EG 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:High Accuracy Low g Inertial Sensor MEMS Sensing, State Machine ASIC
MMA6701EGR2 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:High Accuracy Low g Inertial Sensor MEMS Sensing, State Machine ASIC