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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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MMA8451 Datenblatt(PDF) 18 Page - Freescale Semiconductor, Inc |
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MMA8451 Datenblatt(HTML) 18 Page - Freescale Semiconductor, Inc |
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18 / 47 page  MMA8452Q Sensors 18 Freescale Semiconductor, Inc. 6 Register Descriptions Table 11. Register Address Map Name Type Register Address Auto-Increment Address Default Hex Value Comment F_READ=0 F_READ=1 STATUS(1)(2) R 0x00 0x01 00000000 0x00 Real time status OUT_X_MSB(1)(2) R 0x01 0x02 0x03 Output — [7:0] are 8 MSBs of 12-bit sample. OUT_X_LSB(1)(2) R 0x02 0x03 0x00 Output — [7:4] are 4 LSBs of 12-bit sample. OUT_Y_MSB(1)(2) R 0x03 0x04 0x05 Output — [7:0] are 8 MSBs of 12-bit sample. OUT_Y_LSB(1)(2) R 0x04 0x05 0x00 Output — [7:4] are 4 LSBs of 12-bit sample. OUT_Z_MSB(1)(2) R 0x05 0x06 0x00 Output — [7:0] are 8 MSBs of 12-bit sample. OUT_Z_LSB(1)(2) R 0x06 0x00 Output — [7:4] are 4 LSBs of 12-bit sample. Reserved R 0x07 — — — Reserved. Read return 0x00. Reserved R 0x08 — — — Reserved. Read return 0x00. SYSMOD R 0x0B 0x0C 00000000 0x00 Current System Mode INT_SOURCE(1)(2) R 0x0C 0x0D 00000000 0x00 Interrupt status WHO_AM_I R 0x0D 0x0E 00101010 0x2A Device ID (0x2A) XYZ_DATA_CFG(3)(4) R/W 0x0E 0x0F 00000000 0x00 HPF Data Out and Dynamic Range Settings HP_FILTER_CUTOFF(3)(4) R/W 0x0F 0x10 00000000 0x00 Cutoff frequency is set to 16 Hz @ 800 Hz PL_STATUS(1)(2) R 0x10 0x11 00000000 0x00 Landscape/Portrait orientation status PL_CFG(3)(4) R/W 0x11 0x12 10000000 0x80 Landscape/Portrait configuration. PL_COUNT(3)(4) R 0x12 0x13 00000000 0x00 Landscape/Portrait debounce counter PL_BF_ZCOMP(3)(4) R 0x13 0x14 01000100 0x44 Back-Front, Z-Lock Trip threshold P_L_THS_REG(3)(4) R 0x14 0x15 10000100 0x84 Portrait to Landscape Trip Angle is 29° FF_MT_CFG(3)(4) R/W 0x15 0x16 00000000 0x00 Freefall/Motion functional block configuration FF_MT_SRC(1)(2) R 0x16 0x17 00000000 0x00 Freefall/Motion event source register FF_MT_THS(3)(4) R/W 0x17 0x18 00000000 0x00 Freefall/Motion threshold register FF_MT_COUNT(3)(4) R/W 0x18 0x19 00000000 0x00 Freefall/Motion debounce counter Reserved R 0x19 - 0x1C — — — Reserved. Read return 0x00. TRANSIENT_CFG R/W 0x1D 0x1E 00000000 0x00 Transient functional block configuration TRANSIENT_SRC(1)(2) R 0x1E 0x1F 00000000 0x00 Transient event status register TRANSIENT_THS(3)(4) R/W 0x1F 0x20 00000000 0x00 Transient event threshold TRANSIENT_COUNT(3)(4) R/W 0x20 0x21 00000000 0x00 Transient debounce counter PULSE_CFG(3)(4) R/W 0x21 0x22 00000000 0x00 ELE, Double_XYZ or Single_XYZ PULSE_SRC(1)(2) R 0x22 0x23 00000000 0x00 EA, Double_XYZ or Single_XYZ PULSE_THSX(3)(4) R/W 0x23 0x24 00000000 0x00 X pulse threshold PULSE_THSY(3)(4) R/W 0x24 0x25 00000000 0x00 Y pulse threshold PULSE_THSZ(3)(4) R/W 0x25 0x26 00000000 0x00 Z pulse threshold PULSE_TMLT(3)(4) R/W 0x26 0x27 00000000 0x00 Time limit for pulse PULSE_LTCY(3)(4) R/W 0x27 0x28 00000000 0x00 Latency time for 2nd pulse |
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