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MMA8652FCR1 データシート(PDF) 27 Page - Freescale Semiconductor, Inc |
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MMA8652FCR1 データシート(HTML) 27 Page - Freescale Semiconductor, Inc |
27 / 77 page MMA8652FC Sensors Freescale Semiconductor, Inc. 27 6.4.2 0x01: OUT_X_MSB, Accelerometer X-axis Data register 6.4.3 0x02: OUT_X_LSB, Accelerometer X-axis Data register 6.4.4 0x03: OUT_Y_MSB, Accelerometer Y-axis Data register 6.4.5 0x04: OUT_Y_LSB, Accelerometer Y-axis Data register 6.4.6 0x05: OUT_Z_MSB, Accelerometer Z-axis Data register 6.4.7 0x06: OUT_Z_LSB, Accelerometer Z-axis Data register These registers contain the X-axis, Y-axis, and Z-axis12-bit output sample data (expressed as 2's complement numbers). NOTE: – If the FIFO data output register driver is disabled, then the sample data output registers store the current sample data. – If the FIFO data output register driver is enabled (F_MODE > 00), then the sample data output registers point to the head of the FIFO buffer (Register 0x01 X_MSB), which contains the previous 32 X, Y, and Z data samples. Register quick jump table Register quick jump table Register quick jump table Register quick jump table Register quick jump table Register quick jump table • OUT_X_MSB, OUT_X_LSB, OUT_Y_MSB, OUT_Y_LSB, OUT_Z_MSB, and OUT_Z_LSB are stored in the auto- incrementing address range of 0x01 – 0x06, to reduce reading the status followed by 12-bit axis data to 7 bytes. If the F_READ bit is set (0x2A bit 1), then auto-increment will skip over LSB registers (to access the MSB data only). This will shorten the data acquisition from 7 bytes to 4 bytes. • The LSB registers can only be read immediately following the read access of the corresponding MSB register. — A random read access to the LSB registers is not possible. Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 XD11 XD10 XD9 XD8 XD7 XD6 XD5 XD4 Figure 16. 0x01 OUT_X_MSB: X_MSB register (Read-Only) Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 XD3 XD2 XD1 XD0 0 0 0 0 Figure 17. 0x02 OUT_X_LSB: X_LSB register (Read-Only) Bit 7 Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0 YD11 YD10 YD9 YD8 YD7 YD6 YD5 YD4 Figure 18. 0x03 OUT_Y_MSB: Y_MSB register (Read-Only) Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 YD3 YD2 YD1 YD0 0 0 0 0 Figure 19. 0x04 OUT_Y_LSB: Y_LSB register (Read-Only) Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 ZD11 ZD10 ZD9 ZD8 ZD7 ZD6 ZD5 ZD4 Figure 20. 0x05 OUT_Z_MSB: Z_MSB register (Read-Only) Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 ZD3 ZD2 ZD1 ZD0 0 0 0 0 Figure 21. 0x06 OUT_Z_LSB: Z_LSB register (Read-Only) |
同様の部品番号 - MMA8652FCR1 |
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