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MMA6519KW 数据表(PDF) 47 Page - Freescale Semiconductor, Inc |
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MMA6519KW 数据表(HTML) 47 Page - Freescale Semiconductor, Inc |
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47 / 56 page ![]() Sensor Freescale Semiconductor, Inc. 47 MMA65xx 4.2 SPI Response Format Table 30. SPI Response Message Summary MSB LSB 15 14 13 12 11 10 9876 543210 CMD A AX Response to Valid Acceleration Request Reference D15 D14 AX P D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 D1 D0 Acceleration D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 AX = Axis Requested 0 X-Axis Acceleration Response 1 Y-Axis Acceleration Response P = Odd Parity S[1:0] = Device Status 0 0 In Initialization (ENDINIT = ‘0’) 0 1 Normal Request 10 ST Active 1 1 Internal Error Present / SPI Error CMD A AX D1 D0 AX P S1 S0 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 Reference Valid Accel Request 1 0 Accel Data 0 P 0 1 X- Axis Acceleration Data Section 4.3 1 0 Accel Data 0 P 1 0 X- Axis Self Test Active Acceleration Data 1 0 Accel Data 0 P 0 0 X- Axis Acceleration Data, Initialization in Process (ENDINIT=’0’) 1 1 Accel Data 1 P 0 1 Y-Axis Acceleration Data 1 1 Accel Data 1 P 1 0 Y-Axis Self Test Active Acceleration Data 1 1 Accel Data 1 P 0 0 Y- Axis Acceleration Data, Initialization in Process (ENDINIT=’0’) MSB LSB 15 14 13 12 11 10 9876 543210 CMD A AX Response to Valid Register Access Reference D15 D14 AX P D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Register Write 0 1001 P 1110 D7 D6 D5 D4 D3 D2 D1 D0 Section 4.4.1 New Contents of Register Register Read 0 0010 P 1110 D7 D6 D5 D4 D3 D2 D1 D0 Section 4.4.2 Contents of Register MSB LSB 15 14 13 12 11 10 9876 543210 CMD A AX Error Responses Reference D15 D14 AX P D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Invalid Accel Request xx 0 0 AX P 110000 000000 Section 4.3 Internal Error Present xx Section 4.5.5 MISO Error xx 0 0 0 P 110000 000000 Section 4.5.2 SPI Error xx Section 4.5.1 Invalid Register Request 0 x 0 0 00111000 000000 Section 4.4 Self Test Error 0 x 0 0 AX P 110000 000000 Section 4.5.5 |
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