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SCA3000-D01 データシート(PDF) 23 Page - VTI technologies |
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SCA3000-D01 データシート(HTML) 23 Page - VTI technologies |
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23 / 43 page  SCA3000 Series VTI Technologies Oy 23/ 43 www.vti.fi Doc.Nr. 8257300A.07 Rev.A.07 Address value: 01011 Register name: OUT_CTRL, Output configuration (Indirect access via CTRL_SEL) Bits Initial Value Name Description 7:5 Reserved 4 1 BUF_X_EN Store X-axis acceleration data to ring buffer 1 – enabled 0 – disabled 3 1 BUF_Y_EN Store Y-axis acceleration data to ring buffer 1 – enabled 0 – disabled 2 1 BUF_Z_EN Store Z-axis acceleration data to ring buffer 1 – enabled 0 – disabled 1:0 00 BUF_RATE Additional data rate reduction after calibration before data is loaded to ring buffer (no effect on output registers data rate, see section 2.5.1) 11 – No rate reduction 10 – divide rate by 4 01 – divide rate by 2 00 – No rate reduction Address: 1Eh Register name: UNLOCK, Unlock register lock Bits Mode Initial Value Name Description 7:0 RW 00h KEY Lock can be opened by writing the following sequence into this register: 00h, 50h, A0h Writing any other sequence closes the lock. Lock state can be read from STATUS register. Address: 21h Register name: INT_MASK, HW interrupt mask register configures the operation of the INT pin. Bits Mode Initial Value Name Description 7 RW 0 BUF_F_EN Interrupt when output ring buffer is ¾ full 1 – Enabled 0 – Disabled 6 RW 1 BUF_H_EN Interrupt when output ring buffer is ½ full 1 – Enabled 0 – Disabled 5:2 Reserved 1 RW 0 INT_ALL Mask all interrupts (only effects on the INT-pin) 1 – Mask all interrupts (including free fall detection and motion detector) 0 – Mask interrupts according to configured mode 0 RW 1 INT_ACT INT-pin signal activity 1 – INT active high (INT-pin high) 0 – INT active low (INT-pin low) Address: 22h Register name: CTRL_DATA, Control register data, UNLOCK REQUIRED Bits Mode Initial Value Name Description 7:0 RW 00h DATA Data bits [7:0] of selected 8-bit control register. Write this register to actually perform the write operation to selected location. See register CTRL_SEL for information on register contents. |
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