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BMA220 Datasheet(PDF) 9 Page - Bosch Sensortec GmbH |
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BMA220 Datasheet(HTML) 9 Page - Bosch Sensortec GmbH |
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9 / 60 page  BMA220 Data sheet Bosch Sensortec Rev. 1.10 Page 9 13 April 2011 © Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. Note: Specifications within this document are subject to change without notice. Document is not intended for publication. 4 Global memory map The memory map below shows all externally accessible data registers which are needed to operate BMA220.The left columns show the memory addresses. The columns in the middle depict the content of each register bit. The colors of the bits indicate whether they are read-only, write-only or read- and writable. The memory is volatile so that the writable content has to be re- written after each power-on. The extended address space greater than 0x19 (SPI) / 0x32 (I2C) is not shown. These registers are reserved for further Bosch factory testing and trimming. Register Address (I²C) Register Address (SPI) bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 default after power-up 0x32 0x19 0x00 0x30 0x18 0x00 0x2E 0x17 WDT_TO_en WDT_TO_sel SPI3 0x00 0x2C 0x16 0x00 0x2A 0x15 0x00 0x28 0x14 0x00 0x26 0x13 0x00 0x24 0x12 0x10 0x22 0x11 sbist_sign 0x00 0x20 0x10 serial_high_bw 0x00 0x1E 0x0F unused sleep_en en_x_channel en_y_channel en_z_channel 0x07 0x1C 0x0E reset_int en_low en_high_x en_high_y en_high_z 0x00 0x1A 0x0D en_data en_orient en_slope_x en_slope_y en_slope_z en_tt_x en_tt_y en_tt_z 0x00 0x18 0x0C tt_int low_int high_int data_int slope_int 0x00 0x16 0x0B orient_int int_first_x int_first_y int_first_z int_sign 0x00 0x14 0x0A tip_en 0x08 0x12 0x09 orient_ex slope_filt 0x45 0x10 0x08 tt_filt 0xB5 0xE 0x07 0x7F 0xC 0x06 0x4E 0xA 0x05 0x7F 0x8 0x04 0 0 0x00 0x6 0x03 0 0 0x00 0x4 0x02 0 0 0x00 0x2 0x01 0x00 0x0 0x00 0xDD Chip ID tt_samp[1:0] slope_th[3:0] slope_dur[1:0] tt_th[3:0] tt_dur[2:0] acc_z<5:0> acc_y<5:0> acc_x<5:0> Revision ID low_th[3:0] high_th[3:0] high_hy[1:0] high_dur[5:0] low_hy[1:0] low_dur[5:0] orient_blocking [1:0] unused lat_int[2:0] unused orient[2:0] sbist (off,x,y,z) filt_config[3:0] unused unused range[1:0] sleep_dur[2:0] reserved reserved reserved reserved softreset suspend unused reserved Figure 2: Memory map Note: From SPI I²C use burst address increment in 0x02h steps. |
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