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ADIS16489 Datasheet(PDF) 33 Page - Analog Devices |
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ADIS16489 Datasheet(HTML) 33 Page - Analog Devices |
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33 / 40 page  Data Sheet ADIS16489 Rev. B | Page 33 of 40 Table 174. ALM_CNFG_2 Bits Description [15:8] Not used 7 Barometer alarm (1 = enabled) 6 Not used 5 Barometer alarm polarity (1 = greater than) 4 Barometer dynamic enable (1 = enabled) [3:0] Not used X-AXIS GYROSCOPE ALARM (XG_ALM_MAGN) Table 175. XG_ALM_MAGN Register Definitions Page Addresses Default Access Flash Backup 0x03 0x28, 0x29 0x0000 R/W Yes Table 176. XG_ALM_MAGN Bit Definitions Bits Description [15:0] X-axis gyroscope alarm threshold settings, twos complement, 0°/sec = 0x0000, 1 LSB = 0.02°/sec The XG_ALM_MAGN register (see Table 175 and Table 176) contains the alarm threshold for the x-axis gyroscope, when ALM_CNFG_0[3] = 1 (see Table 170). This alarm is associated with the alarm flag in ALM_STS[0] (see Table 20). Alarm Example Table 177 provides a list of commands that configure the x-axis gyroscopes alarm to be active (ALM_STS[0] = 1) when the rate of rotation around the x-axis exceeds 100°/sec. The value for the XG_ALM_MAGN register is 0x1388, as follows: 100°/sec ÷ 0.02°/sec/LSB = 5000 LSB = 0x1388 Table 177. Configuration Commands, Alarm Example DIN Description 0x8003 Turn to page 3 0xA888 XG_ALM_MAGN[7:0] = 0x88 0xA913 XG_ALM_MAGN[15:8] = 0x13 0xA00C ALM_CNFG_1[7:0] = 0x0C 0xA100 ALM_CNFG_1[15:8] = 0x00 Y-AXIS GYROSCOPE ALARM (YG_ALM_MAGN) Table 178. YG_ALM_MAGN Register Definitions Page Addresses Default Access Flash Backup 0x03 0x2A, 0x2B 0x0000 R/W Yes Table 179. YG_ALM_MAGN Bit Definitions Bits Description [15:0] Y-axis gyroscope alarm threshold settings, twos complement, 0°/sec = 0x0000, 1 LSB = 0.02°/sec The YG_ALM_MAGN register (see Table 178 and Table 179) contains the alarm threshold for the y-axis gyroscope, when ALM_CNFG_0[7] = 1 (see Table 170). This alarm is associated with the alarm flag in ALM_STS[1] (see Table 20). Z-AXIS GYROSCOPE ALARM (ZG_ALM_MAGN) Table 180. ZG_ALM_MAGN Register Definitions Page Addresses Default Access Flash Backup 0x03 0x2C, 0x2D 0x0000 R/W Yes Table 181. ZG_ALM_MAGN Bit Definitions Bits Description [15:0] Z-axis gyroscope alarm threshold settings, twos complement, 0°/sec = 0x0000, 1 LSB = 0.02°/sec The ZG_ALM_MAGN register (see Table 180 and Table 181) contains the alarm threshold for the z-axis gyroscope, when ALM_CNFG_0[11] = 1 (see Table 170). This alarm is associated with the alarm flag in ALM_STS[2] (see Table 20). X-AXIS ACCELEROMETER ALARM (XA_ALM_MAGN) Table 182. XA_ALM_MAGN Register Definitions Page Addresses Default Access Flash Backup 0x03 0x2E, 0x2F 0x0000 R/W Yes Table 183. XA_ALM_MAGN Bit Definitions Bits Description [15:0] X-axis accelerometer alarm threshold settings, twos complement, 0 g = 0x0000, 1 LSB = 0.25 mg The XA_ALM_MAGN register (see Table 182 and Table 183) contains the alarm threshold for the x-axis accelerometer, when ALM_CNFG_0[15] = 1 (see Table 170). This alarm is associated with the alarm flag in ALM_STS[3] (see Table 20). Y-AXIS ACCELEROMETER ALARM (YA_ALM_MAGN) Table 184. YA_ALM_MAGN Register Definitions Page Addresses Default Access Flash Backup 0x03 0x30, 0x31 0x0000 R/W Yes Table 185. YA_ALM_MAGN Bit Definitions Bits Description [15:0] Y-axis accelerometer alarm threshold settings, twos complement, 0 g = 0x0000, 1 LSB = 0.25 mg The YA_ALM_MAGN register (see Table 184 and Table 185) contains the alarm threshold for the y-axis accelerometer, when ALM_CNFG_1[3] = 1 (see Table 172). This alarm is associated with the alarm flag in ALM_STS[4] (see Table 20). |
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