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ADIS16488A Datasheet(PDF) 19 Page - Analog Devices |
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ADIS16488A Datasheet(HTML) 19 Page - Analog Devices |
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19 / 35 page  Product Overview Online Documentation Design Resources Discussion Sample & Buy Data Sheet ADIS16488A Rev. C | Page 19 of 35 The DIAG_STS register in Table 49 providesthe flags for the internal self test function, which is from GLOB_CMD[1](see Table 115). Note that the flag of the barometer, DIAG_STS[11], updatesonlyafter start-upandresetoperationsand thatreading the DIAG_STS registercausesall of its bits to restoreto 0. The bits only return to 1 if the error condition persists. Table 49. DIAG_STS (Page 0, Base Address = 0x0A) Bits Description (Default = 0x0000) [15:12] Not used 11 Self test failure, barometer (1 = failed at start-up) 10 Self test failure, z-axis magnetometer (1 = failure) 9 Self test failure, y-axis magnetometer (1 = failure) 8 Self test failure, x-axis magnetometer (1 = failure) [7:6] Not used 5 Self test failure, z-axis accelerometer (1 = failure) 4 Self test failure, y-axis accelerometer (1 = failure) 3 Self test failure, x-axis accelerometer (1 = failure) 2 Self test failure, z-axis gyroscope (1 = failure) 1 Self test failure, y-axis gyroscope (1 = failure) 0 Self test failure, x-axis gyroscope (1 = failure) The ALM_STS registerin Table 50 provides the alarmbits for the programmablealarmlevels of eachsensor. Notethat reading the ALM_STS register causes all of its bits to restore to 0. The bits only return to 1 if the error condition persists. Table 50. ALM_STS (Page 0, Base Address = 0x0C) Bits Description (Default = 0x0000) [15:12] Not used 11 Barometer alarm flag (1 = alarm is active) 10 Z-axis magnetometer alarm flag(1 = alarm is active) 9 Y-axis magnetometer alarm flag (1 = alarm is active) 8 X-axis magnetometer alarm flag (1 = alarm is active) [7:6] Not used 5 Z-axis accelerometer alarm flag (1 = alarm is active) 4 Y-axis accelerometer alarm flag (1 = alarm is active) 3 X-axis accelerometer alarm flag (1 = alarm is active) 2 Z-axis gyroscope alarm flag (1 = alarm is active) 1 Y-axis gyroscope alarm flag (1 = alarm is active) 0 X-axis gyroscope alarm flag(1 = alarm is active) FIRMWARE REVISION The FIRM_REV register (see Table 51)provides the firmware revision for the internal firmware.This register uses a binary coded decimal (BCD)format, whereeach nibble representsa digit. For example, if FIRM_REV = 0x1234, the firmware revision is 12.34. The tens digit is equal to 1, the ones digit is equal to 2, the tenths digit is equal to 3, and the hundredths digit is equal to 4. Table 51. FIRM_REV (Page 3, Base Address = 0x78) Bits Description [15:12] Firmware revision BCD code, tens digit Numerical format = 4-bit binary, range = 0 to 9 [11:8] Firmware revision BCD code, ones digit Numerical format = 4-bit binary, range = 0 to 9 [7:4] Firmware revision BCD code, tenths digit Numerical format = 4-bit binary, range = 0 to 9 [3:0] Firmware revision BCD code, hundredths digit Numerical format = 4-bit binary, range = 0 to 9 The FIRM_DM register(see Table52)contains the month and day of the factory configuration date. FIRM_DM[15:12]and FIRM_DM[11:8]contain digits that represent the month of the factory configuration in a BCD format. For example, November is the 11th month in a year and is representedby FIRM_DM[15:8]= 0x11. FIRM_DM[7:4]and FIRM_DM[3:0]contain digits that represent the day of factory configuration in a BCD format. For example, the 27th day of themonthis representedbyFIRM_DM[7:0]= 0x27. Table 52. FIRM_DM(Page3, Base Address = 0x7A) Bits Description [15:12] Factory configurationmonth BCD code, tens digit, numerical format = 4-bit binary, range = 0 to 2 [11:8] Factory configurationmonth BCD code, ones digit, numerical format = 4-bit binary, range = 0 to 9 [7:4] Factory configurationday BCD code, tens digit Numerical format = 4-bit binary, range = 0 to 3 [3:0] Factory configurationday BCD code, ones digit Numerical format = 4-bit binary, range = 0 to 9 The FIRM_Y register (see Table 53)contains the year of the factory configuration date. For example, the year, 2013, is represented by FIRM_Y = 0x2013. Table 53. FIRM_Y(Page 3, Base Address = 0x7C) Bits Description [15:12] Factory configurationyear BCD code, thousands digit, numerical format = 4-bit binary, range = 0 to 9 [11:8] Factory configurationyear BCD code, hundredsdigit, numerical format = 4-bit binary, range = 0 to 9 [7:4] Factory configurationyear BCD code, tens digit, numerical format = 4-bit binary, range = 0 to 3 [3:0] Factory configurationyear BCD code, ones digit, numerical format = 4-bit binary, range = 0 to 9 |
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