ADXRS453 Analog Devices, ADXRS453 Datasheet - Page 24

• Manufacturer Part Number: ADXRS453
• Description: High Performance / Digital Output Gyroscope
• Manufacturer: Analog Devices

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MSB
D15
QAD15 QAD14 QAD13 QAD12 QAD11 QAD10 QAD9
D7
QAD
ADXRS453
Quad Memory (QUADx) Registers
Addresses:
Register update rate:
Scale factor:
The QUADx registers contain a value corresponding to the amount
of quadrature error present in the device at a given time. Quadra-
ture can be likened to a measurement of the error of the motion
of the resonator structure and can be caused by stresses and aging
effects. The quadrature data is filtered to f
be read frequently to detect sudden shifts in the level of quadrature.
The data is presented as a 16-bit, twos complement number.
Fault (FAULTx) Registers
Addresses:
Register update rate:
Scale factor:
The FAULTx registers contain the state of the error flags in the
device. The FAULT0 register is appended to the end of every
device data transmission (see Table 10); however, this register
can also be accessed independently through its memory location.
The individual fault bits are updated asynchronously, requiring
<5 μs to activate, as soon as the fault condition exists on chip. When
toggled, each fault bit remains active until the fault register is read
or a sensor data command is received. If the fault is still active
after the bit is read, the fault bit is immediately reasserted.
MSB
D15
D7
PLL
7
D14
D6
QAD6
D14
D6
Q
Unused
D13
D5
QAD5
D13
D5
NVM
D12
D4
QAD4
0x08 (QUAD1)
0x09 (QUAD0)
f
80 LSB/°/sec equivalent
0x0A (FAULT1)
0x0B (FAULT0)
Not applicable
Not applicable
D12
D4
POR
0
/64 (~240 Hz)
D11
D3
QAD3
D11
Fail
D3
PWR
0
/200 (~77.5 Hz) and can
D10
D2
QAD2
D10
AMP
D2
CST
D9
D1
QAD1
D9
OV
D1
CHK
LSB
D8
QAD8
D0
QAD0
LSB
D8
UV
D0
0
Rev. 0 | Page 24 of 32
MSB
D15
PIDB15 PIDB14 PIDB13 PIDB12 PIDB11 PIDB10 PIDB9
D7
PIDB7
MSB
D31
SNB31 SNB30 SNB29 SNB28 SNB27 SNB26 SNB25 SNB24
D23
SNB23 SNB22 SNB21 SNB20 SNB19 SNB18 SNB17 SNB16
D15
SNB15 SNB14 SNB13 SNB12 SNB11 SNB10 SNB9
D7
SNB7
Part ID (PIDx) Registers
Addresses:
Register update rate:
Scale factor:
The (PIDx) registers contain a 16-bit number that identifies the
version of the ADXRS453. Combined with the serial number, this
information allows for a higher degree of device individualization
and tracking. The initial product ID is R01 (0x5201), with sub-
sequent versions of silicon incrementing this value to R02, R03,
and so on.
Serial Number (SNx) Registers
Addresses:
Register update rate:
Scale factor:
The SNx registers contain a 32-bit identification number that
uniquely identifies the device. To read the entire serial number,
two memory read requests must be initiated. The first read
request to Address 0x0E returns the upper 16 bits of the serial
number, and the following read request to Address 0x10 returns
the lower 16 bits of the serial number.
D14
D6
PIDB6
D30
D22
D14
D6
SNB6
D13
D5
PIDB5
D29
D21
D13
D5
SNB5
D12
D4
PIDB4
D28
D20
D12
D4
SNB4
0x0C (PID1)
0x0D (PID0)
Not applicable
Not applicable
0x0E (SN3)
0x0F (SN2)
0x10 (SN1)
0x11 (SN0)
Not applicable
Not applicable
D11
D3
PIDB3
D27
D19
D11
D3
SNB3
D10
D2
PIDB2
D26
D18
D10
D2
SNB2
D9
D1
PIDB1
D25
D17
D9
D1
SNB1
LSB
D8
PIDB8
D0
PIDB0
LSB
D24
D16
D8
SNB8
D0
SNB0