Data Sheet
Table Of Contents
- 1 FH3D02 Overview
- 2 Characteristics
- 3 Package and Circuit Connection
- 4 SPI Communication
- 5 List of Registers
- 5.1 Measurement Register Contents
- 5.1.1 0x000B (read/write) – Measurement Control
- 5.1.2 0x000E (read/write) – Measurement Start
- 5.1.3 0x0107 (read only) – Status Register
- 5.1.4 0x0110 (read only) – Temperature Sensor
- 5.1.5 0x0111 (read only) – Bi0 Magnetic Field
- 5.1.6 0x0112 (read only) – Bi1 Magnetic Field
- 5.1.7 0x0113 (read only) – Bj0 Magnetic Field
- 5.1.8 0x0114 (read only) – Bj1 Magnetic Field
- 5.1.9 0x0120 (read only) – Magnetic Field Magnitude
- 5.1.10 0x0121 (read only) – Magnetic Field Angle
- 5.1.11 0x0122 (read only) – Linearized Angle / Bz1 Field (Special Function Mode)
- 5.1.12 0x0124 (read only) – Bz0 Magnetic Field (Special Function Mode)
- 5.2 Result Register Overview
- 5.1 Measurement Register Contents
- 6 Measurement Modes
- 6.1 Single Magnetic Probe
- 6.2 Dual Magnetic Probe
- 6.3 Linear Position or Off-Axis Angle Sensor (Absolute Field Values, Magnet On-Top)
- 6.4 Linear Position or Off-Axis Angle Sensor (Gradient Field Values, Magnet On-Top)
- 6.5 Linear Position or Off-Axis Angle Sensor (Absolute Field Values, Magnet At-The-Side)
- 6.6 Linear Position or Off-Axis Angle Sensor (Gradient Field Values, Magnet At-The-Side)
- 7 Additional Features
- 8 LZE GmbH
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List of Registers
Settling time
t
res2
200
µs
Do not start a measure-
ment before t
res1
+t
res2
!
Bit
Symbol
Default
Description
D15 (MSB)
– D2
r
0
(Reserved. Always set to default state)
D1
ContMeas
0
“Continuous Measurement Enable”
The
measurement cycle is continuously repeated.
After every measurement cycle the READY pin or
flag (register 0x0107) is set. It must be reset during
the next cycle to indicate the next cycle completion.
D0 (LSB)
SnglLoop
0
“Single Loop”
One single measurement is performed after the last
SCK rising edge of the write access. The READY pin
or flag
(register 0x0107) indicate the completion of
the measurement.
0x000E Bits
5.1.3
0x0107 (read only) – Status Register
Bit
Symbol
Description
D15 (MSB)
Ready
Indicates completion of a new measurement;
same function as the
R
EADY output pin.
0 = calculation is in progress or chip not ready
1 = measurement completed
D14
MagLost
“Magnet Lost”
0 =
Magnetic field magnitude above a minimum value
1 = Magnetic field values are too low for position measurement; the
threshold level can be set by an EEPROM setting
(1)
D13
CorrOvfl
Ambiguous angle correction overflow
D12
NormOvfl
Normalizing scale overflow
D11
SensOvfl
Overflow during sensitivity correction over temperature
D10
RngWarn
ADC overflow
D9
HistWarn
Histogram failure during ADC operation
D8
CalcError
“Cal
culation Error”
Or wired combination of RngWarn, HistWarn, NormOvfl,
SensOvfl. The
corresponding measurement values must not be used.
D7
– D2
r
(Reserved. Always 0)
D1
MgnDir
“Magnet Direction”
Chosen orientation of Magnet
D0 (LSB)
EEDone
“EEPROM Write Done”
0 = EEPROM access in progress
1 = EEPROM access completed
0x0107 Bits
(1) For more information about setting the Magnet Lost threshold refer to chapter 7.9