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
5.1
Measurement Register Contents
5.1.1
0x000B (read/write) – Measurement Control
Bit
Symbol
Default
Description
D15 (MSB)
– D12
r
0
(Reserved. Always set to default state)
D11
MgnRngExt
0
“Magnet Range Extension”
Only useful if
Bit Gradient = 1. Enables the
algorithm for an extended position range. Refer to
chapter
7.7 for further information.
0 = Magnet Range Extension disabled
1 = Magnet Range Extension enabled
D10
CoordSel
0
“Coordinate System Selection”
Only useful if Bit MgnDir = 1. The
linearized angle
can be inverted if the magnet is rotated.
0 = Lin
earized Angle (0x0122) is not changed
1 = The sign of the Linearized Angle (Register
0x0122) is inverted
D9
Special<1>
0
“Special Function”
Must be set to 0b11 if TableSelect=0b01. Refer to
chapter 6.2 for further explanation.
D8
Special<0>
0
D7
TableSelect<1
>
0
“Table Select”
These bits allow the
selection of 4 different
operating
modes. Refer to chapters 6.1 to 6.6.
D6
TableSelect<0
>
0
D5
MgnDir
0
“Magnet Direction”
This Bit allows to switch the magnet direction
.
0
= Magnetic north pole must point to the directions
indicated in chapters
6.3 to 6.6.
1 = North pole must point to the opposite direction.
D4
Gradient
0
“Gradient Mode”
0 = absolute measurement of Hall
sensors,
1 = differential measurement of Hall sensors.
D3 – D2
r
0
(Reserved. Always set to default state)
D1
Rdy2hZ
1
“READY to high Z State”
0
= Pin READY is always active. It must NOT be
connected in parallel
with other devices.
1
= Several READY pins may be connected in
parallel.
Important: READY is only set if the sensor
chip is selected with CS_N (also see chapter 7.5).
D0 (LSB)
PWMflags
0
“State flags in PWM mode”
0 = Normal operation
1 = Enables output of error flags on pins READY
(MagLost) and MISO (CalcErr), see chapter 7.4.
0x000B Bits