Lika SMA1 Series User manual

User's guide
SMA1 +
MTA1
•SMA1 absolute linear encoder
•MTA1 tape, 1 mm pitch, unaffected by dust and liquids
•Max measuring length 5,015 mm / 200 1”
•Resolution 5 µm
•SSI & BiSS interfaces + AB Sine/Cosine track for speed feedback
Suitable for the following models:
•SMA1 -GA2-
•SMA1 -SB1-
•SMA1 -SB2-
•SMA1 -SC1-
•SMA1 -SC2-
Table of Contents
Preliminary information 8
1 - Safety summary 9
2 - Identification 10
3 - Mounting instructions 11
4 - Electrical connections 14
5 - SSI interface 16
6 - BiSS B-mode interface 20
7 - BiSS C-mode interface 31
8 - 1Vpp sine/cosine output signals 42
9 - Error and fault diagnostics 43
Lika Electronic • Tel [phone] • info@lika biz • www lika biz
Smart encoders & actuators

This publication was produced by Lika Electronic s.r.l. 2020. All rights reserved. Tutti i diritti riservati. Alle Rechte vorbehalten. Todos los
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This document and in ormation contained herein are the property o Lika Electronic s.r.l. and shall not be reproduced in whole or in
part without prior written approval o Lika Electronic s.r.l. Translation, reproduction and total or partial modi ication (photostat copies,
ilm and micro ilm included and any other means) are orbidden without written authorisation o Lika Electronic s.r.l.
The in ormation herein is subject to change without notice and should not be construed as a commitment by Lika Electronic s.r.l. Lika
Electronic s.r.l. reserves the right to make all modi ications at any moments and without orewarning.
This manual is periodically reviewed and revised. As required we suggest checking i a new or updated edition o this document is
available at Lika Electronic s.r.l.'s website. Lika Electronic s.r.l. assumes no responsibility or any errors or omissions in this document.
Critical evaluation o this manual by the user is welcomed. Your comments assist us in preparation o uture documentation, in order
to make it as clear and complete as possible. Please send an e-mail to the ollowing address in [email protected] or submitting your
comments, suggestions and criticisms.

General contents
User's guide............................................................................................................................................................................................1
General contents..................................................................................................................................................................................3
Subject index.........................................................................................................................................................................................6
Typographic and iconographic conventions........................................................................................................................7
Preliminary information..................................................................................................................................................................8
1 - Safety summary 9
1.1 Sa ety..........................................................................................................................................................................................9
1.2 Electrical sa ety.......................................................................................................................................................................9
1.3 Mechanical sa ety...............................................................................................................................................................10
2 - Identification 10
3 - Mounting instructions 11
3.1 Overall dimensions..............................................................................................................................................................11
3.2 Magnetic scale......................................................................................................................................................................11
3.3 Mounting the sensor.........................................................................................................................................................12
4 - Electrical connections 14
4.1 T12 cable speci ications....................................................................................................................................................14
4.2 M12 12-pin connector......................................................................................................................................................15
4.3 Ground connection............................................................................................................................................................15
4.4 1Vpp sinusoidal output signals.....................................................................................................................................15
4.5 Diagnostic LED......................................................................................................................................................................15
4.6 Features summary...............................................................................................................................................................15
5 - SSI interface 16
5.1 SSI (Synchronous Serial Inter ace)...............................................................................................................................16
5.2 LSB right aligned protocol...............................................................................................................................................17
5.3 Recommended transmission rates...............................................................................................................................18
5.4 Help ul in ormation...........................................................................................................................................................18
5.5 Recommended SSI circuit................................................................................................................................................19
6 - BiSS B-mode interface 20
6.1 XML ile....................................................................................................................................................................................20
6.2 Communication...................................................................................................................................................................20
6.3 Register Mode.......................................................................................................................................................................20
Register address.......................................................................................................................................................20
DATA.............................................................................................................................................................................21
CRC................................................................................................................................................................................21
6.4 Sensor mode..........................................................................................................................................................................21
Position........................................................................................................................................................................22
Error..............................................................................................................................................................................22
Warning.......................................................................................................................................................................22
CRC................................................................................................................................................................................22
6.5 Used registers........................................................................................................................................................................23
Profile ID.......................................................................................................................................................................23
Serial number............................................................................................................................................................23
Command.....................................................................................................................................................................24
Normal operation....................................................................................................................................................24
Save parameters on EEPROM............................................................................................................................24
Save and activate Preset / O set.....................................................................................................................24
Load and save de ault parameters..................................................................................................................24

Configuration............................................................................................................................................................25
Select BiSS / SSI.......................................................................................................................................................25
Set preset / o set...................................................................................................................................................25
Enable preset / o set............................................................................................................................................25
Output code..............................................................................................................................................................26
Counting direction.................................................................................................................................................26
Absolute resolution................................................................................................................................................26
Preset / Offset...........................................................................................................................................................27
Device type..................................................................................................................................................................28
SINE / COSINE resolution...................................................................................................................................28
Device ID.......................................................................................................................................................................28
Manufacturer ID......................................................................................................................................................29
6.6 Application note..................................................................................................................................................................29
6.7 Examples.................................................................................................................................................................................29
6.7.1 Setting the Con iguration register......................................................................................................................29
6.7.2 Setting the Preset / O set register......................................................................................................................30
6.8 Recommended BiSS circuit.............................................................................................................................................30
7 - BiSS C-mode interface 31
7.1 XML ile....................................................................................................................................................................................31
7.2 Communication...................................................................................................................................................................31
7.3 Single Cycle Data.................................................................................................................................................................32
Position........................................................................................................................................................................32
Error..............................................................................................................................................................................32
Warning.......................................................................................................................................................................32
CRC................................................................................................................................................................................33
7.4 Control Data CD...................................................................................................................................................................33
Register address.......................................................................................................................................................33
RW.................................................................................................................................................................................33
DATA.............................................................................................................................................................................33
CRC................................................................................................................................................................................34
7.5 Used registers........................................................................................................................................................................34
Profile ID.......................................................................................................................................................................35
Serial number............................................................................................................................................................35
Command.....................................................................................................................................................................35
Normal operation....................................................................................................................................................35
Save parameters on EEPROM............................................................................................................................35
Save and activate Preset / O set.....................................................................................................................35
Load and save de ault parameters..................................................................................................................35
Configuration............................................................................................................................................................36
Set preset / o set...................................................................................................................................................36
Enable preset / o set............................................................................................................................................36
Output code..............................................................................................................................................................37
Counting direction.................................................................................................................................................37
Absolute resolution................................................................................................................................................37
Preset / Offset...........................................................................................................................................................38
Device type..................................................................................................................................................................39
SINE / COSINE resolution...................................................................................................................................39
Device ID.......................................................................................................................................................................39
Manufacturer ID......................................................................................................................................................40
7.6 Application note..................................................................................................................................................................40

7.7 Examples.................................................................................................................................................................................40
7.7.1 Setting the Con iguration register......................................................................................................................40
7.7.2 Setting the Preset / O set register......................................................................................................................41
7.8 Recommended BiSS circuit.............................................................................................................................................41
8 - 1Vpp sine/cosine output signals 42
8.1 Output signals voltage level...........................................................................................................................................42
9 - Error and fault diagnostics 43
9.1 Diagnostic LED......................................................................................................................................................................43
10 - Maintenance 44
11 - Troubleshooting 45
12 - Default parameters list 46

Subject index
A
Absolute resolution.................................................26, 37
C
Command....................................................................24, 35
Con iguration.............................................................25, 36
Counting direction...................................................26, 37
D
Device ID......................................................................28, 39
Device type..................................................................28, 39
E
Enable preset / o set..............................................25, 36
L
Load and save de ault parameters....................24, 35
M
Manu acturer ID.......................................................29, 40
N
Normal operation.....................................................24, 35
O
O set.............................................................................27, 38
Output code................................................................26, 37
P
Preset.............................................................................27, 38
Preset / O set............................................................27, 38
Pro ile ID.......................................................................23, 35
S
Save and activate Preset / O set......................24, 35
Save parameters on EEPROM..............................24, 35
Select BiSS / SSI................................................................25
Serial number.............................................................24, 35
Set preset / o set.....................................................25, 36
SINE / COSINE resolution......................................28, 39

Typographic and iconographic conventions
In this guide, to make it easier to understand and read the text the ollowing typographic and
iconographic conventions are used:
•parameters and objects both o the device and the inter ace are coloured in GREEN;
•alarms are coloured in RED;
•states are coloured in FUCSIA.
When scrolling through the text some icons can be ound on the side o the page: they are expressly
designed to highlight the parts o the text which are o great interest and signi icance or the user.
Sometimes they are used to warn against dangers or potential sources o danger arising rom the use o
the device. You are advised to ollow strictly the instructions given in this guide in order to guarantee
the sa ety o the user and ensure the per ormance o the device. In this guide the ollowing symbols are
used:
This icon, ollowed by the word WARNING, is meant to highlight the parts o the
text where in ormation o great signi icance or the user can be ound: user must
pay the greatest attention to them! Instructions must be ollowed strictly in order
to guarantee the sa ety o the user and a correct use o the device. Failure to heed
a warning or comply with instructions could lead to personal injury and/or damage
to the unit or other equipment.
This icon, ollowed by the word NOTE, is meant to highlight the parts o the text
where important notes need ul or a correct and reliable use o the device can be
ound. User must pay attention to them! Failure to comply with instructions could
cause the equipment to be set wrongly: hence a aulty and improper working o
the device could be the consequence.
This icon is meant to highlight the parts o the text where suggestions use ul or
making it easier to set the device and optimize per ormance and reliability can be
ound. Sometimes this symbol is ollowed by the word EXAMPLE when instructions
or setting parameters are accompanied by examples to clari y the explanation.

Preliminary information
This guide is designed to provide the most complete and exhaustive in ormation the operator needs to
correctly and sa ely install and operate the SMA1 series absolute linear encoder. SMA1 is designed to
measure displacements in industrial machines and automation systems. The measurement system
includes a magnetic tape and a magnetic sensor with conversion electronics. The scale is magnetized
with a coded sequence o North-South poles generating an absolute pattern. As the encoder moves
along the magnetic scale, the sensor detects the displacement and yields the absolute position
in ormation through the SSI inter ace (order code SMA1-GA2-...) or the BiSS B-mode inter ace (order
code SMA1-SBx-...) or the BiSS C-mode inter ace (order code SMA1-SCx-...). All versions urther provide
additional 1Vpp sine-cosine signals or speed eedback.
It is mandatory to pair the sensor with the MTA1 type magnetic tape.
To make it easier to read and understand the text, this guide can be divided into ive main sections.
In the irst section some general in ormation concerning the sa ety, the mechanical installation and the
electrical connection as well as tips or setting up and running properly and e iciently the unit are
provided.
In the second section, entitled SSI interface, both general and speci ic in ormation is given on the SSI
inter ace.
In the third section, entitled BiSS B-mode interface, both general and speci ic in ormation is given on
the BiSS B-mode inter ace. In this section the parameters implemented in the unit are ully described.
In the ourth section, entitled BiSS C-mode interface, both general and speci ic in ormation is given on
the BiSS C-mode inter ace. In this section the parameters implemented in the unit are ully described.
Finally, in the i th section, entitled 1Vpp sine-cosine output signals, some in ormation is given on the
additional sinusoidal signals.

SMA1
1 - Safety summary
1 1 Safety
•Always adhere to the pro essional sa ety and accident prevention
regulations applicable to your country during device installation and
operation;
•installation and maintenance operations have to be carried out by
quali ied personnel only, with power supply disconnected and stationary
mechanical parts;
•device must be used only or the purpose appropriate to its design: use or
purposes other than those or which it has been designed could result in
serious personal and/or the environment damage;
•high current, voltage and moving mechanical parts can cause serious or
atal injury;
•warning ! Do not use in explosive or lammable areas;
•ailure to comply with these precautions or with speci ic warnings
elsewhere in this manual violates sa ety standards o design, manu acture,
and intended use o the equipment;
•Lika Electronic assumes no liability or the customer's ailure to comply
with these requirements.
1 2 Electrical safety
•Turn OFF the power supply be ore connecting the device;
•connect the unit according to the explanation in the ”4 - Electrical
connections” section on page 14;
•the wires o unused signals must be cut at di erent lengths and insulated
singularly;
•in compliance with 2014/30/UE norm on electromagnetic
compatibility, ollowing precautions must be taken:
- be ore handling and installing the equipment, discharge
electrical charge rom your body and tools which may come in touch
with the device;
- power supply must be stabilized without noise; install EMC ilters on
device power supply i needed;
- always use shielded cables (twisted pair cables whenever possible);
- avoid cables runs longer than necessary;
- avoid running the signal cable near high voltage power cables;
- mount the device as ar as possible rom any capacitive or inductive
noise source; shield the device rom noise source i needed;
- to guarantee a correct working o the device, avoid using strong magnets
on or near by the unit;
- minimize noise by connecting the cable shield and/or the connector
housing and/or the sensor to ground. Make sure that ground is not
a ected by noise. The connection point to ground can be situated both
on the device side and on user’s side. The best solution to minimize the
inter erence must be carried out by the user.
MAN SMA1 E 2.9.odt 1 - Sa ety summary 9 o 48

SMA1
1 3 Mechanical safety
•Install the device ollowing strictly the in ormation in the “3 - Mounting
instructions” section on page 11;
•mechanical installation has to be carried out with stationary mechanical
parts;
•do not disassemble the unit;
•do not tool the unit;
•delicate electronic equipment: handle with care; do not subject the device
to knocks or shocks;
•protect the unit against acid solutions or chemicals that may damage it;
•respect the environmental characteristics o the product;
•we suggest installing the unit providing protection means against waste,
especially swar as turnings, chips, or ilings; should this not be possible,
please make sure that adequate cleaning measures (as or instance
brushes, scrapers, jets o compressed air, etc.) are in place in order to
prevent the sensor and the magnetic scale rom jamming.
2 - Identification
Device can be identi ied through the order code and the serial number printed
on the label applied to its body. In ormation is listed in the delivery document
too. Please always quote the order code and the serial number when reaching
Lika Electronic or purchasing spare parts or needing assistance. For any
in ormation on the technical characteristics o the product re er to the
technical datasheet.
Warning: devices having order code ending with "/Sxxx" may have
mechanical and electrical characteristics di erent rom standard and
be supplied with additional documentation or special connections
(Technical In o).
MAN SMA1 E 2.9.odt 2 - Identi ication 10 o 48

SMA1
3 - Mounting instructions
WARNING
Installation has to be carried out by quali ied personnel only, with power supply
disconnected and mechanical parts compulsorily in stop.
3 1 Overall dimensions
3 2 Magnetic scale
The sensor has to be paired with the MTA1 type magnetic scale only. For
detailed in ormation on the MTA1 type scale and how to mount it re er to the
speci ic technical documentation.
Install the unit providing protection means against waste, especially swar as
turnings, chips, or ilings; should this not be possible, please make sure that
adequate cleaning measures (as or instance brushes, scrapers, jets o
compressed air, etc.) are in place in order to prevent the sensor and the
magnetic scale rom jamming.
Make sure the mechanical installation meets the system's requirements o
distance, planarity and parallelism between the sensor and the scale indicated in
Figure 2 all along the whole measuring length.
The Figure 1 below shows how the sensor and the scale must be installed; the
arrow indicates the standard counting direction (increasing count, see the
parameter Counting direction on page 26 / 37).
WARNING
The system cannot work i mounted otherwise than illustrated in the Figures.
MAN SMA1 E 2.9.odt 3 - Mounting instructions 11 o 48

SMA1
3 3 Mounting the sensor
Figure 1
Make sure the mechanical installation complies with the system requirements
concerning distance, planarity and parallelism between the sensor and the scale.
Avoid contact between the parts. Sensor is ixed by means o two M5 25 mm
min long cylinder head screws inserted in the provided holes. Recommended
minimum bend radius o the cable: R  45 mm.
The allowed gap between the sensor and the scale is 0 1 mm  0 3 mm
(0 004”  0 012”)
Do not use the cover strip, it would cause an excessive gap between the sensor
and the scale sur ace.
WARNING
Make sure the mechanical installation complies with the system requirements
concerning distance, planarity and parallelism between the sensor and the scale
as shown in Figure 2 all along the whole measuring length.
Mount the sensor as shown in the Figures. Please mind the direction o the
cable outlet. The system cannot operate i mounted otherwise than illustrated in
the Figures.
MAN SMA1 E 2.9.odt 3 - Mounting instructions 12 o 48

SMA1
Figure 2
WARNING
A ter having installed the sensor on the magnetic scale a zero setting operation
is compulsorily required. The zero setting operation is urther required every
time either the sensor or the scale is replaced. Re er to pages 27 and 38. Not
available or SSI inter ace.
MAN SMA1 E 2.9.odt 3 - Mounting instructions 13 o 48

SMA1
4 - Electrical connections
WARNING
Electrical connection has to be carried out by quali ied personnel only, with
power supply disconnected and mechanical parts compulsorily in stop.
WARNING
I wires o unused signals come in contact, irreparable damage could be caused
to the device. Please insulate them singularly.
Connections
Function T12 cable M12 12-pin
0Vdc White_Green 1
+Vdc 1Brown_Green 2
Clock IN + / MA + Violet 3
Clock IN - / MA - Yellow 4
Data OUT + / SLO + Grey 5
Data OUT - / SLO - Pink 6
not connected White 7
not connected Blue 8
A (cos+) Green 9
/A (cos-) Brown 10
B (sin+) Red 11
/B (sin-) Black 12
Shielding Shield Case
1 See the order code or the power supply voltage level.
EXAMPLE
SMA1-SC2-... +Vdc = +10Vdc +30Vdc→
SMA1-SB1-... +Vdc = +5Vdc →±5%
4 1 T12 cable specifications
Model : LIKA T12 cable
Wires : 4 x 0.25 mm2 + 4 x 2 x 0.14 mm2 twisted pairs
Shield : tinned copper braid
External diameter : Ø 6.1 mm ± 0.10 mm
Conductor resistance : <90 /km (0.25 mm2); <148 /km (0.14 mm2)
Minimum bending radius : Ø x 7.5
MAN SMA1 E 2.9.odt 4 - Electrical connections 14 o 48

SMA1
4 2 M12 12-pin connector
M12 12-pin connector
A coding
Male rontal side
4 3 Ground connection
Minimize noise by connecting the cable shield and/or the connector housing
and/or the sensor to ground. Make sure that ground is not a ected by noise.
The connection point to ground can be situated both on the device side and on
user’s side. The best solution to minimize the inter erence must be carried out by
the user.
4 4 1Vpp sinusoidal output signals
For any urther in ormation on the 1Vpp sinusoidal signals please re er to the “8
- 1Vpp sine/cosine output signals” section on page 42.
4 5 Diagnostic LED
For any urther in ormation on the diagnostic LED please re er to the “9 - Error
and ault diagnostics” section on page 43.
4 6 Features summary
SMA1-xxx-5-
Absolute track physical
resolution 5 µm
Sine/cosine track resolution 1 mm
Max scale length
(max measuring length)
5,100 mm
(5,015 mm)
Pole pitch dimension 1 mm
Max information
(max value) 20 bits (1,048,575)
MAN SMA1 E 2.9.odt 4 - Electrical connections 15 o 48

SMA1
5 - SSI interface
Order code: SMA1-GA2-5-…
5 1 SSI (Synchronous Serial Interface)
SSI (the acronym or Synchronous Serial
Interface) is a synchronous point-to-point serial
inter ace engineered or unidirectional data
transmission between one Master and one Slave.
Developed in the irst eighties, it is based on the RS-
422 serial standard. Its most peculiar eature is that data transmission is
achieved by synchronizing both the Master and the Slave devices to a common
clock signal generated by the controller; in this way the output in ormation is
clocked out at each controller's request. Furthermore only two pairs o twisted
wires are used or data and clock signals, thus a six-wire cable is required.
The main advantages in comparison with parallel or asynchronous data
transmissions are:
•less conductors are required or transmission;
•less electronic components;
•possibility o insulting the circuits galvanically by means o
optocouplers;
•high data transmission requency;
•hardware inter ace independent rom the resolution o the absolute
encoder.
Furthermore the di erential transmission increases the noise immunity and
decreases the noise emissions. It allows multiplexing rom several encoders, thus
process controls are more reliable with simpli ied line design and easier data
management.
Data transmission is carried out as ollows.
At the irst alling edge o the clock signal (1, the logic level changes rom high
to low) the absolute position value is stored while at the ollowing rising edge
(2) the transmission o data in ormation begins starting rom the MSB.
At each change o the clock signal and at each subsequent rising edge (2) one
bit is clocked out at a time, up to LSB, so completing the data word
transmission. The cycle ends at the last rising edge o the clock signal (3). This
MAN SMA1 E 2.9.odt 5 - SSI inter ace 16 o 48

SMA1
means that up to n + 1 rising edges o the clock signals are required or each
data word transmission (where n is the bit resolution); or instance, a 13-bit
encoder needs 14 clock edges. I the number o clocks is greater than the
number o bits o the data word, then the system will send a zero (low logic
level signal) at each additional clock, zeros will either lead (LSB ALIGNED
protocol) or ollow (MSB ALIGNED protocol) or lead and/or ollow (TREE FORMAT
protocol) the data word. A ter the period Tm mono lop time, having a typical
duration o 12 µsec, calculated rom the end o the clock signal transmission,
the encoder is then ready or the next transmission and there ore the data
signal is switched high.
The clock signal has a typical logic level o 5V, the same as the output signal
which has customarily a logic level o 5V in compliance with RS-422 standard.
The output code can be either Binary or Gray (see the order code).
5 2 LSB right aligned protocol
“LSB right aligned” protocol allows to right align the bits, beginning rom MSB
(most signi icant bit) to LSB (least signi icant bit); LSB is then sent at the last
clock cycle. I the number o clock signals is higher than the data bits, then
unused bits are orced to logic level low (0) and lead the data word. This
protocol can be used in sensors having any resolution. The word has a length o
25 bits.
The device uses 20 bits to provide the position in ormation, unused bits ( rom
20 to 24) are set to 0 (zero).
Thus:
Model Resolution Length of the word Max number of
information
SMA1-GA2-5- 0.005 mm 25 bits 20 bits (1,048,575)
The output code o the sensor can be GRAY or BINARY (see the order code).
The length o each in ormation is equal to the resolution (5 µm).
Position structure:
bit 24 … 20 19 … 0
value 00000 MSB … LSB
WARNING
The position value issued by the sensor is expressed in pulses; to convert the
pulses into a metric measuring unit you must multiply the number o detected
pulses by the resolution.
EXAMPLE
SMA1-GA2-5-…
resolution = 5 µm
detected pulses = 123
position value = 123 * 5 = 615 µm = 0.615 mm
MAN SMA1 E 2.9.odt 5 - SSI inter ace 17 o 48

SMA1
5 3 Recommended transmission rates
The SSI inter ace has a requency o data transmission ranging between 100 kHz
and 1 MHz.
The CLOCK signal and DATA signal comply with the “EIA standard RS-422”.
The clock requency (baud rate) depends on the length o the cable and must
comply with the technical in ormation reported in the ollowing table:
Cable length Baud rate
< 50 m < 400 kHz
< 100 m < 300 kHz
< 200 m < 200 kHz
< 400 m < 100 kHz
The time interval between two Clock sequence transmissions must be at least 16
µs ( Tp > 16 µs).
5 4 Helpful information
•The position in ormation increases when the sensor moves in the
direction indicated by the arrow in the Figure 1, starting rom a min.
value up to a max. value; min. and max. values depend on the speci ic
MTA1 magnetic scale installed in your application.
MAN SMA1 E 2.9.odt 5 - SSI inter ace 18 o 48

SMA1
5 5 Recommended SSI circuit
MAN SMA1 E 2.9.odt 5 - SSI inter ace 19 o 48

SMA1
6 - BiSS B-mode interface
Order code: SMA1-SBx-5-
SMA1 is a Slave device and complies with the “BiSS B-mode inter ace” and the
“Standard encoder pro ile”.
For detailed in ormation not listed in this manual please re er to the o icial
BiSS website (www.biss-inter ace.com).
The sensor is designed to operate in a point-to-point con iguration and has to
be installed in a “single Master, single Slave” network.
WARNING
Never connect the sensor in a “single Master - Multi Slave” network.
CLOCK MA and DATA SLO signal levels comply with the “EIA standard RS-422”.
6 1 XML file
The product is supplied with an XML ile idbiss4C69 xml (see at www lika biz).
Install the XML ile in your BiSS Master device.
6 2 Communication
The BiSS B-mode protocol uses two types o data transmission protocols:
Register Mode: this is used to read data rom or write data to the registers
o the Slave. See the section “6.3 Register Mode” on page 20.
Sensor mode: this is used to trans er process data rom the Slave device to
the Master device. See the section “6.4 Sensor mode” on page 21.
6 3 Register Mode
Main data ields available in the register mode are described under this section.
For the complete structure and in ormation please re er to the o icial
documents supplied by BiSS organization.
Register address
(7 bits)
This is the address o the register; it speci ies the register you need to read rom
or write to.
MAN SMA1 E 2.9.odt 6 - BiSS B-mode inter ace 20 o 48