Lika MTA1, Руководство пользователя

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SMA1
DATA
(8 bits)
When writing to the register: this is the value to be set in the register (i.e.
transmitted from the Master to the Slave).
When reading from the register: this is the value read in the register (i.e.
transmitted from the Slave to the Master).
Data bit structure:
bit 7 … … 0
MSB … … LSB
CRC
(4 bits)
CRC, namely Cyclic Redundancy Check, is the error checking field resulting from
a “Redundancy Check” calculation performed on the message contents. This is
intended to check whether transmission has been performed properly (inverted
output).
Polynomial: X
4 +X 1 +1 (binary: 10011)
Logic circuit:
6.4 Sensor mode
Sensor mode data (32 bits) consists of the following values: 24-bit position
value (
Position
), 1 error bit (
Error
, nE), 1 warning bit (
Warning
, nW) and CRC
checking (
CRC
, 6 bits).
Sensor data structure:
Start DATA Stop
31 … 8 7 6 5 … 0
Position Error Warning CRC
WARNING
Multi-cycle-data bit (MCD) is not utilized, thus the Master must not require it!
MAN SMA1 E 2.9.odt 6 - BiSS B-mode interface 21 of 48
1st
stage
2nd
stage
3rd
stage
4th
stage
X 0
X
1
X
2
X
3
Input Data (starts from MSB)