Communication Protocol - Infineon TLE5014P16 User Manual

TLE5014
GMR-Based Angle Sensor
SICI
To enter the programming mode of TLE5014 some dedicated commands have to be sent within the start-up
time of the sensor (see Chapter
T2, ...) can be used with TLE5014. An example setting of the timing parameters for SICI interface, which allows
to send all necessary SICI commands within the start-up time, is shown in
Table 12 Example of SICI timing parameters
Parameter
Master PWM period
Master low time to transmit "0"
Master low time to transmit "1"
Time difference between master low
and high level
Master low pulse after PWM bit
Master pause time after sensor bit
response
6.2.2

Communication Protocol

The master transmits a 16-bit command word to read or write registers, then sends or receives a number of
data words and then receives a safety word from the sensor. Each transmission starts with the most-
significant-bit (MSB). The register map is shown in
word.
a) Read:
Masters sends :
Sensor responds :
b) Write:
Masters sends :
Sensor responds :
Figure 9 SICI data transfer for read command (a) and write command (b)
User's Manual
6.2.4).Thus, not all possible settings of the SICI timing parameters (e.g. T, T1,
Symbol
T
T
1
T
2
∆T
T
3
T
4
Command 0x0000
repeat Command Data Word 1
t
delay
Command Data Word 1
repeat Command repeat Data Word 1
t
delay
Table
Value Unit
21.1 µs
6.6 µs
14.5 µs
7.9 µs
3.5 µs
25 µs
Chapter 3. Table 13 shows the structure of the command
0x0000
Data Word n
t
delay
Data Word n
repeat Data Word n
t
delay
34
12.
Remarks
∆T = T - 2 * T ; for "0"
1
∆T = 2 * T - T; for "1"
2
0x0000
t
Safety Word
t
delay
0x0000
t
Safety Word
t
delay
Rev. 1.0
2019-03-12