Infineon TLE5014P16 User Manual page 35

TLE5014
GMR-Based Angle Sensor
SICI
Table 13 Structure of the Command Word
Name Bits
RW [15]
PRTY [14]
CMD [13]
ACCESS [12..11]
ADDR [10..4]
LEN [3..0]
If a read command is transmitted, the master has to send a 16-bit sequence of 0's for every requested word to
be read. The sensor then responds to each "0" from the master with a bit from the register word to be read,
starting with the MSB. If a write command is transmitted, the sensor repeats every single bit of the data words.
After the transmission of the data words, the master has to send another 16-bit sequence of 0's, and the sensor
responds to each "0" with one bit of the safety word, starting with the MSB. Between each transmitted word,
there has to be a delay t
command, data and safety words for read/write access.
A safety word is sent at the end of each communication. The structure of the safety word is shown in
An internally detected sensor fault is indicated in the safety word.
It is recommended to read the status register STAT
error. Reading of the STAT register causes a reset of the error bit in the safety word. If the status register is not
read, the error indication will persist in the safety word, even when the error is no longer existing
User's Manual
Description
Read - Write
0: Write
1: Read
Command Parity
Odd parity of all command word bits. Number of "1"s including parity has
to be odd
Command Mode
0: ADDR field is interpreted as register address to be read/written
Access mode to registers
READ:
00 : Direct readout
B
01 : Update all registers and then readout
B
1x : Readout only updated registers
B
WRITE:
00 : Direct write
B
10 : Reset active bits (ones in written data)
B
11 :Set active bits (ones in written data)
B
7 bit address
4 bit length; number of data words to read/write
to allow the sensor to process the data.
delay
Figure 9
(Chapter 5.1) in this case to get further information of the
35
illustrates the sequence of
Table
Rev. 1.0
2019-03-12
14.