tle5010 Infineon Technologies Corporation, tle5010 Datasheet - Page 42

• Manufacturer Part Number: tle5010
• Description: Gmr Based Angular Sensor
• Manufacturer: Infineon Technologies Corporation

Draft
10
• The data transmission order is ’MSB first’.
• Data is put on the data line with the rising edge on SCK and read with the falling edge
• The SSC interface is byte aligned. Functions are activated after each transmitted byte.
• A “high” condition on the negated chip select pin (CS) of the selected TLE5010
• Every access to the TLE5010 with ND (number of data)
• After an auto-increment overflow the addresses are beginning from 00
• For every data transfer with ND
• After the CRC byte is sent, the bit represented by S_NO is pulled low by the selected
• If the CRC byte on the bus is the same as the internal generated CRC of each
• A write command to address 00
• A command of “0000_0000” is called ’Update Command’.
• After the CRC and Slave-Active byte have been sent the transfer ends.
• If the update mode is selected (CTRL register, UR = ’1’), all accesses are done to
Preliminary Data Sheet
on SCK.
interrupts the transfer immediately. The CRC calculator is automatically resetted.
increment.
TLE5010. No CRC byte is sent in a data transfer with ND = 0 (e.g. Update Command).
slave in the Slave-Active-Byte (bits [3..0], low nibble). In this way, also broadcast-
messages produce an individual feedback of every selected slave. This is necessary
to differentiate the individual TLE5010 slave response, because the CRC byte is
written by both TLE5010 in parallel.
TLE5010, each slave pulls low the dedicated bit in the Slave-Active-Byte (bits [7..4],
high nibble). If not, the bit in the high nibble remains ’1’.
TLE5010, and only in this case the transfer can proceed. Furthermore this command
is add to the CRC-calculation of the following SSC Transfer.
This command transfers the present immediate values of each register to the update
register. After an Update Command, the CS line need not set and reset again.
The TLE5010 always sends logical “1” and all following sent bits from the SSC Master
are ignored (TLE5010 is in idle mode). To enable data transfers again the chip select
pin (CS) of the TLE5010 has to be deselected for CS
update registers where update registers are present. Other registers are accessed
directly.
Data Communication via SSC
H
1 a 8 bit CRC byte will be appended by the selected
with ND = 0 will update all values inside the
42
Data Communication via SSC
off
(see
1 is done with address auto
Table
13) once.
H
V 0.9, 2007-05
again.
TLE5010