tle5011 Infineon Technologies Corporation, tle5011 Datasheet - Page 42

• Manufacturer Part Number: tle5011
• Description: Gmr Based Angular Sensor
• Manufacturer: Infineon Technologies Corporation

10
Data communication via the SSC Interface has the following characteristics:
• The data transmission order is “Most Significant Bit (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. All functions are activated after each transmitted
• A “high” condition on the negated Chip Select pin (CS) of the selected TLE5011
• Every access to the TLE5011 with the number of data (ND) ≥ 1 is performed with
• After an auto-increment overflow, the addresses begin from 00
• For every data transfer with ND ≥ 1, an 8-bit CRC byte will be appended by the
• 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 internally generated CRC of each
• A write command to address 00
• A command of 0000_0000 is called Update Command.
• The transfer ends after the CRC and Slave-Active byte have been sent.
• If the Update Mode is selected (CTRL register, UR = 1), all accesses are performed
Target Data Sheet
on SCK.
byte.
interrupts the transfer immediately. The CRC calculator is automatically reset.
address auto-increment.
selected TLE5011. 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 also produce individual feedback of every selected slave. This is necessary
to differentiate the individual TLE5011 slave response, because the CRC byte is
written by both TLE5011 in parallel.
TLE5011, each slave pulls the dedicated bit in the Slave-Active-Byte (bits [7..4], high
nibble) low. If not, the bit in the high nibble remains 1.
TLE5011, and only in this case can the transfer 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 does not need to set and reset again.
The TLE5011 always sends logical 1 and all following sent bits from the SSC Master
are ignored (TLE5011 is in Idle mode). To enable data transfers again, the Chip Select
pin (CS) of the TLE5011 must be deselected for CS
to update registers where update registers are present. Other registers are accessed
directly.
Data Communication via SSC
H
with ND = 0 will update all values inside the
42
off
Data Communication via SSC
(see
Table
H
.
13) once.
V 0.11, 2008-01
TLE5011