TLE8110EE_13 Datasheet, PDF (47/74 Pages) Infineon Technologies AG – Overvoltage, Overtemperature, ESD -Protection

TLE 8110 EE
Smart Multichannel Switch
Control of the device
Note: Reading a register needs two SPI frames. In the first frame the RD command is sent. In the second frame the output at
SPI signal SO will contain the requested information. A new command can be executed in the second frame.
12.2.3.2 2x8-bit protocol
Each Cycle where a serial data or command frame is sent to the S_SI of the SPI interface, a data frame is returned
at the same time by the S_SO. The content of the S_SO frame is dependent of the previous command which has
been sent to S_SI and the content of the actual content of S_SI: The first Upper Byte send to S_SI controls the
content of the Lower Byte actual returned by S_SO. The Lower Byte send to S_SI controls the Lower Byte in S_SO
of the next frame. (see Figure 29 ).
S_CS
S_SI
S_SO
DMSx OPSx
Upper
Byte
DO
Figure 29 2x8-bit protocol
Upper
Byte
Lower
Byte
OPF
Lower
Byte
Upper Lower
Byte
Byte
Upper Lower
Byte
Byte
SPI_Protocol_2x8bit.vsd
Data Sheet
47
Rev. 1.4, 2013-07-02