TLE8110ED datasheet(48/74 Pages) INFINEON

48 / 74 page

Data Sheet

Rev. 1.0

2018-03-07

TLE8110ED

Smart Multichannel Low Side Switch with Parallel Control and SPI Interface

Control of the device

Figure 31

DRA, DRACL to dev.n and NOP command to dev.n+1

12.2.4

safeCOMMUNICATION

The device contains some safety features, which are improving the protection of the application against mal-

function in case of disturbance of the communication between the Micro Controller and the Device:

12.2.4.1 Encoding of the commands

The Commands are encoded. In case other bit-patterns, then the defined once are received, the commands

are ignored and the communication error can be read out with the command CMD_RSDS (see

Chapter 12.3.1.2).

12.2.4.2 Modulo-8 Counter

The modulo is the integral remainder in integral division. In data communications, a modulo based approach

is used to ensure that user information in SPI protocols is in the correct order. The device has a receiver-side

counter, and a defined counter size. The modulo counter specifies the number of subsequent numbers

available. In case of TLE8110ED Modulo 8 counter specifies 8 serial numbers. The modulo 8 counter ensures

that data is taken only, when a multiple of 8 bit has been transferred. If in one transfer cycle not a multiple of

DRA, DRACL to dev .n and NOP command to dev .n+1

from dev.n

to dev.n+1

S_CS

S_SI

S_SO

SPI daisy-chain word

Safe Communication with NOP command send to dev .n+1 and ignored response

Critical Communication with dev.n+1 response altered by dev .n response to previous DRA /DRACL

to dev.n

from dev.n+1

DRA/DRACL

NOP

from dev.n

to dev.n+1

to dev.n

from dev.n+1

SPI daisy-chain word

no response expected

ignored

response to DRA-/CL

from dev.n

to dev.n+1

S_CS

S_SI

S_SO

SPI daisy-chain word

to dev.n

from dev.n+1

DRA/DRACL

x-command

from dev.n

to dev.n+1

to dev.n

from dev.n+1

SPI daisy-chain word

response to x-command

8-bit altered by dev.n response to DRA-/CL

response to DRA-/CL

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