Data Sheet

23

Rev.3.3, 2010-02-15

TLE6240GP

Smart 16-Channel Low-Side Switch

Control of the Device

6.1.4

Control- and Data Byte

As mentioned above, the serial input information consist of a control byte and a data byte. Via the control byte, the

specific mode of the device is programmable.

Ten specific control words are recognized, having the following functions:

Table 2

Commands

Control words beside No. 1- 10

Not specified Control words are not executed (cause no function) and the shift register (SO Data) is reset after the

CS signal (all ‘0’).

Table 1

Control and Data Byte

MSB

LSB

CCCC

CCCC

DDDD

DDDD

Control Byte

Data Byte

No.

Control Byte Data Byte

Function

Channel 1 to 8

1

‘Full Diagnosis’ (two bits per channel) performed for channels 1 to 8. No

change to output states.

2

HHLL LLLL

XXXX XXXX

State of the eight parallel inputs and ‘1-bit Diagnosis’ for channel 1 to 8 is

provided.

3

HLHL LLLL

XXXX XXXX

Echo-function of SPI; SI direct connected to SO.

4

LLHH LLLL

DDDDDDDD2) IN1 … 4 and serial data bits ‘OR’ed. ‘Full Diagnosis’ performed for

channels 1 to 8.

5

HHHH LLLL

DDDDDDDD

IN1 … 4 and serial data bits ‘AND’ed. ‘Full Diagnosis’ performed for

channels 1 to 8.

Channel 9 to 16

6

LLLL HHHH1) XXXX XXXX

‘Full Diagnosis’ (two bits per channel) performed for channels 9 to 16. No

change to output states.

7

HHLL HHHH

XXXX XXXX

State of the eight parallel inputs and ‘1-bit Diagnosis’ for channel 9 to 16 is

provided.

8

HLHL HHHH

XXXX XXXX

Echo-function of SPI; SI direct connected to SO.

9

LLHH HHHH

DDDDDDDD

IN9 … 12 and serial data bits ‘OR’ed. ‘Full Diagnosis’ performed for

channels 9 to 16.

10

HHHH HHHH DDDDDDDD

IN9 … 12 and serial data bits ‘AND’ed. ‘Full Diagnosis’ performed for

channels 9 to 16.

1) Control Byte: Channel Selection via Bit 0 to 3

Bits 0 to 3 = L, Channels 1 to 8 selected

Bits 0 to 3 = H, Channels 9 to 16 selected

2) Data Byte: ‘X’ means ‘don’t care’, because this data bits will be ignored.

‘D’ represents the data bits, either being H (= ON) or L (= OFF).