Q67006-A9315 Datasheet, PDF (9/17 Pages) Infineon Technologies AG – Smart Quad Low-Side Switch

Data Sheet TLE 6220 GP
CS
SI H H L L X X X X
SO H H H H H H H H
SI command: No change of the
output state; reading back of
inputs and 1bit diagnosis
SO diagnosis: No fault, normal
function
CS
SI H H H H L H H L
SO IN4 IN3 IN2 IN1 F4 F3 F2 F1
SI command: AND-Operation;
Ch1 and 4 OFF, Ch2 and 3 ON.
SO diagnosis: State of four parallel
inputs and 1 bit diagnosis performed
CS
SI H H H H L L L L
SO H H H H H H H H
SI command: AND-Operation and
all channels OFF.
SO diagnosis: No fault, normal
function
3. HLHL XXXX - Echo-function of SPI
To check the proper function of the serial interface the TLE 6220 GP provides a "SPI Echo
Function". By entering HLHL as control word, SI and SO are connected during the next CS
period. By comparing the bits clocked in with the serial output bits, the proper function of the
SPI interface can be verified. This internal loop is only closed once (for one CS period).
CS
SI H L H L X X X X
SO H H H H L H H H
SI command: No change of the
output states; Echo function of SPI
SO diagnosis: Open load condition
at channel 2, other channels ok.
CS
SI
SI word
SO
Echo-function of SPI, i.e. SI
directly connected to SO.
SI information will be accepted
during this cycle and the
outputs set accordingly after
chip select rising edge
4. LLHH DDDD - OR operation, and ‘full diagnosis’
With LLHH as the control word, each of the input signals IN1...IN4 are 'OR'ed with the corre-
sponding data bits (DDDD).
IN 1...4
≥¹
Output
Driver
Serial Input,
data bits 0...3
This OR operation enables the serial interface to switch the channel ON, even though the cor-
responding parallel input might be in the off state.
SPI Priority for ON-State
Also parallel control of the outputs is possible without an SPI input.
V1.1
Page 9
26.Aug. 2002