TLE6232GP_09 Datasheet, PDF (14/20 Pages) Infineon Technologies AG – Smart Six Channel Low-Side Switch

Data Sheet TLE 6232 GP
Description of the SPI Registers
(SPI Instructions: RD_DIAG)
Register: DIAG_REG1
7
6
5
4
3
2
1
0
ST7
ST6
ST5
ST4
ST3
ST2
ST1
ST0
State of FFH
Reset:
Access by Read only
Controller:
Bit
Name
Description
7-6
DIA4
Diagnostic Bits of power stage 4
5-4
DIA3
Diagnostic Bits of power stage 3
3-2
DIA2
Diagnostic Bits of power stage 2
1-0
DIA1
Diagnostic Bits of power stage 1
Note: This byte is always clocked out (second SO-byte), except the SI control words says:
RD_SCON or RD_MUX. But: The content of the fault register will only be deleted if the control command
’RD_DIAG’ was clocked in and 16 clock pulses were counted.
Register: DIA_REG2
7
6
5
4
3
2
1
0
Z
Z
F
OT
ST11
ST10
ST9
ST8
State of FFH
Reset:
Access by Read only
Controller:
Bit
Name
Description
7-6
Z
Bit 7 and 6 are always tri-state
5
F
Common error flag
4
OT
Common over-temperature flag
3-2
DIA6
Diagnostic Bits of power stage 6
1-0
DIA5
Diagnostic Bits of power stage 5
Encoding of the Diagnostic (Status) Bits of the Power Stages
ST(2*x-1)
ST(2*x-2)
State of power stage x x = 1..6
1
1
Power stage o.k.
1
0
Overload, short circuit to battery (SCB) or over-temperature (OT)
0
1
Open load (OL)
0
0
Short circuit to ground (SCG)
Note: DIA_REG2 is always clocked out as first byte
F, OT Bit = 1: No Fault
F, OT Bit = 0: Fault, Over-temperature
The over-temperature bit is the latched result of an OR-operation out of the 6 signals of
the temperature sensor)
The general fault bit shows the fault occurrence at any of the outputs.
Reset of the Diagnostic Information
The diagnostic information will only be reset after the RD_DIAG command on the rising edge
of slave select or a reset signal is applied (RESET = low).
V2.3
Page 14
2009-11-18