TLE9263QX
System Features
5.1.3
SBC Stop Mode
The SBC Stop Mode is the first level technique to reduce the overall current consumption by setting the voltage
regulators VCC1, VCC2 and VCC3 into a low-power mode. In this mode VCC1 is still active and supplying the
microcontroller, which can enter a power down mode. The VCC2 supply, CAN & LIN mode as well as the HSx
outputs can be configured to stay enabled. All kind of settings have to be done before entering SBC Stop Mode.
In SBC Stop Mode any kind of SPI WRITE commands are ignored and the SPI_FAIL bit is set, except for changing
to SBC Normal Mode, triggering a SBC Soft Reset, refreshing the watchdog as well as for reading and clearing
the SPI status registers. A wake-up event on CAN, LINx and WKx will create an interrupt on pin INT - however,
no change of the SBC mode will occur. The configuration options are listed below:
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•
•
•
•
•
•
•
•
•
•
•
VCC1 is ON
VCC2 is fixed as configured in SBC Normal Mode
VCC3 is fixed as configured in SBC Normal Mode
CAN mode is fixed as configured in SBC Normal Mode
LIN mode is fixed as configured in SBC Normal Mode
WK pins are fixed as configured in SBC Normal Mode
HS Outputs are fixed as configured in SBC Normal Mode
Cyclic sense is fixed as configured in SBC Normal Mode
Cyclic wake is fixed as configured in SBC Normal Mode
Watchdog is fixed as configured in SBC Normal Mode
SBC Soft Reset can be triggered
FOx outputs are fixed, i.e. the state from SBC Normal Mode is maintained
An interrupt is triggered on the pin INT when SBC Stop Mode is entered and not all wake source signalization flags
from WK_STAT_1 and WK_STAT_2 were cleared.
Note:If switches are enabled during SBC Stop Mode, e.g. HSx on with or without PWM, then the SBC current
consumption will increase (see Chapter 4.4).
Note:It is not possible to switch directly from SBC Stop Mode to SBC Sleep Mode. Doing so will also set the
SPI_FAIL flag and will bring the SBC into Restart Mode.
Note:When WK1 and WK2 are configured for the alternate measurement function (WK_MEAS = 1) then the wake
inputs cannot be selected as wake input sources.
Data Sheet
26
Rev. 1.1, 2014-09-26
INFINEON [ Infineon ]
