TLE9263QX
Pin Configuration
3.3
Hints for Unused Pins
It must be ensured that the correct configurations are also selected, i.e. in case functions are not used that they
are disabled via SPI:
•
•
•
•
•
•
WK1/2/3: connect to GND and disable WK inputs via SPI
HSx: leave open
LINx, RXDLINx, TXDLINx, CANH/L, RXDCAN, TXDCAN: leave all pins open
RO / FOx: leave open
INT: leave open
TEST: connect to GND during power-up to activate SBC Development Mode;
connect to VS or leave open for normal user mode operation
•
•
•
•
•
VCC2: leave open and keep disabled
VCC3: See Chapter 8.5
VCAN: connect to VCC1
n.c.: not connected; internally not bonded; connect to GND
If unused pins are routed to an external connector which leaves the ECU, then these pins should have
provision for a zero ohm jumper (depopulated if unused) or ESD protection.
3.4
Hints for Alternate Pin Functions
In case of alternate pin functions, selectable via SPI, it must be ensured that the correct configurations are also
selected via SPI, in case it is not done automatically. Please consult the respective chapter. In addition, following
topics shall be considered:
•
•
WK1..2: The pins can be either used as HV wake / voltage monitoring inputs or for a voltage measurement
function (via bit WK_MEAS). In the second case, the WK1..2 pins shall not be used / assigned for any wake
detection nor cyclic sense functionality, i.e. WK1 and WK2 must be disabled in the register WK_CTRL_2 and
the level information is to be ignored in the register WK_LVL_STAT.
FO2..3: The pins can also be configured as GPIOs in the GPIO_CTRL register. In this case, the pins shall not
be used for any fail output functionality. The default function after Power on Reset (POR) is FOx.
Data Sheet
11
Rev. 1.1, 2014-09-26
INFINEON [ Infineon ]
