TLE9260-3QX Datasheet, PDF (136/175 Pages) Infineon Technologies AG – Dedicated Data Sheets are available for the different product variants

14.5.2 Selective Wake Control Registers
TLE9260-3QX
Serial Peripheral Interface
SWK_CTRL
CAN Selective Wake Control (Address 010 0000_B)
POR / Soft Reset Value: 0000 0000_B; Restart Value: xxxx 0000_B
7
6
5
4
3
2
1
OSC_CAL TRIM_EN_1 TRIM_EN_0
rw
rw
rw
CANTO_
MASK
rw
Reserved
r
Reserved Reserved
r
r
r
0
CFG_VAL
rwh
Field
Bits
OSC_CAL 7
TRIM_EN 6:5
CANTO_ 4
MASK
Reserved 3:1
CFG_VAL 0
Type
rw
rw
rw
r
rwh
Description
Oscillator Calibration Mode
0_B , Oscillator Calibration is disabled
1_B , Oscillator Calibration is enabled
(Un)locking mechanism of oscillator recalibration
00_B , locked
01_B , locked
10_B , locked
11_B , unlocked
CAN Time Out Masking
0_B , CAN time-out is masked - no interrupt (on pin INT) is triggered
1_B , CAN time-ut is signaled on INT
Reserved, always reads as 0
SWK Configuration valid
0_B , Configuration is not valid (SWK not possible)
1_B , SWK configuration valid, needs to be set to enable SWK
Notes
1. TRIM_EN unlocks the oscillation calibration mode. Only the bit combination ‘11’ is the valid unlock. The pin
TXDCAN is used for oscillator synchronisation (trimming).
2. The microcontroller needs to validate the SWK configuration and set ‘CFG_VAL’ to ‘1’. The SBC will only
enable SWK if CFG_VAL’ to ‘1’. The bit will be cleared automatically by the SBC after a wake up or POR or if
a SWK configuration data is changed by the microcontroller.
3. CANTO bit will only be updated inside BUS_STAT while CAN_2 is set. Therefore, an interrupt is only signaled
upon occurrence of CANTO while CAN_2 (SWK is enabled) is set in SBC Normal and Stop Mode.
4. TRIM_EN also unlocks the writing to the SWK_OPT_CTRL register in order to enable the alternate low-power
Receiver for Selective wake to optimize the quiescent current consumption. Only the bit combination ‘11’
unlocks the calibrations / configurations.
Data Sheet
136
Rev. 1.1, 2014-09-26