TLE9260-3QX Datasheet, PDF (47/175 Pages) Infineon Technologies AG – Dedicated Data Sheets are available for the different product variants

TLE9260-3QX
5.4.4.1 SBC Normal Mode with SWK
In SBC Normal Mode the CAN Transceiver can be switched into the following CAN Modes
• CAN OFF
• CAN WK Mode (without SWK)
• CAN SWK Mode
• CAN Receive Only (No SWK activated)
• CAN Receive Only Mode with SWK
• CAN Normal Mode (No SWK activated)
• CAN Normal Mode with SWK
In the CAN Normal Mode with SWK the CAN Transceiver works as in SBC Normal Mode, so bus data is received
through RXD, data is transmitted through TXD and sent to the bus. In addition the SWK block is active. It monitors
the data on the CAN bus, updates the error counter and sets the CANSIL flag if there is no communication on the
bus.
It will generate an CAN Wake interrupt in case a WUF is detected (RXD is not pulled to LOW in this configuration).
In CAN Receive Only Mode with SWK, CAN data can be received on RXD and SWK is active, no data can be sent
to the bus.
The bit SYSERR = ‘0’ indicates that the SWK function is enabled, and no frame error counter overflow is detected.
Table 9 CAN Modes selected via SPI in SBC Normal Mode
CAN Mode
CAN OFF
CAN WK Mode (no SWK)
CAN Receive Only (no SWK)
CAN Normal Mode (no SWK)
CAN OFF
CAN SWK Mode
CAN Receive Only with SWK
CAN Normal Mode with SWK
CAN_2
0
0
0
0
1
1
1
1
CAN_1
0
0
1
1
0
0
1
1
CAN_0
0
1
0x
1
0
1
0
1
When reading back CAN_x the programmed mode is shown in SBC Normal Mode. To read the real CAN mode
the bits SYSERR, SWK_SET and CAN have to be evaluated. A change out of SBC Normal Mode can change the
CAN_0 and CAN_1 bits.
Data Sheet
47
Rev. 1.1, 2014-09-26