TLE9263-3QX Datasheet, PDF (47/198 Pages) Infineon Technologies AG – Dedicated Data Sheets are available for the different product variants

TLE9263-3QX
5.4.4 SBC Modes for Selective Wake (SWK)
The SBC mode is selected via the MODE bits as described in Chapter 5.1.
The mode of the CAN transceiver needs to be selected in SBC Normal Mode. The CAN mode is programed the
bits CAN_0, CAN_1 and CAN_2. In the low-power modes (SBC Stop, SBC Sleep) the CAN mode can not be
changed via SPI.
The detailed SBC state machine diagram including the CAN selective wake feature is shown in Figure 6.
The application must now distinguish between the normal CAN operation an the selective wake function:
• WK Mode: This is the normal CAN wake capable mode without the selective wake function
• SWK Mode: This is the CAN wake capable mode with the selective wake function enabled
Figure 14 shows the possible CAN transceiver modes.
CAN OFF Mode
CAN WK Mode
CAN Wakable Mode
with SWK
Config.
Check
OK
CAN
SWK
Not OK _{CAN WK}
CAN Normal Mode
(no SWK)
SPI CAN_x
CAN Normal mode with SWK
CAN Normal mode
Config. ^OK CAN
Check
SWK
Not OK _{CAN WK}
CAN Receive-Only
Mode
CAN RX Only Mode with SWK
CAN RX Only Mode
Config. ^OK CAN
Check
SWK
Not OK _{CAN WK}
Figure 14 CAN SWK State Diagram
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
Data Sheet
47
Rev. 1.1, 2014-09-26