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AS8221

Data Sheet - C o n t e n t s

8.12.9 Short Circuit between BP and BM (BP_BM)............................................................................................................................. 24

8.12.10 Over Temperature (OT) .......................................................................................................................................................... 24

8.12.11 TxEN_BGE Timeout (TxEN_TO)............................................................................................................................................ 24

8.12.12 Error Flag (ERROR) ............................................................................................................................................................... 24

8.13 Status Flags Description....................................................................................................................................................................... 24

8.13.1 Local Wake Flag (LWAKE)....................................................................................................................................................... 24

8.13.2 Remote Wake Flag (RWAKE) .................................................................................................................................................. 24

8.13.3 Power on Flag (PWON) ............................................................................................................................................................ 25

8.14 Error Flags and Status Flags Read-Out ............................................................................................................................................... 25

8.14.1 Error and Status Flag Bit Order ................................................................................................................................................ 25

8.15 Bus Driver............................................................................................................................................................................................. 26

8.15.1 Bus States ................................................................................................................................................................................ 26

8.16 Transceiver Timing ............................................................................................................................................................................... 27

8.17 Transmitter............................................................................................................................................................................................ 28

8.18 Receiver ............................................................................................................................................................................................... 30

8.18.1 Bus Activity and Idle Detection (only in NORMAL and RECEIVE-ONLY mode) ...................................................................... 30

8.18.2 Bus Data Detection (only in NORMAL and RECEIVE-ONLY mode)........................................................................................ 30

8.18.3 Receiver Test Signal................................................................................................................................................................. 32

8.19 Test Circuits.......................................................................................................................................................................................... 33

9 Appendix.................................................................................................................................................................................... 34

9.1 FlexRay Functional Classes ................................................................................................................................................................... 34

9.2 FlexRay Parameter Comparison ............................................................................................................................................................ 34

10 Package Drawings and Markings.......................................................................................................................................... 41

10.1 Revision History.................................................................................................................................................................................... 42

11 Ordering Information .............................................................................................................................................................. 43