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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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M16C/29 Scheda tecnica(PDF) 326 Page - Renesas Technology Corp |
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M16C/29 Scheda tecnica(HTML) 326 Page - Renesas Technology Corp |
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326 / 499 page  17. CAN Module p u o r G 9 2 / C 6 1 M page 302 8 5 4 f o 7 0 0 2 , 0 3 .r a M 2 1 . 1 . v e R 2 1 1 0 - 1 0 1 0 B 9 0 J E R 17.2.4 CAN Interface Sleep Mode The CAN interface sleep mode is activated by setting the CCLK3 bit in the CCLKR register to 1. It should never be activated but only via the CAN sleep mode. Entering the CAN interface sleep mode instantly stops the clock supply to the CPU Interface in the mod- ule and thereby reduces power dissipation. 17.2.5 Bus Off State The bus off state is entered according to the fault confinement rules of the CAN specification. When returning to the CAN operating mode from the bus off state, the module has the following two cases. In this time, the value of any CAN registers, except registers C0STR, C0RECR, and C0TECR, does not change. (1) When 11 consecutive recessive bits are detected 128 times The module enters instantly into error active state and the CAN communication becomes possible immediately. (2) When the RetBusOff bit in the C0CTLR register = 1 (Force return from buss off) The module enters instantly into error active state, and the CAN communication becomes possible again after 11 consecutive recessive bits are detected. |
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