BRESTP=B_0x0, LSTN=B_0x0, LBPEGEN=B_0x0, RXTOL=B_0x0, BRDNOGEN=B_0x0, BREGEN=B_0x0, SFTOP=B_0x0
This register is used to configure the HDMI-CEC controller. It is mandatory to write CEC_CFGR only when CECEN=0.
| SFT | Signal free time 1 (B_0x1): 0.5 nominal data bit periods 2 (B_0x2): 1.5 nominal data bit periods 3 (B_0x3): 2.5 nominal data bit periods 4 (B_0x4): 3.5 nominal data bit periods 5 (B_0x5): 4.5 nominal data bit periods 6 (B_0x6): 5.5 nominal data bit periods 7 (B_0x7): 6.5 nominal data bit periods |
| RXTOL | Rx-tolerance 0 (B_0x0): Standard tolerance margin: 1 (B_0x1): Extended tolerance |
| BRESTP | Rx-stop on bit rising error The BRESTP bit is set and cleared by software. 0 (B_0x0): BRE detection does not stop reception of the CEC message. Data bit is sampled at 1.05 ms. 1 (B_0x1): BRE detection stops message reception. |
| BREGEN | Generate error-bit on bit rising error 0 (B_0x0): BRE detection does not generate an error-bit on the CEC line. 1 (B_0x1): BRE detection generates an error-bit on the CEC line (if BRESTP is set). |
| LBPEGEN | Generate error-bit on long bit period error 0 (B_0x0): LBPE detection does not generate an error-bit on the CEC line. 1 (B_0x1): LBPE detection generates an error-bit on the CEC line. |
| BRDNOGEN | Avoid error-bit generation in broadcast 0 (B_0x0): BRE detection with BRESTP = 1 and BREGEN = 0 on a broadcast message generates an 1 (B_0x1): Error-bit is not generated in the same condition as above. An error-bit is not generated even in case of an SBPE detection in a broadcast message if listen mode is set. |
| SFTOP | SFT option bit The SFTOPT bit is set and cleared by software. 0 (B_0x0): SFT timer starts when TXSOM is set by software. 1 (B_0x1): SFT timer starts automatically at the end of message transmission/reception. |
| OAR | Own addresses configuration |
| LSTN | Listen mode LSTN bit is set and cleared by software. 0 (B_0x0): CEC peripheral receives only message addressed to its own address (OAR). Messages addressed to different destination are ignored. Broadcast messages are always received. 1 (B_0x1): CEC peripheral receives messages addressed to its own address (OAR) with positive acknowledge. Messages addressed to different destination are received, but without interfering with the CEC bus: no acknowledge sent. |