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PEB2256HT Datasheet(PDF) 232 Page - Infineon Technologies AG |
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PEB2256HT Datasheet(HTML) 232 Page - Infineon Technologies AG |
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232 / 490 page  FALC56 V1.2 PEB 2256 E1 Registers Data Sheet 232 2002-08-27 Framer Mode Register 2 (Read/Write) Value after reset: 00 H RFS(1:0) Receive Framing Select 00 = Doubleframe format 01 = Doubleframe format 10 = CRC4 Multiframe format 11 = CRC4 Multiframe format with modified CRC4 Multiframe alignment algorithm (Interworking according to ITU-T G.706 Annex B). Setting of FMR3.EXTIW changes the reaction after the 400 ms time-out. RTM Receive Transparent Mode Setting this bit disconnects control of the internal elastic store from the receiver. The elastic store is now in a “free running” mode without any possibility to actualize the time slot assignment to a new frame position in case of resynchronization of the receiver. This function can be used together with the “disable AIS to system interface” feature (FMR2.DAIS) to realize undisturbed transparent reception. This bit should be enabled in case of unframed data reception mode. DAIS Disable AIS to System Interface 0 = AIS is automatically inserted into the data stream to RDO if FALC56 is in asynchronous state. 1 = Automatic AIS insertion is disabled. Furthermore, AIS insertion can be initiated by programming bit FMR2.SAIS. SAIS Send AIS Towards System Interface Sends AIS on output RDO towards system interface. This function is not influenced by bit FMR2.DAIS. PLB Payload Loop-Back 0 = Normal operation. Payload loop is disabled. 1 = The payload loop-back loops the data stream from the receiver section back to transmitter section. Looped data is output on pin RDO. Data received on port XDI, XSIG, SYPX and XMFS is ignored. With XSP.TT0 = 1 time slot 0 is also looped back. If XSP.TT0 = 0 time slot 0 is generated internally. AIS is sent 70 FMR2 RFS1 RFS0 RTM DAIS SAIS PLB AXRA ALMF (1E) |
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