Motorola PowerQUICC II MPC8280 Series Reference Manual page 26

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Number
20.3.4 Initializing the SCCs.................................................................................... 20-17
20.3.5 Controlling SCC Timing with RTS, CTS, and CD...................................... 20-18
20.3.5.1 Synchronous Protocols ............................................................................ 20-18
20.3.5.2 Asynchronous Protocols .......................................................................... 20-21
20.3.6 Digital Phase-Locked Loop (DPLL) Operation........................................... 20-22
20.3.6.1 Encoding Data with a DPLL.................................................................... 20-24
20.3.7 Reconfiguring the SCCs .............................................................................. 20-26
20.3.7.1 General Reconfiguration Sequence for an SCC Transmitter................... 20-26
20.3.7.2 Reset Sequence for an SCC Transmitter.................................................. 20-26
20.3.7.3 General Reconfiguration Sequence for an SCC Receiver ....................... 20-26
20.3.7.4 Reset Sequence for an SCC Receiver...................................................... 20-27
20.3.7.5 Switching Protocols ................................................................................. 20-27
20.3.8 Saving Power ............................................................................................... 20-27
21.1 Features .............................................................................................................. 21-2
21.2 Normal Asynchronous Mode............................................................................. 21-3
21.3 Synchronous Mode ............................................................................................ 21-3
21.4 SCC UART Parameter RAM ............................................................................. 21-4
21.5 Data-Handling Methods: Character- or Message-Based ................................... 21-5
21.6 Error and Status Reporting................................................................................. 21-6
21.7 SCC UART Commands ..................................................................................... 21-6
21.8 Multidrop Systems and Address Recognition ................................................... 21-7
21.9 Receiving Control Characters ............................................................................ 21-8
21.10 Hunt Mode (Receiver) ..................................................................................... 21-10
21.11 Inserting Control Characters into the Transmit Data Stream........................... 21-10
21.12 Sending a Break (Transmitter)......................................................................... 21-11
21.13 Sending a Preamble (Transmitter) ................................................................... 21-11
21.14 Fractional Stop Bits (Transmitter) ................................................................... 21-11
21.15 Handling Errors in the SCC UART Controller ................................................ 21-12
21.16 UART Mode Register (PSMR)........................................................................ 21-14
21.17 SCC UART Receive Buffer Descriptor (RxBD) ............................................. 21-16
21.18 SCC UART Transmit Buffer Descriptor (TxBD) ............................................ 21-19
21.19 SCC UART Event Register (SCCE) and Mask Register (SCCM) .................. 21-20
21.20 SCC UART Status Register (SCCS)................................................................ 21-22
21.21 SCC UART Programming Example ................................................................ 21-23
21.22 S-Records Loader Application......................................................................... 21-24
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Freescale Semiconductor, Inc.
Contents
Title
Chapter 21
SCC UART Mode
MPC8280 PowerQUICC II Family Reference Manual
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