Motorola MPC860 PowerQUICC User Manual page 22

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23.5 Data-Handling Methods: Character- or Message-Based ....................................23-5
23.6 Error and Status Reporting .................................................................................23-6
23.7 SCC UART Commands .....................................................................................23-6
23.8 Multidrop Systems and Address Recognition ....................................................23-7
23.9 Receiving Control Characters.............................................................................23-7
23.10 Hunt Mode (Receiver) ........................................................................................23-9
23.11 Inserting Control Characters into the Transmit Data Stream .............................23-9
23.12 Sending a Break (Transmitter) .........................................................................23-10
23.13 Sending a Preamble (Transmitter)....................................................................23-10
23.14 Fractional Stop Bits (Transmitter)....................................................................23-11
23.15 Handling Errors in the SCC UART Controller ................................................23-12
23.16 UART Mode Register (PSMR) ........................................................................23-13
23.17 SCC UART Receive Buffer Descriptor (RxBD)..............................................23-15
23.18 SCC UART Transmit Buffer Descriptor (TxBD) ............................................23-18
23.19 SCC UART Event Register (SCCE) and Mask Register (SCCM)...................23-19
23.20 SCC UART Status Register (SCCS) ................................................................23-21
23.21 SCC UART Programming Example.................................................................23-22
23.22 S-Records Loader Application .........................................................................23-23
24.1 SCC HDLC Features ..........................................................................................24-2
24.2 SCC HDLC Channel Frame Transmission.........................................................24-2
24.3 SCC HDLC Channel Frame Reception ..............................................................24-3
24.4 SCC HDLC Parameter RAM .............................................................................24-3
24.5 Programming the SCC in HDLC Mode .............................................................24-5
24.6 SCC HDLC Commands .....................................................................................24-5
24.7 Handling Errors in the SCC HDLC Controller ..................................................24-6
24.8 HDLC Mode Register (PSMR) ..........................................................................24-7
24.9 SCC HDLC Receive Buffer Descriptor (RxBD)................................................24-8
24.10 SCC HDLC Transmit Buffer Descriptor (TxBD) ............................................24-11
24.11 HDLC Event Register (SCCE)/HDLC Mask Register (SCCM) ......................24-12
24.12 SCC HDLC Status Register (SCCS) ................................................................24-14
24.13 SCC HDLC Programming Examples ...............................................................24-14
24.13.1 SCC HDLC Programming Example #1 .......................................................24-15
24.13.2 SCC HDLC Programming Example #2 .......................................................24-16
24.14 HDLC Bus Mode with Collision Detection .....................................................24-16
24.14.1 HDLC Bus Features .....................................................................................24-19
24.14.2 Accessing the HDLC Bus.............................................................................24-19
24.14.3 Increasing Performance ................................................................................24-20
24.14.4 Delayed RTS Mode ......................................................................................24-21
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CONTENTS
Title
Chapter 24
SCC HDLC Mode
MPC860 PowerQUICC UserÕs Manual
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Number
MOTOROLA