Motorola PowerQUICC II MPC8280 Series Reference Manual page 27

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Number
22.1 SCC HDLC Features ......................................................................................... 22-2
22.2 SCC HDLC Channel Frame Transmission ........................................................ 22-2
22.3 SCC HDLC Channel Frame Reception ............................................................. 22-3
22.4 SCC HDLC Parameter RAM............................................................................. 22-3
22.5 Programming the SCC in HDLC Mode............................................................. 22-5
22.6 SCC HDLC Commands..................................................................................... 22-5
22.7 Handling Errors in the SCC HDLC Controller.................................................. 22-6
22.8 HDLC Mode Register (PSMR).......................................................................... 22-7
22.9 SCC HDLC Receive Buffer Descriptor (RxBD) ............................................... 22-9
22.10 SCC HDLC Transmit Buffer Descriptor (TxBD)............................................ 22-12
22.11 HDLC Event Register (SCCE)/HDLC Mask Register (SCCM) ..................... 22-13
22.12 SCC HDLC Status Register (SCCS)................................................................ 22-15
22.13 SCC HDLC Programming Examples .............................................................. 22-16
22.14 SCC HDLC Programming Example #1........................................................... 22-16
22.14.1 SCC HDLC Programming Example #2....................................................... 22-18
22.15 HDLC Bus Mode with Collision Detection..................................................... 22-18
22.15.1 HDLC Bus Features..................................................................................... 22-21
22.15.2 Accessing the HDLC Bus ............................................................................ 22-21
22.15.3 Increasing Performance ............................................................................... 22-22
22.15.4 Delayed RTS Mode...................................................................................... 22-23
22.15.5 Using the Time-Slot Assigner (TSA) .......................................................... 22-24
22.15.6 HDLC Bus Protocol Programming.............................................................. 22-25
22.15.6.1 Programming GSMR and PSMR for the HDLC Bus Protocol ............... 22-25
22.15.6.2 HDLC Bus Controller Programming Example........................................ 22-25
23.1 Features .............................................................................................................. 23-2
23.2 SCC BISYNC Channel Frame Transmission .................................................... 23-2
23.3 SCC BISYNC Channel Frame Reception ......................................................... 23-3
23.4 SCC BISYNC Parameter RAM ......................................................................... 23-3
23.5 SCC BISYNC Commands ................................................................................. 23-5
23.6 SCC BISYNC Control Character Recognition.................................................. 23-6
23.7 BISYNC SYNC Register (BSYNC).................................................................. 23-7
23.8 SCC BISYNC DLE Register (BDLE) ............................................................... 23-8
23.9 Sending and Receiving the Synchronization Sequence ..................................... 23-9
23.10 Handling Errors in the SCC BISYNC ............................................................... 23-9
23.11 BISYNC Mode Register (PSMR).................................................................... 23-10
MOTOROLA
Freescale Semiconductor, Inc.
Contents
Title
Chapter 22
SCC HDLC Mode
Chapter 23
SCC BISYNC Mode
Contents
For More Information On This Product,
Go to: www.freescale.com
Page
Number
xxvii