Freescale Semiconductor PowerQUICC MPC885 Reference Manual page 25

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Number
23.13 SCC HDLC Programming Examples .......................................................................... 23-14
23.13.1 SCC HDLC Programming Example #1................................................................... 23-14
23.13.2 SCC HDLC Programming Example #2................................................................... 23-16
23.14 HDLC Bus Mode with Collision Detection................................................................. 23-16
23.14.1 HDLC Bus Features................................................................................................. 23-18
23.14.2 Accessing the HDLC Bus ........................................................................................ 23-18
23.14.3 Increasing Performance ........................................................................................... 23-19
23.14.4 Delayed RTS Mode.................................................................................................. 23-20
23.14.5 Using the Time-Slot Assigner (TSA) ...................................................................... 23-21
23.14.6 HDLC Bus Protocol Programming.......................................................................... 23-21
23.14.6.1 Programming GSMR and PSMR for the HDLC Bus Protocol ........................... 23-21
23.14.6.2 HDLC Bus Controller Programming Example.................................................... 23-22
24.1 Operating the LocalTalk Bus ......................................................................................... 24-1
24.2 Features .......................................................................................................................... 24-2
24.3 Connecting to AppleTalk ............................................................................................... 24-2
24.4 Programming the SCC in AppleTalk Mode................................................................... 24-3
24.4.1 Programming the GSMR ........................................................................................... 24-3
24.4.2 Programming the PSMR............................................................................................ 24-4
24.4.3 Programming the TODR............................................................................................ 24-4
24.4.4 SCC AppleTalk Programming Example.................................................................... 24-4
25.1 Asynchronous HDLC Features ...................................................................................... 25-1
25.2 Asynchronous HDLC Frame Transmission Processing................................................. 25-1
25.3 Asynchronous HDLC Frame Reception Processing...................................................... 25-2
25.4 Transmitter Transparency Encoding .............................................................................. 25-2
25.5 Receiver Transparency Decoding .................................................................................. 25-3
25.6 Exceptions to RFC 1549 ................................................................................................ 25-4
25.7 Asynchronous HDLC Channel Implementation............................................................ 25-4
25.8 Asynchronous HDLC Mode Parameter RAM............................................................... 25-5
25.9 Configuring GSMR and DSR for Asynchronous HDLC .............................................. 25-6
25.9.1 General SCC Mode Register (GSMR)....................................................................... 25-6
25.9.2 Data Synchronization Register (DSR)....................................................................... 25-6
25.10 Programming the Asynchronous HDLC Controller ...................................................... 25-6
25.11 Asynchronous HDLC Commands ................................................................................. 25-6
Freescale Semiconductor
Contents
Title
Chapter 24
SCC AppleTalk Mode
Chapter 25
SCC Asynchronous HDLC Mode and IrDA
MPC885 PowerQUICC Family Reference Manual, Rev. 2
Page
Number
xxv