Motorola MPC860 PowerQUICC User Manual page 21

Paragraph
Number
21.2.6.2.2
21.2.6.3 GCI Interface (SCIT Mode) Programming Example...............................21-35
21.3 NMSI Configuration ........................................................................................21-36
21.4 Baud Rate Generators (BRGs) .........................................................................21-39
21.4.1 Baud Rate Generator Configuration Registers (BRGCn) ............................21-40
21.4.2 Autobaud Operation on a UART .................................................................21-41
21.4.3 UART Baud Rate Examples ........................................................................21-42
22.1 Features ..............................................................................................................22-2
22.1.1 General SCC Mode Register (GSMR)...........................................................22-3
22.1.2 Protocol-Specific Mode Register (PSMR)...................................................22-10
22.1.3 Data Synchronization Register (DSR) .........................................................22-10
22.1.4 Transmit-on-Demand Register (TODR) ......................................................22-10
22.2 SCC Buffer Descriptors (BDs).........................................................................22-11
22.3 SCC Parameter RAM .......................................................................................22-14
22.3.1 Function Code Registers (RFCR and TFCR)...............................................22-16
22.3.2 Handling SCC Interrupts..............................................................................22-16
22.3.3 Initializing the SCCs ....................................................................................22-17
22.3.4 Controlling SCC Timing with RTS, CTS, and CD......................................22-18
22.3.4.1 Synchronous Protocols.............................................................................22-18
22.3.4.2 Asynchronous Protocols ..........................................................................22-21
22.3.5 Digital Phase-Locked Loop (DPLL) Operation...........................................22-22
22.3.5.1 Encoding Data with a DPLL ....................................................................22-24
22.3.6 Clock Glitch Detection.................................................................................22-25
22.3.7 Reconfiguring the SCCs...............................................................................22-26
22.3.7.1 General Reconfiguration Sequence for an SCC Transmitter ...................22-26
22.3.7.2 Reset Sequence for an SCC Transmitter..................................................22-27
22.3.7.3 General Reconfiguration Sequence for an SCC Receiver .......................22-27
22.3.7.4 Reset Sequence for an SCC Receiver ......................................................22-27
22.3.7.5 Switching Protocols .................................................................................22-27
22.3.8 Saving Power ...............................................................................................22-27
23.1 Features ..............................................................................................................23-2
23.2 Normal Asynchronous Mode .............................................................................23-3
23.3 Synchronous Mode.............................................................................................23-3
23.4 SCC UART Parameter RAM .............................................................................23-4
MOTOROLA
CONTENTS
SCIT Mode...........................................................................................21-34
Chapter 22
Serial Communications Controllers
Chapter 23
SCC UART Mode
Title
Contents
Page
Number
xxi