Freescale Semiconductor MPC8260 - Manual (Page 29)

MPC8260 PowerQUICC II Family Reference Manual, Rev. 2
Freescale Semiconductor xxvii
Contents
Paragraph
Number
Title
Page
Number
Chapter 27
Serial Management Controllers (SMCs)
27.1 Features .......................................................................................................................... 27-2
27.2 Common SMC Settings and Configurations ................................................................. 27-2
27.2.1 SMC Mode Registers (SMCMR1/SMCMR2)........................................................... 27-2
27.2.2 SMC Buffer Descriptor Operation............................................................................. 27-4
27.2.3 SMC Parameter RAM................................................................................................ 27-5
27.2.3.1 SMC Function Code Registers (RFCR/TFCR) ..................................................... 27-8
27.2.4 Disabling SMCs On-the-Fly ...................................................................................... 27-8
27.2.4.1 SMC Transmitter Full Sequence............................................................................ 27-9
27.2.4.2 SMC Transmitter Shortcut Sequence .................................................................... 27-9
27.2.4.3 SMC Receiver Full Sequence ................................................................................ 27-9
27.2.4.4 SMC Receiver Shortcut Sequence......................................................................... 27-9
27.2.4.5 Switching Protocols ............................................................................................... 27-9
27.2.5 Saving Power ........................................................................................................... 27-10
27.2.6 Handling Interrupts in the SMC............................................................................... 27-10
27.3 SMC in UART Mode ................................................................................................... 27-10
27.3.1 Features .................................................................................................................... 27-11
27.3.2 SMC UART Channel Transmission Process ........................................................... 27-11
27.3.3 SMC UART Channel Reception Process................................................................. 27-11
27.3.4 Programming the SMC UART Controller ............................................................... 27-11
27.3.5 SMC UART Transmit and Receive Commands ...................................................... 27-12
27.3.6 Sending a Break ....................................................................................................... 27-12
27.3.7 Sending a Preamble ................................................................................................. 27-13
27.3.8 Handling Errors in the SMC UART Controller ....................................................... 27-13
27.3.9 SMC UART RxBD .................................................................................................. 27-13
27.3.10 SMC UART TxBD .................................................................................................. 27-17
27.3.11 SMC UART Event Register (SMCE)/Mask Register (SMCM) .............................. 27-18
27.3.12 SMC UART Controller Programming Example...................................................... 27-19
27.4 SMC in Transparent Mode........................................................................................... 27-20
27.4.1 Features .................................................................................................................... 27-20
27.4.2 SMC Transparent Channel Transmission Process ................................................... 27-21
27.4.3 SMC Transparent Channel Reception Process ........................................................ 27-21
27.4.4 Using SMSYN for Synchronization ........................................................................ 27-22
27.4.5 Using the Time-Slot Assigner (TSA) for Synchronization...................................... 27-23
27.4.6 SMC Transparent Commands.................................................................................. 27-25
27.4.7 Handling Errors in the SMC Transparent Controller............................................... 27-25
27.4.8 SMC Transparent RxBD.......................................................................................... 27-26
27.4.9 SMC Transparent TxBD .......................................................................................... 27-27
27.4.10 SMC Transparent Event Register (SMCE)/Mask Register (SMCM)...................... 27-28