mcf5272 Freescale Semiconductor, Inc, mcf5272 Datasheet - Page 16

• Manufacturer Part Number: mcf5272
• Description: Mcf5272 Coldfire Integrated Microprocessor User
• Manufacturer: Freescale Semiconductor, Inc

Paragraph
Number
16.3.13
16.3.14
16.3.15
16.3.16
16.3.17
16.4
16.5
16.5.1
16.5.1.1
16.5.1.2
16.5.1.2.1
16.5.1.2.2
16.5.1.2.3
16.5.2
16.5.2.1
16.5.2.2
16.5.2.3
16.5.2.4
16.5.3
16.5.3.1
16.5.3.2
16.5.3.3
16.5.4
16.5.5
16.5.5.1
16.5.5.2
16.5.5.3
16.5.6
16.5.6.1
17.1
17.2
17.2.1
17.2.2
17.2.3
17.2.4
17.3
17.3.1
17.3.2
xvi
UART Module Signal Definitions .................................................................. 16-19
Operation......................................................................................................... 16-20
Overview........................................................................................................... 17-1
Port Control Registers....................................................................................... 17-2
Data Direction Registers ................................................................................... 17-9
UART Transmitter FIFO Registers (UTFn) ............................................... 16-15
UART Receiver FIFO Registers (URFn) ................................................... 16-16
UART Fractional Precision Divider Control Registers (UFPDn) .............. 16-17
UART Input Port Registers (UIPn) ............................................................ 16-18
UART Output Port Command Registers (UOP1n/UOP0n) ....................... 16-18
Transmitter/Receiver Clock Source............................................................ 16-20
Transmitter and Receiver Operating Modes............................................... 16-23
Looping Modes ........................................................................................... 16-28
Multidrop Mode.......................................................................................... 16-29
Bus Operation ............................................................................................. 16-31
Programming .............................................................................................. 16-31
Port A Control Register (PACNT)................................................................ 17-2
Port B Control Register (PBCNT) ................................................................ 17-5
Port C Control Register................................................................................. 17-8
Port D Control Register (PDCNT)................................................................ 17-8
Port A Data Direction Register (PADDR).................................................. 17-10
Port B Data Direction Register (PBDDR) .................................................. 17-10
Programmable Divider............................................................................ 16-20
Calculating Baud Rates........................................................................... 16-21
Transmitting ........................................................................................... 16-23
Receiver .................................................................................................. 16-25
Transmitter FIFO .................................................................................... 16-26
Receiver FIFO ....................................................................................... 16-26
Automatic Echo Mode ............................................................................ 16-28
Local Loop-Back Mode .......................................................................... 16-28
Remote Loop-Back Mode....................................................................... 16-29
Read Cycles ............................................................................................ 16-31
Write Cycles ........................................................................................... 16-31
Interrupt Acknowledge Cycles ............................................................... 16-31
UART Module Initialization Sequence .................................................. 16-32
CLKIN Baud Rates............................................................................. 16-21
External Clock .................................................................................... 16-22
Autobaud Detection ............................................................................ 16-22
General Purpose I/O Module
MCF5272 User’s Manual
CONTENTS
Chapter 17
Title
MOTOROLA
Number
Page