Motorola Freescale Semiconductor M-Core MMC2001 Reference Manual page 8

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UNIVERSAL ASYNCHRONOUS RECEIVER/TRANSMITTER MODULE
11.1 Overview ........................................................................................................ 11-1
11.2 UART Signals................................................................................................. 11-2
11.2.1 RTS - Request to Send (UART0).............................................................. 11-2
11.2.2 CTS - Clear to Send (UART0) .................................................................. 11-2
11.2.3 TXD - UART Transmit............................................................................... 11-3
11.2.4 RXD - UART Receive ............................................................................... 11-3
11.3 Sub-Block Description.................................................................................... 11-3
11.3.1 Transmitter .................................................................................................. 11-3
11.3.2 Receiver ...................................................................................................... 11-3
11.3.3 Infrared Interface ......................................................................................... 11-4
11.3.4 16x Bit Clock Generator .............................................................................. 11-4
11.3.5 General UART Definitions ........................................................................... 11-4
11.4 UART Programming Model ............................................................................ 11-5
11.4.1 UART Receive Register (URX) ................................................................... 11-7
11.4.2 UART Transmitter Register (UTX) .............................................................. 11-8
11.4.3 UART Control Register 1 (UCR1) ............................................................... 11-9
11.4.4 UART Control Register 2 (UCR2) ............................................................. 11-11
11.4.5 UART BRG Register (UBRGR) ................................................................. 11-13
11.4.6 UART Status Register (USR) ................................................................... 11-14
11.4.7 UART Test Register (UTS)........................................................................ 11-15
11.5 GPIO Pins and Registers ............................................................................. 11-16
11.5.1 UART Port Control Register (UPCR) ........................................................ 11-16
11.5.2 UART Data Direction Register (UDDR)..................................................... 11-16
11.5.3 UART Port Data Register (UPDR) ............................................................ 11-17
11.6 Data Sampling Technique on the Receiver.................................................. 11-17
11.7 UART Operation in Low-Power System Modes ........................................... 11-23
11.8 UART Operation in System Debug Mode .................................................... 11-24
INTERVAL MODE SERIAL PERIPHERAL INTERFACE
12.1 Overview ........................................................................................................ 12-1
12.2 Operation ....................................................................................................... 12-1
12.2.1 Manual (Master) Mode ................................................................................ 12-2
12.2.2 Interval (Master) Mode ................................................................................ 12-3
12.2.3 Slave Mode ................................................................................................. 12-3
12.3 Signal Descriptions ........................................................................................ 12-3
12.3.1 SPI_MISO (Master In, Slave Out) ............................................................... 12-3
12.3.2 SPI_MOSI (Master Out, Slave In) ............................................................... 12-4
12.3.3 SPI_EN........................................................................................................ 12-4
12.3.4 SPI_CLK...................................................................................................... 12-4
12.3.5 SPI_GP ....................................................................................................... 12-4
MMC2001
REFERENCE MANUAL
All manuals and user guides at all-guides.com
Freescale Semiconductor, Inc.
TABLE OF CONTENTS
Title
SECTION 11
SECTION 12
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