Table of Contents
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Chapter 13
13.1 Overview ........................................................................................................................................ 13-1
13.2 Features.......................................................................................................................................... 13-1
13.3 Console UART Special Registers .................................................................................................... 13-3
13.3.1 Console UART Control Registers ......................................................................................... 13-4
13.3.2 Console UART Status Registers .......................................................................................... 13-8
13.3.3 Console UART Interrupt Enable Register ............................................................................. 13-11
13.3.4 UART Transmit Data Register.............................................................................................. 13-13
13.3.5 UART Receive Data Register............................................................................................... 13-14
13.3.6 UART Baud Rate Divisor Register ....................................................................................... 13-15
13.3.7 Console UART Baud Rate Examples ................................................................................... 13-16
13.3.8 UART Control Character Register 1 and 2............................................................................ 13-17
Chapter 14Serial I/O (High-Speed UART)
14.1 Overview ........................................................................................................................................ 14-1
14.2 Features.......................................................................................................................................... 14-1
14.3 High-Speed UART Special Registers .............................................................................................. 14-3
14.3.1 High-Speed UART Control Registers ................................................................................... 14-4
14.3.2 High-Speed UART Status Registers..................................................................................... 14-9
14.3.3 High-Speed UART Interrupt Enable Register ....................................................................... 14-14
14.3.4 High-Speed UART Transmit Buffer Register ........................................................................ 14-16
14.3.5 High-Speed UART Receive Buffer Register ......................................................................... 14-17
14.3.6 High-Speed UART Baud Rate Divisor Register .................................................................... 14-18
14.3.7 High-Speed UART Baud Rate Examples ............................................................................. 14-19
14.3.8 High-Speed UART Control Character 1 Register.................................................................. 14-20
14.3.9 High-Speed UART Control Character 2 Register.................................................................. 14-21
14.3.10 High-Speed UART Autoband Boundary Register................................................................ 14-22
14.3.11 High-Speed UART Autobaud Table Regsiter...................................................................... 14-23
14.4 High-Speed UART Operation .......................................................................................................... 14-24
14.4.1 FIFO Operation.................................................................................................................... 14-24
14.4.2 Hardware Flow Control......................................................................................................... 14-24
14.4.3 Software Flow Control.......................................................................................................... 14-26
14.4.4 Auto Baud Rate Detection.................................................................................................... 14-26
Chapter 15I/O Ports
15.1 Overview ........................................................................................................................................ 15-1
15.2 Features.......................................................................................................................................... 15-1
15.3 I/O Port Special Register................................................................................................................. 15-2
15.3.1 I/O Port Mode Select Register.............................................................................................. 15-3
15.3.2 I/O Port Function Control Register ....................................................................................... 15-5
15.3.3 I/O Port Control Register for GDMA ..................................................................................... 15-8
15.3.4 I/O Port Control Register for External Interrupt..................................................................... 15-9
15.3.5 I/O Port External Interrupt Clear Register............................................................................. 15-11
15.3.6 I/O Port Data Register.......................................................................................................... 15-12
15.3.7 I/O Port Drive Control Register ............................................................................................ 15-12
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Table of Contents
(Continued)
S3C2500B RISC MICROCONTROLLER
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