mc68hc705c4acfn Freescale Semiconductor, Inc, mc68hc705c4acfn Datasheet - Page 115

• Manufacturer Part Number: mc68hc705c4acfn
• Description: M68hc05 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

10.1 Contents
10.2 Introduction
MC68HC705C4A • MC68HSC705C4A — Rev. 3.0
MOTOROLA
Technical Data — MC68HC705C4A • MC68HSC705C4A
Section 10. Serial Communications Interface (SCI)
10.2
10.3
10.4
10.5
10.5.1
10.5.2
10.6
10.6.1
10.6.2
10.6.3
10.6.4
10.6.5
The serial communications interface (SCI) module allows high-speed
asynchronous communication with peripheral devices and other
microcontroller units (MCUs).
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
SCI Data Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
SCI Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117
SCI I/O Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Serial Communications Interface (SCI)
Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117
Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
SCI Data Register (SCDR). . . . . . . . . . . . . . . . . . . . . . . . . 123
SCI Control Register 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . .124
SCI Control Register 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . .125
SCI Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Baud Rate Register (Baud) . . . . . . . . . . . . . . . . . . . . . . . . 130
Technical Data
115