MC68HC08AZ60A Datasheet, PDF (210/480 Pages) Motorola, Inc – Microcontrollers

Serial Communications Interface (SCI)
16.9 I/O Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
16.9.1 SCI Control Register 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
16.9.2 SCI Control Register 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
16.9.3 SCI Control Register 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
16.9.4 SCI Status Register 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
16.9.5 SCI Status Register 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
16.9.6 SCI Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
16.9.7 SCI Baud Rate Register . . . . . . . . . . . . . . . . . . . . . . . . . . 245
16.2 Introduction
The SCI allows asynchronous communications with peripheral devices
and other MCUs.
16.3 Features
The SCI module’s features include:
• Full Duplex Operation
• Standard Mark/Space Non-Return-to-Zero (NRZ) Format
• 32 Programmable Baud Rates
• Programmable 8-Bit or 9-Bit Character Length
• Separately Enabled Transmitter and Receiver
• Separate Receiver and Transmitter CPU Interrupt Requests
• Programmable Transmitter Output Polarity
• Two Receiver Wakeup Methods:
– Idle Line Wakeup
– Address Mark Wakeup
• Interrupt-Driven Operation with Eight Interrupt Flags:
– Transmitter Empty
– Transmission Complete
– Receiver Full
Advance Information
210
Serial Communications Interface (SCI)
MC68HC08AZ60A — Rev 0.0
MOTOROLA