mc68hc08ln56 Freescale Semiconductor, Inc, mc68hc08ln56 Datasheet - Page 135

• Manufacturer Part Number: mc68hc08ln56
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 12
Serial Communications Interface Module (SCI)
12.1 Introduction
The SCI allows asynchronous communications with peripheral devices and other MCUs.
12.2 Features
Features of the SCI module include:
Freescale Semiconductor
•
•
•
•
•
•
•
•
•
•
•
•
•
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
Separate Receiver and Transmitter DMA Service Requests
Programmable Transmitter Output Polarity
Two Receiver Wake-Up Methods:
–
–
Interrupt-Driven Operation with Eight Interrupt Flags:
–
–
–
–
–
–
–
–
Receiver Framing Error Detection
Hardware Parity Checking
1/16 Bit-Time Noise Detection
Idle Line Wake-Up
Address Mark Wake-Up
Transmitter Empty
Transmission Complete
Receiver Full
Idle Receiver Input
Receiver Overrun
Noise Error
Framing Error
Parity Error
References to DMA and associated functions are only valid if the MCU has
a DMA module. If the MCU has no DMA, any DMA related register bits
should be left in their reset state for expected MCU operation.
MC68HC08LN56 • MC68HC708LN56 General Release Specification, Rev. 2.1
NOTE
135