mc9s12q128 Freescale Semiconductor, Inc, mc9s12q128 Datasheet - Page 379

• Manufacturer Part Number: mc9s12q128
• Description: Hcs12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 13
Serial Communications Interface (S12SCIV2)
Block Description
13.1
asynchronous serial communications with peripheral devices and other CPUs.
13.1.1
IRQ — Interrupt Request
LSB — Least Significant Bit
MSB — Most Significant Bit
NRZ — Non-Return-to-Zero
RZI — Return-to-Zero-Inverted
RXD — Receive Pin
SCI — Serial Communication Interface
TXD — Transmit Pin
13.1.2
The SCI includes these distinctive features:
Freescale Semiconductor
This block guide provide an overview of serial communication interface (SCI) module. The SCI allows
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Full-duplex operation
Standard mark/space non-return-to-zero (NRZ) format
13-bit baud rate selection
Programmable 8-bit or 9-bit data format
Separately enabled transmitter and receiver
Programmable transmitter output parity
Two receiver wake up methods:
— Idle line wake-up
— Address mark wake-up
Interrupt-driven operation with eight flags:
— Transmitter empty
Introduction
Glossary
Features
MC9S12Q128
Rev 1.09
379