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MC68HC08AS32 Datasheet, PDF (155/280 Pages) Motorola, Inc – M68HC08 Family of 8-bit microcontroller units (MCUs) | |||
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Data Sheet â MC68HC08AS32
Section 12. Serial Communications Interface (SCI)
12.1 Introduction
This section describes the serial communications interface module (SCI,
Version D), which allows high-speed asynchronous communications with
peripheral devices and other MCUs.
12.2 Features
Features of the SCI module 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:
â Idle line wakeup
â Address mark wakeup
⢠Interrupt-driven operation with eight interrupt flags:
â Transmitter empty
â Transmission complete
â Receiver full
â Idle receiver input
â Receiver overrun
â Noise error
â Framing error
â Parity error
⢠Receiver framing error detection
⢠Hardware parity checking
⢠1/16 bit-time noise detection
MC68HC08AS32 â Rev. 4.1
Freescale Semiconductor
Data Sheet
155
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