s908ab32ag0cfue Freescale Semiconductor, Inc, s908ab32ag0cfue Datasheet - Page 240

• Manufacturer Part Number: s908ab32ag0cfue
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Serial Communications Interface
15.2 Introduction
15.3 Features
Technical Data
240
NOTE:
15.8.2
15.9
15.9.1
15.9.2
15.9.3
15.9.4
15.9.5
15.9.6
15.9.7
This section describes the serial communications interface (SCI)
module, which allows high-speed asynchronous communications with
peripheral devices and other MCUs.
References to DMA (direct-memory access) and associated functions
are only valid if the MCU has a DMA module. This MCU does not have
the DMA function. Any DMA-related register bits should be left in their
reset state for normal MCU operation.
Features of the SCI module include the following:
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•
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Serial Communications Interface Module (SCI)
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
I/O Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
PTE1/RxD (Receive Data) . . . . . . . . . . . . . . . . . . . . . . . . . 260
SCI Control Register 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
SCI Control Register 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
SCI Control Register 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
SCI Status Register 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
SCI Status Register 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
SCI Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
SCI Baud Rate Register . . . . . . . . . . . . . . . . . . . . . . . . . . .275
MC68HC908AB32
Freescale Semiconductor
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Rev. 1.1