MC68HC708MP16 Datasheet, PDF (284/398 Pages) Freescale Semiconductor, Inc – Microcontrollers

Serial Communications Interface Module (SCI)
14.8 I/O Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
14.8.1 SCI Control Register 1 . . . . . . . . . . . . . . . . . . . . . . . . . . .301
14.8.2 SCI Control Register 2 . . . . . . . . . . . . . . . . . . . . . . . . . . .304
14.8.3 SCI Control Register 3 . . . . . . . . . . . . . . . . . . . . . . . . . . .307
14.8.4 SCI Status Register 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
14.8.5 SCI Status Register 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
14.8.6 SCI Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .314
14.8.7 SCI Baud Rate Register . . . . . . . . . . . . . . . . . . . . . . . . . . 314
14.2 Introduction
This section describes the serial communications interface module (SCI,
Version D), which allows high-speed asynchronous communications
with peripheral devices and other MCUs.
14.3 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
• Separate receiver and transmitter
• Programmable transmitter output polarity
• Two receiver wake-up methods:
– Idle line wake-up
– Address mark wake-up
Technical Data
284
MC68HC708MP16 — Rev. 3.1
Serial Communications Interface Module (SCI)
Freescale Semiconductor