MC908GR8CDWE Datasheet, PDF (252/408 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

Freescale Semiconductor, Inc.
Serial Communications Interface (SCI)
18.8.2 PE1/RxD (Receive Data)
The PE1/RxD pin is the serial data input to the SCI receiver. The SCI
shares the PE1/RxD pin with port E. When the SCI is enabled, the
PE1/RxD pin is an input regardless of the state of the DDRE1 bit in data
direction register E (DDRE).
18.9 I/O Registers
These I/O registers control and monitor SCI operation:
• SCI control register 1 (SCC1)
• SCI control register 2 (SCC2)
• SCI control register 3 (SCC3)
• SCI status register 1 (SCS1)
• SCI status register 2 (SCS2)
• SCI data register (SCDR)
• SCI baud rate register (SCBR)
18.9.1 SCI Control Register 1
SCI control register 1:
• Enables loop mode operation
• Enables the SCI
• Controls output polarity
• Controls character length
• Controls SCI wakeup method
• Controls idle character detection
• Enables parity function
• Controls parity type
Technical Data
252
MC68HC908GR8 — Rev 4.0
Serial Communications Interface (SCI)
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