Motorola MC68HC908MR32 사용자 설명서
Advance Information
MC68HC908MR16/MC68HC908MR32 — Rev. 4.0
292
Serial Communications Interface Module (SCI)
MOTOROLA
Serial Communications Interface Module (SCI)
14.7.2 PTF4/RxD (Receive Data)
The PTF4/RxD pin is the serial data input to the SCI receiver. The SCI
shares the PTF4/RxD pin with port E. When the SCI is enabled, the
PTF4/RxD pin is an input regardless of the state of the DDRF4 bit in data
direction register F (DDRF).
shares the PTF4/RxD pin with port E. When the SCI is enabled, the
PTF4/RxD pin is an input regardless of the state of the DDRF4 bit in data
direction register F (DDRF).
14.8 I/O Registers
These I/O registers control and monitor SCI operation:
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SCI control register 1 (SCC1)
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SCI control register 2 (SCC2)
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SCI control register 3 (SCC3)
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SCI status register 1 (SCS1)
•
SCI status register 2 (SCS2)
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SCI data register (SCDR)
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SCI baud rate register (SCBR)
14.8.1 SCI Control Register 1
SCI control register 1 (SCC1):
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Enables loop-mode operation
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Enables the SCI
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Controls output polarity
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Controls character length
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Controls SCI wakeup method
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Controls idle character detection
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Enables parity function
•
Controls parity type