Freescale Semiconductor, Inc.
Serial Communications Interface (SCI)
Pin Name Conventions
• Interrupt-driven operation with eight interrupt flags:
– Transmitter empty
– Transmission complete
– Receiver full
– Idle receiver input
– Receiver overrun
– Noise error
– Framing error
– Parity error
• Receiver framing error detection
• Hardware parity checking
• 1/16 bit-time noise detection
17.4 Pin Name Conventions
The generic names of the SCI input/output (I/O) pins are:
• RxD (receive data)
• TxD (transmit data)
SCI I/O lines are implemented by sharing parallel I/O port pins. The full
name of an SCI input or output reflects the name of the shared port pin.
Table 17-1 shows the full names and the generic names of the SCI I/O
pins.
The generic pin names appear in the text of this section.
Table 17-1. Pin Name Conventions
Generic Pin Names
Full Pin Names
RxD
TxD
PTE1/SCRxD
PTE0/SCTxD
MC68HC908AS60 — Rev. 1.0
Technical Data
Serial Communications Interface (SCI)
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