MC68HC908KX8 Datasheet, PDF (181/310 Pages) Motorola, Inc – Microcontrollers

Serial Communications Interface Module (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
14.4 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 14-1 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 14-1. Pin Name Conventions
Generic Pin Names
Full Pin Names
RxD
PTB4/RxD
TxD
PTB5/TxD
MC68HC908KX8 • MC68HC908KX2 • MC68HC08KX8 — Rev. 1.0
MOTOROLA
Serial Communications Interface Module (SCI)
Technical Data
181