MC68HC708AS48 FREESCALE [Freescale Semiconductor, Inc], MC68HC708AS48 Datasheet - Page 262

• Manufacturer Part Number: MC68HC708AS48
• Description: Advance Information
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Serial Communications Interface (SCI)
17.5 Receiver Interrupts
17.5.1 Error Interrupts
Advance Information
262
These sources can generate CPU interrupt requests from the SCI
receiver:
These receiver error flags in SCS1 can generate CPU interrupt requests:
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SCI receiver full (SCRF) — The SCRF bit in SCS1 indicates that
the receive shift register has transferred a character to the SCDR.
SCRF can generate a receiver CPU interrupt request. Setting the
SCI receive interrupt enable bit, SCRIE (SCC2), enables the
SCRF bit to generate receiver CPU interrupts.
Idle input (IDLE) — The IDLE bit in SCS1 indicates that 10 or 11
consecutive logic 1s shifted in from the PTE1/RxD pin. The idle
line interrupt enable bit, ILIE (SCC2), enables the IDLE bit to
generate CPU interrupt requests.
Receiver overrun (OR) — The OR bit indicates that the receive
shift register shifted in a new character before the previous
character was read from the SCDR. The previous character
remains in the SCDR, and the new character is lost. The overrun
interrupt enable bit, ORIE (SCC3), enables OR to generate SCI
error CPU interrupt requests.
Noise flag (NF) — The NF bit is set when the SCI detects noise on
incoming data or break characters, including start, data, and stop
bits. The noise error interrupt enable bit, NEIE (SCC3), enables
NF to generate SCI error CPU interrupt requests.
Framing error (FE) — The FE bit in SCS1 is set when a logic zero
occurs where the receiver expects a stop bit. The framing error
interrupt enable bit, FEIE (SCC3), enables FE to generate SCI
error CPU interrupt requests.
Parity error (PE) — The PE bit in SCS1 is set when the SCI
detects a parity error in incoming data. The parity error interrupt
enable bit, PEIE (SCC3), enables PE to generate SCI error CPU
interrupt requests.
Serial Communications Interface (SCI)
MC68HC708AS48
MOTOROLA
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Rev. 4.0