MC68HC912BD32 Datasheet, PDF (157/292 Pages) Freescale Semiconductor, Inc – Advance Information

Freescale Semiconductor, Inc.
Serial Interface
Serial Communication Interface (SCI)
OR — Overrun Error Flag
New byte is ready to be transferred from the receive shift register to
the receive data register and the receive data register is already full
(RDRF bit is set). Data transfer is inhibited until this bit is cleared.
0 = No overrun
1 = Overrun detected
NF — Noise Error Flag
Set during the same cycle as the RDRF bit but not set in the case of
an overrun (OR).
0 = Unanimous decision
1 = Noise on a valid start bit, any of the data bits, or on the stop bit
FE — Framing Error Flag
Set when a zero is detected where a stop bit was expected. Clear the
FE flag by reading SC0SR1 with FE set and then reading SC0DR.
0 = Stop bit detected
1 = Zero detected rather than a stop bit
PF — Parity Error Flag
Indicates if received data’s parity matches parity bit. This feature is
active only when parity is enabled. The type of parity tested for is
determined by the PT (parity type) bit in SC0CR1.
0 = Parity correct
1 = Incorrect parity detected
11-sint
Serial Interface
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MC68HC912BD32 Rev 1.0