mc68hc711k4 Freescale Semiconductor, Inc, mc68hc711k4 Datasheet - Page 163

• Manufacturer Part Number: mc68hc711k4
• Description: Hcmos Microcontroller Unit
• Manufacturer: Freescale Semiconductor, Inc

M68HC11K Family
MOTOROLA
TDRE — Transmit Data Register Empty Flag
TC — Transmit Complete Flag
RDRF — Receive Data Register Full Flag
IDLE — Idle Line Detected Flag
OR — Overrun Error Flag
NF — Noise Error Flag
TDRE is set when the SCDR transfers its contents to the transmission
shift register.
TC is set when the final character in a message has been sent (no
data, preamble, or break transmissions pending).
RDRF is set when the shift register has received a complete character
and transferred it to the receive data register.
IDLE is set when a frame of all 1s is received after a message.
OR is set if a new character is received before a previously received
character is read from SCDR.
NF is set after the last bit in a frame is received if the samples in the
receiver’s data recovery circuit are not unanimous for any of the bits,
including start and stop bits.
Freescale Semiconductor, Inc.
For More Information On This Product,
0 = SCDR is full.
1 = SCDR is empty.
0 = Transmitter busy
1 = Transmitter idle
0 = RDR not full
1 = RDR full
0 = RxD line is active.
1 = RxD line is idle.
0 = No overrun
1 = Overrun detected
0 = No noise detected
1 = Noise detected
Serial Communications Interface (SCI)
Go to: www.freescale.com
Serial Communications Interface (SCI)
Technical Data
SCI Registers
163