MC68HC708XL36 FREESCALE [Freescale Semiconductor, Inc], MC68HC708XL36 Datasheet - Page 264

• Manufacturer Part Number: MC68HC708XL36
• Description: HCMOS Microcontroller Unit
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

SCI
SCI Control
Register 1
MC68HC708XL36
264
Address:
SCI control register 1:
LOOPS — Loop Mode Select Bit
ENSCI — Enable SCI Bit
Reset:
Read:
Write:
•
•
•
•
•
•
•
•
This read/write bit enables loop mode operation. In loop mode the
RxD pin is disconnected from the SCI, and the transmitter output goes
into the receiver input. Both the transmitter and the receiver must be
enabled to use loop mode. Reset clears the LOOPS bit.
This read/write bit enables the SCI and the SCI baud rate generator.
Clearing ENSCI sets the SCTE and TC bits in SCI status register 1
and disables transmitter interrupts. Reset clears the ENSCI bit.
Freescale Semiconductor, Inc.
For More Information On This Product,
1 = Loop mode enabled
0 = Normal operation enabled
1 = SCI enabled
0 = SCI disabled
Enables loop mode operation.
Enables the SCI.
Controls output polarity.
Controls character length.
Controls SCI wakeup method.
Controls idle character detection.
Enables parity function.
Controls parity type.
LOOPS
$0013
Bit 7
0
Go to: www.freescale.com
Figure 11. SCI Control Register 1 (SCC1)
ENSCI
6
0
SCI
TXINV
5
0
M
4
0
WAKE
3
0
ILLTY
2
0
PEN
1
0
MOTOROLA
Bit 0
30-sci_d
PTY
0