MC68HC908KX2 MOTOROLA [Motorola, Inc], MC68HC908KX2 Datasheet - Page 198

• Manufacturer Part Number: MC68HC908KX2
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Serial Communications Interface Module (SCI)
14.8.1 SCI Control Register 1
Technical Data
198
Address:
SCI control register 1 (SCC1):
LOOPS — Loop Mode Select Bit
ENSCI — Enable SCI Bit
Reset:
Read:
Write:
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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.
Serial Communications Interface Module (SCI)
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
Figure 14-9. SCI Control Register 1 (SCC1)
MC68HC908KX8 • MC68HC908KX2 • MC68HC08KX8 — Rev. 1.0
ENSCI
6
0
TXINV
5
0
M
4
0
WAKE
3
0
ILTY
2
0
PEN
1
0
MOTOROLA
Bit 0
PTY
0