mc68hc708mp16 Freescale Semiconductor, Inc, mc68hc708mp16 Datasheet - Page 301

• Manufacturer Part Number: mc68hc708mp16
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

14.8.1 SCI Control Register 1
MC68HC708MP16
Freescale Semiconductor
—
Rev. 3.1
Address:
SCI control register 1:
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
PTE6/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 wake-up method
Controls idle character detection
Enables parity function
Controls parity type
LOOPS
$0038
Bit 7
0
Figure 14-7. SCI Control Register 1 (SCC1)
ENSCI
6
0
TXINV
5
0
Serial Communications Interface Module (SCI)
M
4
0
WAKE
3
0
ILTY
2
0
PEN
1
0
Technical Data
Bit 0
PTY
0
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