s908ab32ag0cfue Freescale Semiconductor, Inc, s908ab32ag0cfue Datasheet - Page 262
s908ab32ag0cfue
Manufacturer Part Number
s908ab32ag0cfue
Description
M68hc08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.S908AB32AG0CFUE.pdf
(392 pages)
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Serial Communications Interface
Technical Data
262
NOTE:
Address:
LOOPS — Loop Mode Select Bit
ENSCI — Enable SCI Bit
TXINV — Transmit Inversion Bit
Setting the TXINV bit inverts all transmitted values, including idle, break,
start, and stop bits.
Reset:
Read:
Write:
This read/write bit enables loop mode operation. In loop mode the
PTE1/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.
This read/write bit reverses the polarity of transmitted data. Reset
clears the TXINV bit.
Serial Communications Interface Module (SCI)
1 = Loop mode enabled
0 = Normal operation enabled
1 = SCI enabled
0 = SCI disabled
1 = Transmitter output inverted
0 = Transmitter output not inverted
LOOPS
$0013
Bit 7
0
Figure 15-9. SCI Control Register 1 (SCC1)
ENSCI
6
0
TXINV
5
0
M
4
0
WAKE
3
0
MC68HC908AB32
ILTY
Freescale Semiconductor
2
0
PEN
1
0
—
Rev. 1.1
Bit 0
PTY
0
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