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MC68HC11KW1 Datasheet, PDF (137/238 Pages) Motorola, Inc – High-density complementary metal oxide semiconductor HCMOS) microcontroller unit | |||
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7.6.3 SCCR2 â SCI control register 2
SCI control 2 (SCCR2)
Address bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
State
on reset
$0073 TIE TCIE RIE ILIE TE RE RWU SBK 0000 0000
The SCCR2 register provides the control bits that enable or disable individual SCI functions.
TIE â Transmit interrupt enable
1 (set) â SCI interrupt requested when TDRE status ï¬ag is set.
0 (clear) â TDRE interrupts disabled.
TCIE â Transmit complete interrupt enable
1 (set) â SCI interrupt requested when TC status ï¬ag is set.
0 (clear) â TC interrupts disabled.
RIE â Receiver interrupt enable
1 (set) â SCI interrupt requested when RDRF ï¬ag or the OR status ï¬ag is set.
7
0 (clear) â RDRF and OR interrupts disabled.
ILIE â Idle line interrupt enable
1 (set) â SCI interrupt requested when IDLE status ï¬ag is set.
0 (clear) â IDLE interrupts disabled.
TE â Transmitter enable
1 (set) â Transmitter enabled.
0 (clear) â Transmitter disabled.
RE â Receiver enable
1 (set) â Receiver enabled.
0 (clear) â Receiver disabled.
RWU â Receiver wake-up control
1 (set) â Wake-up enabled and receiver interrupts inhibited.
0 (clear) â Normal SCI receiver.
SBK â Send break
1 (set) â Break codes generated as long as SBK is set.
0 (clear) â Break generator off.
MC68HC11KW1
SERIAL COMMUNICATIONS INTERFACE
7-9
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