PT — Parity Type
0 = Even parity
1 = Odd parity
PE — Parity Enable
0 = SCI parity disabled
1 = SCI parity enabled
M — Mode Select
0 = 10-bit SCI frame
1 = 11-bit SCI frame
WAKE — Wakeup by Address Mark
0 = SCI receiver awakened by idle-line detection
1 = SCI receiver awakened by address mark (last bit set)
TIE — Transmit Interrupt Enable
0 = SCI TDRE interrupts inhibited
1 = SCI TDRE interrupts enabled
TCIE — Transmit Complete Interrupt Enable
0 = SCI TC interrupts inhibited
D
1 = SCI TC interrupts enabled
RIE — Receiver Interrupt Enable
0 = SCI RDRF and OR interrupts inhibited
1 = SCI RDRF and OR interrupts enabled
ILIE — Idle-Line Interrupt Enable
0 = SCI IDLE interrupts inhibited
1 = SCI IDLE interrupts enabled
TE — Transmitter Enable
0 = SCI transmitter disabled (TXD pin can be used as I/O)
1 = SCI transmitter enabled (TXD pin dedicated to SCI transmitter)
RE — Receiver Enable
0 = SCI receiver disabled (status bits inhibited)
1 = SCI receiver enabled
RWU — Receiver Wakeup
0 = Normal receiver operation (received data recognized)
1 = Wakeup mode enabled (received data ignored until awakened)
SBK — Send Break
0 = Normal operation
1 = Break frame(s) transmitted after completion of current frame
MOTOROLA
D-28
REGISTER SUMMARY
MC68331
USER’S MANUAL
MOTOROLA [ MOTOROLA ]
