MC68HC812A4 Datasheet, PDF (253/342 Pages) Motorola, Inc – 16-bit device composed of standard on-chip peripheral modules connected by an intermodule bus. Modules include

Serial Communications Interface Module (SCI)
Register Descriptions and Reset Initialization
TIE — Transmitter Interrupt Enable Bit
TIE enables the transmit data register empty flag, TDRE, to generate
interrupt requests.
1 = TDRE interrupt requests enabled
0 = TDRE interrupt requests disabled
TCIE — Transmission Complete Interrupt Enable Bit
TCIE enables the transmission complete flag, TC, to generate
interrupt requests.
1 = TC interrupt requests enabled
0 = TC interrupt requests disabled
RIE — Receiver Interrupt Enable Bit
RIE enables the receive data register full flag, RDRF, and the overrun
flag, OR, to generate interrupt requests.
1 = RDRF and OR interrupt requests enabled
0 = RDRF and OR interrupt requests disabled
ILIE — Idle Line Interrupt Enable Bit
ILIE enables the idle line flag, IDLE, to generate interrupt requests.
1 = IDLE interrupt requests enabled
0 = IDLE interrupt requests disabled
TE — Transmitter Enable Bit
TE enables the SCI transmitter and configures the TXD pin as the SCI
transmitter output. The TE bit can be used to queue an idle preamble.
1 = Transmitter enabled
0 = Transmitter disabled
RE — Receiver Enable Bit
RE enables the SCI receiver.
1 = Receiver enabled
0 = Receiver disabled
RWU — Receiver Wakeup Bit
1 = Standby state
0 = Normal operation
Advance Information
MOTOROLA
Serial Communications Interface Module (SCI)
MC68HC812A4 — Rev. 3.0
253