MC68HC08AS20 Datasheet, PDF (243/386 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

17.4.8 Transmitter Interrupts
The following conditions can generate CPU interrupt requests from the
SCI transmitter:
• SCI transmitter empty (SCTE) — The SCTE bit in SCS1 indicates
that the SCDR has transferred a character to the transmit shift
register. SCTE can generate a transmitter CPU interrupt request.
Setting the SCI transmit interrupt enable bit, SCTIE (SCC2),
enables the SCTE bit to generate transmitter CPU interrupt
requests.
• Transmission complete (TC) — The TC bit in SCS1 indicates that
the transmit shift register and the SCDR are empty and that no
break or idle character has been generated. The transmission
complete interrupt enable bit, TCIE (SCC2), enables the TC bit to
generate transmitter CPU interrupt requests.
17.4.9 Receiver
Figure 17-4 shows the structure of the SCI receiver.
MC68HC08AS20 — Rev. 4.1
Freescale Semiconductor
Advance Information
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