MC68HC908GP20 Datasheet, PDF (275/406 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

SBK — Send Break Bit
Setting and then clearing this read/write bit transmits a break character
followed by a logic 1. The logic 1 after the break character guarantees
recognition of a valid start bit. If SBK remains set, the transmitter
continuously transmits break characters with no logic 1s between
them. Reset clears the SBK bit.
1 = Transmit break characters
0 = No break characters being transmitted
NOTE:
Do not toggle the SBK bit immediately after setting the SCTE bit.
Toggling SBK before the preamble begins causes the SCI to send a
break character instead of a preamble.
18.9.3 SCI Control Register 3
SCI control register 3:
• Stores the ninth SCI data bit received and the ninth SCI data bit to
be transmitted
• Enables these interrupts:
– Receiver overrun interrupts
– Noise error interrupts
– Framing error interrupts
• Parity error interrupts
Address: $0015
Bit 7
6
5
4
3
2
1
Bit 0
Read: R8
Write:
T8
DMARE DMATE ORIE
NEIE
FEIE
PEIE
Reset: U
U
0
0
0
0
0
0
= Unimplemented
U = Unaffected
Figure 18-11. SCI Control Register 3 (SCC3)
MC68HC908GP20 — Rev 2.1
Freescale Semiconductor
Advance Information
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