mc68hc908gp20 Freescale Semiconductor, Inc, mc68hc908gp20 Datasheet - Page 275

• Manufacturer Part Number: mc68hc908gp20
• Description: M68hc08 Family Of 8-bit Microcontroller Units Mcus
• Manufacturer: Freescale Semiconductor, Inc

18.9.3 SCI Control Register 3
MC68HC908GP20
Freescale Semiconductor
NOTE:
—
Rev 2.1
Address:
SBK — Send Break Bit
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.
SCI control register 3:
Reset:
Read:
Write:
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
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
$0015
Bit 7
R8
U
Figure 18-11. SCI Control Register 3 (SCC3)
= Unimplemented
T8
U
6
DMARE
5
0
DMATE
4
0
U = Unaffected
ORIE
3
0
NEIE
2
0
Advance Information
FEIE
1
0
PEIE
Bit 0
0
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