MC68HC708XL36 FREESCALE [Freescale Semiconductor, Inc], MC68HC708XL36 Datasheet - Page 270

• Manufacturer Part Number: MC68HC708XL36
• Description: HCMOS Microcontroller Unit
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

SCI
SCI Control
Register 3
MC68HC708XL36
270
NOTE:
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.
•
•
•
•
Freescale Semiconductor, Inc.
For More Information On This Product,
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 SCI receiver full (SCRF) DMA service requests.
Enables SCI transmitter empty (SCTE) DMA service requests.
Enables the following interrupts:
– Receiver overrun interrupts
– Noise error interrupts
– Framing error interrupts
– Parity error interrupts
$0015
Bit 7
R8
U
Go to: www.freescale.com
Figure 13. SCI Control Register 3 (SCC3)
= Unimplemented
T8
U
6
SCI
DMARE
5
0
U = Unaffected
DMATE
4
0
ORIE
3
0
NEIE
2
0
FEIE
1
0
MOTOROLA
PEIE
Bit 0
36-sci_d
0