mc68hc705c4acfn Freescale Semiconductor, Inc, mc68hc705c4acfn Datasheet - Page 116

• Manufacturer Part Number: mc68hc705c4acfn
• Description: M68hc05 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Serial Communications Interface (SCI)
10.3 Features
10.4 SCI Data Format
Technical Data
116
START
START
BIT
BIT
BIT 0
BIT 0
Features of the SCI module include:
The SCI uses the standard non-return-to-zero mark/space data format
illustrated in
BIT 1
BIT 1
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•
•
•
•
•
•
•
•
Standard mark/space non-return-to-zero format
Full-duplex operation
32 programmable baud rates
Programmable 8-bit or 9-bit character length
Separately enabled transmitter and receiver
Two receiver wakeup methods:
– Idle line wakeup
– Address mark wakeup
Interrupt-driven operation capability with five interrupt flags:
– Transmitter data register empty
– Transmission complete
– Receiver data register full
– Receiver overrun
– Idle receiver input
Receiver framing error detection
1/16 bit-time noise detection
BIT 2
BIT 2
Serial Communications Interface (SCI)
Figure 10-1. SCI Data Format
Figure
BIT 3
BIT 3
(BIT M IN SCCR1 CLEAR)
(BIT M IN SCCR1 SET)
8-BIT DATA FORMAT
9-BIT DATA FORMAT
BIT 4
BIT 4
10-1.
BIT 5
BIT 5
MC68HC705C4A • MC68HSC705C4A — Rev. 3.0
BIT 6
BIT 6
BIT 7
BIT 7
STOP
BIT 8
BIT
START
NEXT
STOP
BIT
BIT
START
NEXT
BIT
MOTOROLA