mc68hc708mp16 Freescale Semiconductor, Inc, mc68hc708mp16 Datasheet - Page 288

• Manufacturer Part Number: mc68hc708mp16
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Serial Communications Interface Module (SCI)
14.4.1 Data Format
14.4.2 Transmitter
14.4.2.1 Character Length
Technical Data
288
START
START
BIT
BIT
BIT 0
BIT 0
BIT 1
BIT 1
The SCI uses the standard non-return-to-zero mark/space data format
illustrated in
Figure 14-4
The transmitter can accommodate either 8-bit or 9-bit data. The state of
the M bit in SCI control register 1 (SCC1) determines character length.
When transmitting 9-bit data, bit T8 in SCI control register 3 (SCC3) is
the ninth bit (bit 8).
Serial Communications Interface Module (SCI)
BIT 2
BIT 2
Figure 14-3. SCI Data Formats
BIT 3
BIT 3
Figure
shows the structure of the SCI transmitter.
(BIT M IN SCC1 CLEAR)
8-BIT DATA FORMAT
9-BIT DATA FORMAT
(BIT M IN SCC1 SET)
BIT 4
BIT 4
14-3.
BIT 5
BIT 5
BIT 6
BIT 6
POSSIBLE
PARITY
BIT 7
BIT 7
BIT
POSSIBLE
PARITY
STOP
BIT 8
BIT
BIT
MC68HC708MP16
START
NEXT
STOP
BIT
BIT
Freescale Semiconductor
START
NEXT
BIT
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Rev. 3.1