mc68hc08ln56 Freescale Semiconductor, Inc, mc68hc08ln56 Datasheet - Page 139

• Manufacturer Part Number: mc68hc08ln56
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

12.4.1 Data Format
The SCI uses the standard non-return-to-zero mark/space data format illustrated in
12.4.2 Transmitter
Figure 12-4
Freescale Semiconductor
shows the structure of the SCI transmitter.
SCP1
SCP0
SCR1
SCR2
SCR0
START
START
÷ 4
BIT
BIT
MC68HC08LN56 • MC68HC708LN56 General Release Specification, Rev. 2.1
BIT 0
BIT 0
SCALER
PRE-
BIT 1
BIT 1
DIVIDER
BAUD
PEN
PTY
BIT 2
BIT 2
TXINV
Figure 12-4. SCI Transmitter
Figure 12-3. SCI Data Formats
÷ 16
BIT 3
BIT 3
GENERATION
(BIT M IN SCC1 CLEAR)
PARITY
DMATE
8-BIT DATA FORMAT
9-BIT DATA FORMAT
(BIT M IN SCC1 SET)
DMATE
SCTIE
SCTE
DMATE
SCTE
SCTIE
TC
TCIE
T8
M
BIT 4
BIT 4
H
BIT 5
BIT 5
8
SCTIE
7
SCTE
TCIE
TC
SCI DATA REGISTER
6
BIT 6
BIT 6
SHIFT REGISTER
INTERNAL BUS
TRANSMIT
5
11-BIT
PARITY
CONTROL LOGIC
4
BIT 7
BIT 7
TRANSMITTER
BIT
3
2
PARITY
STOP
BIT 8
BIT
BIT
1
LOOPS
ENSCI
SBK
TE
0
START
STOP
NEXT
BIT
BIT
L
START
NEXT
BIT
Functional Description
Figure
PTE5/Tx
12-3.
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