MC908JL16CFAE FREESCALE [Freescale Semiconductor, Inc], MC908JL16CFAE Datasheet - Page 88

• Manufacturer Part Number: MC908JL16CFAE
• Description: Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Serial Communications Interface (SCI)
7.4.2 Transmitter
Figure 7-4
The baud rate clock source for the SCI is the bus clock.
88
BUS CLOCK
shows the structure of the SCI transmitter.
START
START
BIT
BIT
SCP1
SCP0
SCR1
SCR2
SCR0
÷ 4
BIT 0
BIT 0
SCALER
BIT 1
BIT 1
PRE-
BIT 2
BIT 2
DIVIDER
BAUD
PEN
PTY
MC68HC908JL16 Data Sheet, Rev. 1.1
Figure 7-3. SCI Data Formats
Figure 7-4. SCI Transmitter
TXINV
BIT 3
BIT 3
BIT M IN SCC1 CLEAR
8-BIT DATA FORMAT
9-BIT DATA FORMAT
BIT M IN SCC1 SET
÷ 16
GENERATION
BIT 4
BIT 4
PARITY
DMATE
DMATE
SCTIE
SCTE
DMATE
SCTE
SCTIE
TC
TCIE
T8
M
BIT 5
BIT 5
H
8
BIT 6
BIT 6
SCTIE
7
SCTE
TCIE
TC
SCI DATA REGISTER
6
SHIFT REGISTER
PARITY
INTERNAL BUS
BIT 7
BIT 7
BIT
TRANSMIT
5
11-BIT
CONTROL LOGIC
4
TRANSMITTER
PARITY
STOP
BIT 8
BIT
3
BIT
2
START
STOP
NEXT
1
BIT
BIT
LOOPS
ENSCI
SBK
TE
0
START
NEXT
L
BIT
Freescale Semiconductor
TxD