mc68hc908gr8a Freescale Semiconductor, Inc, mc68hc908gr8a Datasheet - Page 136

• Manufacturer Part Number: mc68hc908gr8a
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Serial Communications Interface (SCI) Module
136
SL = 0 => SCICLK = CGMXCLK
SL = 1 => SCICLK = BUS CLOCK
BUS CLOCK
CGMXCLK
SCIBDSRC
CONFIG2
FROM
SL
INTERRUPT REQUEST
TRANSMITTER CPU
X
SCP1
SCP0
SCR2
SCR1
SCR0
÷ 4
SCALER
MC68HC908GR8A • MC68HC908GR4A Data Sheet, Rev. 5
PRE-
DIVIDER
BAUD
PEN
PTY
Figure 13-5. SCI Transmitter
TXINV
÷ 16
GENERATION
PARITY
SCTE
SCTIE
TC
TCIE
T8
M
H
8
SCTIE
7
SCTE
TCIE
TC
SCI DATA REGISTER
6
SHIFT REGISTER
INTERNAL BUS
TRANSMIT
5
11-BIT
CONTROL LOGIC
4
TRANSMITTER
3
2
1
LOOPS
ENSCI
SBK
TE
0
L
Freescale Semiconductor
PTE0/TxD