mc68hc908gr8a Freescale Semiconductor, Inc, mc68hc908gr8a Datasheet - Page 134

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

Serial Communications Interface (SCI) Module
134
BUS CLOCK
PTE1/RxD
CGMXCLK
SL = 0 => SCICLK = CGMXCLK
SL = 1 => SCICLK = BUS CLOCK
SCTIE
SCRIE
SCIBDSRC
RWU
TCIE
SBK
CONFIG2
ILIE
TE
RE
FROM
A
B
SL
SHIFT REGISTER
X
REGISTER
SCI DATA
RECEIVE
÷ 4
CONTROL
WAKEUP
MC68HC908GR8A • MC68HC908GR4A Data Sheet, Rev. 5
SCRF
SCTE
IDLE
SCALER
TC
ENSCI
Figure 13-3. SCI Module Block Diagram
PRE-
DIVIDER
BAUD
÷16
CONTROL
RECEIVE
INTERNAL BUS
LOOPS
BKF
RPF
DATA SELECTION
CONTROL
OR
NF
FE
PE
FLAG
CONTROL
WAKE
ILTY
PEN
LOOPS
PTY
ENSCI
M
TRANSMIT
CONTROL
SHIFT REGISTER
TXINV
ORIE
NEIE
FEIE
PEIE
R8
T8
REGISTER
TRANSMIT
SCI DATA
Freescale Semiconductor
PTE0/TxD