MC68HC08AZ32A Datasheet, PDF (174/312 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Serial Communications Interface (SCI)
INTERNAL BUS
SCI DATA
REGISTER
SCI DATA
REGISTER
RxD
RECEIVE
SHIFT REGISTER
TRANSMIT
SHIFT REGISTER
TxD
SCTIE
TCIE
SCRIE
ILIE
TE
RE
RWU
SBK
CGMXCLK
TXINV
R8
T8
SCTE
TC
SCRF
IDLE
WAKEUP
CONTROL
OR
NF
FE
PE
LOOPS
LOOPS
ENSCI
ORIE
NEIE
FEIE
PEIE
RECEIVE
CONTROL
FLAG
CONTROL
TRANSMIT
CONTROL
BKF
ENSCI
RPF
÷4
PRE- BAUD RATE
SCALER GENERATOR
M
WAKE
ILTY
PEN
PTY
÷ 16
DATA SELECTION
CONTROL
Figure 14-3. SCI Module Block Diagram
MC68HC08AZ32A Data Sheet, Rev. 2
174
Freescale Semiconductor