MC68HC08AZ16 Datasheet, PDF (174/527 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Serial Communications Interface Module (SCI)
Functional description
INTERNAL BUS
SCI DATA
REGISTER
PTE1/RxD
RECEIVE
SHIFT REGISTER
SCI DATA
REGISTER
TRANSMIT
SHIFT REGISTER
SCTIE
TCIE
SCRIE
ILIE
TE
RE
RWU
SBK
CGMXCLK
TXINV
R8
T8
SCTE
TC
SCRF
IDLE
WAKE-UP
CONTROL
DMARE
DMATE
OR
NF
FE
PE
RECEIVE
CONTROL
LOOPS
FLAG
CONTROL
LOOPS
ENSCI
ORIE
NEIE
FEIE
PEIE
TRANSMIT
CONTROL
ENSCI
÷4
PRE- BAUD RATE
SCALER GENERATOR
BKF
RPF
M
WAKE
ILTY
PEN
PTY
÷16
DATA SELECTION
CONTROL
PTE2/TxD
Figure 1. SCI module block diagram
5-sci
MOTOROLA
Serial Communications Interface Module (SCI)
MC68HC08AZ32
173