MC68HC08AB16A Datasheet, PDF (235/380 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
Serial Communications Interface Module (SCI)
Functional Description
INTERNAL BUS
PTE1/RxD
SCI DATA
REGISTER
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
WAKEUP
CONTROL
R
R
OR
NF
FE
PE
LOOPS
RECEIVE
CONTROL
FLAG
CONTROL
LOOPS
ENSCI
ORIE
NEIE
FEIE
PEIE
TRANSMIT
CONTROL
BKF
ENSCI
RPF
÷4
PRE-
SCALER
BAUD
DIVIDER
M
WAKE
ILTY
PEN
PTY
÷ 16
DATA SELECTION
CONTROL
PTE0/TxD
Figure 15-1. SCI Module Block Diagram
MC68HC08AB16A — Rev. 2.0
MOTOROLA
Serial Communications Interface Module (SCI)
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Technical Data
235