MC908GR8CDWE Datasheet, PDF (234/408 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

Freescale Semiconductor, Inc.
Serial Communications Interface (SCI)
INTERNAL BUS
SCI DATA
REGISTER
SCI DATA
REGISTER
PE1/RxD
RECEIVE
SHIFT REGISTER
TRANSMIT
SHIFT REGISTER
SCTIE
TCIE
SCRIE
ILIE
TE
RE
RWU
SBK
SCTE
TC
SCRF
IDLE
SCIBDSRC
FROM
CONFIG
WAKEUP
CONTROL
ENSCI
CGMXCLK
IT12
A
B
SL
X
÷4
SL = 0 => X = A
SL = 1 => X = B
PRE-
SCALER
TXINV
R8
T8
DMARE
DMATE
OR
NF
FE
PE
LOOPS
RECEIVE
CONTROL
FLAG
CONTROL
LOOPS
ENSCI
ORIE
NEIE
FEIE
PEIE
TRANSMIT
CONTROL
BKF
RPF
BAUD
DIVIDER
M
WAKE
ILTY
PEN
PTY
∏ ÷ 16
DATA SELECTION
CONTROL
PE2/TxD
Figure 18-1. SCI Module Block Diagram
Technical Data
234
MC68HC908GR8 — Rev 4.0
Serial Communications Interface (SCI)
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