Sci Module Block Diagram - Motorola MC68HC908GP32 Technical Data Manual

SCI DATA
REGISTER
RECEIVE
PTE1/RxD
SHIFT REGISTER
SCTIE
TCIE
SCRIE
ILIE
TE
RE
RWU
SBK
CONTROL
SCIBDSRC
FROM
CONFIG2
SL
A
CGMXCLK
÷ 4
X
B
BUS CLOCK
SL = 0 => X = A
SL = 1 => X = B
MC68HC908GP32 MC68HC08GP32
•
MOTOROLA
Freescale Semiconductor, Inc.
SCTE
TC
SCRF
IDLE
WAKEUP RECEIVE
CONTROL
ENSCI
PRE- BAUD
SCALER DIVIDER
÷ 16
Figure 18-1. SCI Module Block Diagram
Rev. 6
—
Serial Communications Interface Module (SCI)
For More Information On This Product,
Go to: www.freescale.com
Serial Communications Interface Module (SCI)
INTERNAL BUS
OR
NF
FE
PE
LOOPS
LOOPS ENSCI
FLAG
CONTROL
M
BKF
WAKE
RPF
ILTY
PEN
PTY
DATA SELECTION
CONTROL
Functional Description
SCI DATA
REGISTER
TRANSMIT
PTE0/TxD
SHIFT REGISTER
TXINV
R8
T8
DMARE
DMATE
ORIE
NEIE
FEIE
PEIE
TRANSMIT
CONTROL
Technical Data
241