MC68HC908GP32 Datasheet, PDF (251/410 Pages) Motorola, Inc – M68HC08 Family of 8-bit microcontroller units (MCUs)

Freescale Semiconductor, Inc.
Serial Communications Interface Module (SCI)
Functional Description
INTERNAL BUS
SCIBDSRC
FROM
CONFIG2
CGMXCLK
BUS CLOCK
A
B
SL
X
SL = 0 => X = A
SL = 1 => X = B
SCP1
SCP0
÷4
PRE-
BAUD
SCALER DIVIDER
SCR1
SCR2
SCR0
÷ 16
PTE1/RxD
DATA
RECOVERY
ALL 0s
BKF
RPF
SCI DATA REGISTER
11-BIT
RECEIVE SHIFT REGISTER
H8 7 6 5 4 3 2 1 0 L
M
WAKE
ILTY
PEN
PTY
WAKEUP
LOGIC
PARITY
CHECKING
IDLE
ILIE
DMARE
SCRF
SCRIE
DMARE
SCRF
SCRIE
DMARE
OR
ORIE
NF
NEIE
FE
FEIE
PE
PEIE
SCRF
IDLE
R8
ILIE
SCRIE
DMARE
OR
ORIE
NF
NEIE
FE
FEIE
PE
PEIE
RWU
Figure 18-5. SCI Receiver Block Diagram
MC68HC908GP32•MC68HC08GP32 — Rev. 6
MOTOROLA
Serial Communications Interface Module (SCI)
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Technical Data
249