mc68hc908mr32 Freescale Semiconductor, Inc, mc68hc908mr32 Datasheet - Page 164
mc68hc908mr32
Manufacturer Part Number
mc68hc908mr32
Description
M68hc08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC908MR32.pdf
(282 pages)
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Serial Communications Interface Module (SCI)
13.3.3.1 Character Length
The receiver can accommodate either 8-bit or 9-bit data. The state of the M bit in SCI control register 1
(SCC1) determines character length. When receiving 9-bit data, bit R8 in SCI control register 2 (SCC2)
is the ninth bit (bit 8). When receiving 8-bit data, bit R8 is a copy of the eighth bit (bit 7).
164
f
OP
SCP1
SCP0
÷ 4
SCALER
WAKE
PTF4/RxD
ILTY
BKF
RPF
PEN
PTY
PRE-
M
MC68HC908MR32 • MC68HC908MR16 Data Sheet, Rev. 6.1
Figure 13-6. SCI Receiver Block Diagram
DIVIDER
BAUD
ALL 0s
CHECKING
WAKEUP
IDLE
ILIE
SCRF
OR
ORIE
NF
NEIE
FE
FEIE
PE
PEIE
SCRIE
PARITY
LOGIC
RECOVERY
SCR2
SCR1
SCR0
DATA
÷ 16
INTERNAL BUS
H
8
7
RECEIVE SHIFT REGISTER
SCI DATA REGISTER
6
5
11-BIT
SCRIE
SCRF
ORIE
IDLE
NEIE
FEIE
PEIE
ILIE
4
OR
NF
PE
R8
FE
3
2
1
Freescale Semiconductor
0
L
RWU
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