mc68hc908ap8a Freescale Semiconductor, Inc, mc68hc908ap8a Datasheet - Page 181

• Manufacturer Part Number: mc68hc908ap8a
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

12.5 SCI Functional Description
Figure 12-5
Freescale Semiconductor
SCI_RxD
BUS CLOCK
SCI_R32XCLK
SCI_R16XCLK
CGMXCLK
SCTIE
SCRIE
RWU
TCIE
SBK
ILIE
SL = 0 => X = A
SL = 1 => X = B
TE
RE
shows the structure of the SCI.
SHIFT REGISTER
A
B
CKS
SL
REGISTER
SCI DATA
RECEIVE
X
CONTROL
WAKEUP
SCRF
SCTE
IDLE
TC
Figure 12-5. SCI Module Block Diagram
ENSCI
MC68HC908AP A-Family Data Sheet, Rev. 3
GENERATOR
BAUD RATE
÷16
CONTROL
RECEIVE
INTERNAL BUS
LOOPS
BKF
RPF
DATA SELECTION
CONTROL
OR
NF
FE
PE
FLAG
CONTROL
WAKE
ILTY
PEN
LOOPS
PTY
ENSCI
M
TRANSMIT
CONTROL
SHIFT REGISTER
DMARE
DMATE
ORIE
NEIE
FEIE
PEIE
SCI Functional Description
R8
T8
REGISTER
TRANSMIT
SCI DATA
SCI_TxD
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