mc68hc912dg128 Freescale Semiconductor, Inc, mc68hc912dg128 Datasheet - Page 251

• Manufacturer Part Number: mc68hc912dg128
• Description: M68hc12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

MC68HC912DG128 — Rev 3.0
MOTOROLA
INTERNAL
LOGIC
TO
DATA BUS
Figure 14-2. Serial Communications Interface Block Diagram
SCxBD/SELECT
DIVIDER
MCLK
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DETECT
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PARITY
SCxCR1/SCI CTL 1
BAUD RATE
CLOCK
Tx Baud Rate
Rx Baud Rate
INT REQUEST LOGIC
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SCxSR1/INT STATUS
Multiple Serial Interface
SCxCR1/SCI CTL 1
DATA RECOVERY
INT REQUEST LOGIC
GENERATOR
PARITY
WAKE-UP LOGIC
MSB
MSB
TxD BUFFER/SCxDRL
TxD BUFFER/SCxDRL
SCxSR1/INT STATUS
10-11 BIT SHIFT REG
10-11 Bit SHIFT REG
SCxCR2/SCI CTL 2
SCxCR2/SCI CTL 2
SCI TRANSMITTER
TxMTR CONTROL
SCI RECEIVER
Serial Communication Interface (SCI)
LSB
LSB
Multiple Serial Interface
Technical Data
RxD
TxD
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