MC68HC912DG128 Datasheet, PDF (251/452 Pages) Motorola, Inc – Microcontrollers

Freescale Semiconductor, Inc.
Multiple Serial Interface
Serial Communication Interface (SCI)
MCLK
BAUD RATE
CLOCK
SCI TRANSMITTER
MSB
LSB
DIVIDER
Rx Baud Rate
PARITY
GENERATOR
10-11 Bit SHIFT REG
TxD BUFFER/SCxDRL
SCxBD/SELECT
Tx Baud Rate
TxD
SCxCR1/SCI CTL 1
TxMTR CONTROL
DATA BUS
SCxCR2/SCI CTL 2
SCxSR1/INT STATUS
RxD
INT REQUEST LOGIC
TO
INTERNAL
LOGIC
PARITY
DETECT
DATA RECOVERY
SCI RECEIVER
MSB
LSB
10-11 BIT SHIFT REG
TxD BUFFER/SCxDRL
SCxCR1/SCI CTL 1
WAKE-UP LOGIC
SCxSR1/INT STATUS
INT REQUEST LOGIC
SCxCR2/SCI CTL 2
Figure 14-2. Serial Communications Interface Block Diagram
MC68HC912DG128 — Rev 3.0
MOTOROLA
Multiple Serial Interface
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Technical Data
251