MC68HC711K4CFN4 Datasheet, PDF (50/80 Pages) Motorola, Inc – 8-Bit Microcontroller

TRANSMITTER
BAUD RATE
CLOCK
SCDR Tx BUFFER
(WRITE ONLY)
10 (11) - BIT Tx SHIFT REGISTER
H (8) 7 6 5 4 3 2 1 0 L
DDD1
PIN BUFFER
PD1
AND CONTROL
TxD
8
SCCR1 SCI CONTROL 1
TRANSMITTER
CONTROL LOGIC
FORCE PIN
DIRECTION (OUT)
8
SCSR INTERRUPT STATUS
8
TDRE
TIE
TC
TCIE
SCCR2 SCI CONTROL 2
SCI Rx
REQUESTS
SCI INTERRUPT
REQUEST
Figure 10 SCI Transmitter Block Diagram
INTERNAL
DATA BUS
MOTOROLA
50
M68HC11 K Series
MC68HC11KTS/D