mc68hc11f1cpu5 Freescale Semiconductor, Inc, mc68hc11f1cpu5 Datasheet - Page 45
mc68hc11f1cpu5
Manufacturer Part Number
mc68hc11f1cpu5
Description
8-bit Microcontroller
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC11F1CPU5.pdf
(68 pages)
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MC68HC11F1/FC0
MC68HC11FTS/D
Figure 11 illustrates the SCI baud rate timing chain. The prescaler select bits determine the highest
baud rate. The rate select bits determine additional divide-by-two stages to arrive at the receiver timing
(RT) clock rate. The baud rate clock is the result of dividing the RT clock by 16.
EXTAL
XTAL
CLOCK GENERATOR
OSCILLATOR
Figure 11 SCI Baud Rate Generator Block Diagram
AND
( 4)
E
2
2
2
2
2
2
2
X00
SCR[2:0]
0:0:0
0:0:1
0:1:0
0:1:1
1:0:0
1:0:1
1:1:0
1:1:1
3
INTERNAL BUS CLOCK (PH2)
001
16
4
X10
SCI Receive Baud Rate (16x)
SCI Transmit Baud Rate (1x)
13
X11
9
101
MOTOROLA
45
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