S9S12G240F0CLFR Freescale Semiconductor, S9S12G240F0CLFR Datasheet - Page 693
S9S12G240F0CLFR
Manufacturer Part Number
S9S12G240F0CLFR
Description
16-bit Microcontrollers - MCU 16BIT 240KB FLASH
Manufacturer
Freescale Semiconductor
Datasheet
1.S9S12G96F0CLL.pdf
(1292 pages)
Specifications of S9S12G240F0CLFR
Rohs
yes
Core
S12
Processor Series
MC9S12G
Data Bus Width
16 bit
Maximum Clock Frequency
25 MHz
Program Memory Size
240 KB
Data Ram Size
4 KB
On-chip Adc
Yes
Operating Supply Voltage
3.13 V to 5.5 V
Operating Temperature Range
- 40 C to + 125 C
Package / Case
LQFP-48
Mounting Style
SMD/SMT
Available stocks
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Manufacturer
Quantity
Price
Company:
Part Number:
S9S12G240F0CLFR
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Figure 20-25
synchronization with the start bit time, it does set the noise flag.
Figure 20-26
after the reset is low but is not preceded by three high samples that would qualify as a falling edge.
Depending on the timing of the start bit search and on the data, the frame may be missed entirely or it may
set the framing error flag.
Freescale Semiconductor
RT Clock Count
Reset RT Clock
RT Clock Count
Reset RT Clock
RT Clock
RT Clock
Samples
Samples
RXD
RXD
shows the effect of noise early in the start bit time. Although this noise does not affect proper
shows a burst of noise near the beginning of the start bit that resets the RT clock. The sample
1
1
1
1
1
1
1
0
1
MC9S12G Family Reference Manual, Rev.1.23
Figure 20-24. Start Bit Search Example 3
Figure 20-25. Start Bit Search Example 4
1
0
1
1
1
1
Perceived Start Bit
0
0
0
1
0
0
Perceived and Actual Start Bit
0
Actual Start Bit
Serial Communication Interface (S12SCIV5)
LSB
LSB
695
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