MC9S12C128VFU Freescale Semiconductor, MC9S12C128VFU Datasheet - Page 405
MC9S12C128VFU
Manufacturer Part Number
MC9S12C128VFU
Description
Manufacturer
Freescale Semiconductor
Datasheet
1.MC9S12C128VFU.pdf
(690 pages)
Specifications of MC9S12C128VFU
Cpu Family
HCS12
Device Core Size
16b
Frequency (max)
25MHz
Interface Type
CAN/SCI/SPI
Program Memory Type
Flash
Program Memory Size
128KB
Total Internal Ram Size
4KB
# I/os (max)
60
Number Of Timers - General Purpose
8
Operating Supply Voltage (typ)
2.5/5V
Operating Supply Voltage (max)
2.75/5.5V
Operating Supply Voltage (min)
2.35/2.97V
On-chip Adc
8-chx10-bit
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 105C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
80
Package Type
PQFP
Lead Free Status / Rohs Status
Not Compliant
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Figure 13-18
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.
In
noise flag but does not reset the RT clock. In start bits only, the RT8, RT9, and RT10 data samples are
ignored.
Freescale Semiconductor
Figure
RT CLOCK COUNT
RT CLOCK COUNT
RESET RT CLOCK
RESET RT CLOCK
Rx Input Signal
Rx Input Signal
RT CLOCK
RT CLOCK
SAMPLES
SAMPLES
13-19, a noise burst makes the majority of data samples RT8, RT9, and RT10 high. This sets the
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
1
1
1
Figure 13-18. Start Bit Search Example 5
Figure 13-19. Start Bit Search Example 6
1
1
1
1
MC9S12C-Family / MC9S12GC-Family
1
1
1
1
0
0
Chapter 13 Serial Communications Interface (S12SCIV2) Block Description
Rev 01.24
0
0
1
0
START BIT
START BIT
1
0
0
1
NO START BIT FOUND
0
0
0
1
0
0
0
0
0
LSB
LSB
405
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