MC9S12C128CFAE Freescale Semiconductor, MC9S12C128CFAE Datasheet - Page 405

• Manufacturer Part Number: MC9S12C128CFAE
• Description: IC MCU 16BIT 4K FLASH 48-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of MC9S12C128CFAE

• Core Processor: HCS12
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: CAN, EBI/EMI, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 31
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.35 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-LQFP
• Processor Series: S12C
• Core: HCS12
• Data Bus Width: 16 bit
• Data Ram Size: 4 KB
• Interface Type: CAN/SCI/SPI
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 31
• Number Of Timers: 8
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWHCS12
• Development Tools By Supplier: M68EVB912C32EE
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8-ch x 10-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

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
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Figure 13-18. Start Bit Search Example 5
Figure 13-19. Start Bit Search Example 6
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MC9S12C-Family / MC9S12GC-Family
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Chapter 13 Serial Communications Interface (S12SCIV2) Block Description
Rev 01.24
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START BIT
START BIT
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NO START BIT FOUND
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LSB
LSB
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