MK30DN512ZVLK10 Freescale Semiconductor, MK30DN512ZVLK10 Datasheet - Page 1210

• Manufacturer Part Number: MK30DN512ZVLK10
• Description: ARM Microcontrollers - MCU KINETIS 512K SLCD
• Manufacturer: Freescale Semiconductor

Specifications of MK30DN512ZVLK10

• Core: ARM Cortex M4
• Processor Series: K30
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 50 MHz
• Program Memory Size: 512 KB
• Data Ram Size: 128 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 1.71 V to 3.6 V
• Operating Temperature Range: - 40 C to + 105 C
• Package / Case: LQFP-80
• Mounting Style: SMD/SMT

Functional description
The following figure shows the effect of noise early in the start bit time. In this example
C7816[ISO_7816E] = 0. Although this noise does not affect proper synchronization with
the start bit time, it does set the noise flag.
The following figure shows a burst of noise near the beginning of the start bit that resets
the RT clock. In this example C7816[ISO_7816E] = 0. The sample 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.
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RT CLOCK COUNT
RT CLOCK COUNT
RESET RT CLOCK
RESET RT CLOCK
Rx pin input
Rx pin input
RT CLOCK
RT CLOCK
SAMPLES
SAMPLES
Figure 44-162. Start bit search example 3 (C7816[ISO_7816E] = 0)
Figure 44-163. Start bit search example 4 (C7816[ISO_7816E] = 0)
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K30 Sub-Family Reference Manual, Rev. 6, Nov 2011
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PERCEIVED START BIT
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PERCEIVED AND ACTUAL START BIT
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ACTUAL START BIT
Freescale Semiconductor, Inc.
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