MK30DN512ZVLK10 Freescale Semiconductor, MK30DN512ZVLK10 Datasheet - Page 927

• 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

37.4 Functional Description
This section provides the functional description of the module.
37.4.1 General
This section gives detailed information on the internal operation of the module. Each
timer can be used to generate trigger pulses as well as to generate interrupts. Each
interrupt is available on a separate interrupt line.
37.4.1.1 Timers
The timers generate triggers at periodic intervals, when enabled. They load their start
values, as specified in their LDVAL registers, then count down until they reach 0. Then
they load their respective start value again. Each time a timer reaches 0, it will generate a
trigger pulse and set the interrupt flag.
All interrupts can be enabled or masked (by setting the TIE bits in the TCTRL registers).
A new interrupt can be generated only after the previous one is cleared.
If desired, the current counter value of the timer can be read via the CVAL registers.
The counter period can be restarted, by first disabling, then enabling the timer with the
TEN bit (see the following figure).
Freescale Semiconductor, Inc.
Reserved
31–1
Field
TIF
0
This read-only field is reserved and always has the value zero.
Timer Interrupt Flag.
TIF is set to 1 at the end of the timer period. This flag can be cleared only by writing it with 1. Writing 0
has no effect. If enabled (TIE = 1), TIF causes an interrupt request.
0
1
Time-out has not yet occurred.
Time-out has occurred.
K30 Sub-Family Reference Manual, Rev. 6, Nov 2011
PIT_TFLGn field descriptions
Description
Chapter 37 Periodic Interrupt Timer (PIT)
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