MK30DN512ZVLK10 Freescale Semiconductor, MK30DN512ZVLK10 Datasheet - Page 979

• 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

40.3 Functional description
40.3.1 Power, clocking and reset
The RTC is an always powered block that is powered by the battery power supply
(VBAT). The battery power supply ensures that the RTC registers retain their state during
chip power-down and that the RTC time counter remains operational.
The time counter within the RTC is clocked by a 32.768 kHz clock and can supply this
clock to other peripherals. The 32.768 kHz clock can only be sourced from an external
crystal using the oscillator that is part of the RTC module.
Freescale Semiconductor, Inc.
TCRR
TARR
TPRR
TSRR
CRR
Field
4
3
2
1
0
Control Register Read
Once cleared, this bit is only set by system reset. It is not affected by VBAT POR or software reset.
0
1
Time Compensation Register Read
Once cleared, this bit is only set by system reset. It is not affected by VBAT POR or software reset
0
1
Time Alarm Register Read
Once cleared, this bit is only set by system reset. It is not affected by VBAT POR or software reset.
0
1
Time Prescaler Register Read
Once cleared, this bit is only set by system reset. It is not affected by VBAT POR or software reset.
0
1
Time Seconds Register Read
Once cleared, this bit is only set by system reset. It is not affected by VBAT POR or software reset.
0
1
Reads to the control register are ignored.
Reads to the control register complete as normal.
Reads to the time compensation register are ignored.
Reads to the time compensation register complete as normal.
Reads to the time alarm register are ignored.
Reads to the time alarm register complete as normal.
Reads to the time prescaler register are ignored.
Reads to the time prescaler register complete as normal.
Reads to the time seconds register are ignored.
Reads to the time seconds register complete as normal.
K30 Sub-Family Reference Manual, Rev. 6, Nov 2011
RTC_RAR field descriptions (continued)
Description
Chapter 40 Real Time Clock (RTC)
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