![NXP Semiconductors MPC5605BK Скачать руководство пользователя страница 227](http://html.mh-extra.com/html/nxp-semiconductors/mpc5605bk/mpc5605bk_reference-manual_1721852227.webp)
Chapter 13 Real Time Clock / Autonomous Periodic Interrupt (RTC/API)
MPC5606BK Microcontroller Reference Manual, Rev. 2
Freescale Semiconductor
227
Chapter 13
Real Time Clock / Autonomous Periodic Interrupt (RTC/API)
13.1
Overview
The RTC/API is a free running counter used for time keeping applications. The RTC may be configured
to generate an interrupt at a predefined interval independent of the mode of operation (run mode or low
power mode). If in a low power mode when the RTC interval is reached, the RTC first generates a wakeup,
and then asserts the interrupt request. The RTC also supports an autonomous periodic interrupt (API)
function used to generate a periodic wakeup request to exit a low power mode or an interrupt request.
13.2
Features
Features of the RTC/API include:
•
Three selectable counter clock sources
— SIRC (128 kHz)
— SXOSC (32 KHz)
— FIRC (16 MHz)
•
Optional
512 prescaler and optional
32 prescaler
•
32-bit counter
— Supports times as long as 1.5 months with 1 ms resolution
— Runs in all modes of operation
— Reset when disabled by software and by POR
•
12-bit compare value to support interrupt intervals from 1 second to longer than 1 hour, with
1 second resolution
•
RTC compare value changeable while counter is running
•
RTC status and control register are reset only by POR
•
Autonomous periodic interrupt (API)
— 10-bit compare value to support wakeup intervals of 1.0 ms to 1 second
— Compare value changeable while counter is running
•
Configurable interrupt for RTC match, API match, and RTC rollover
•
Configurable wakeup event for RTC match, API match, and RTC rollover
Содержание MPC5605BK
Страница 2: ...This page is intentionally left blank...
Страница 20: ...MPC5606BK Microcontroller Reference Manual Rev 2 20 Freescale Semiconductor...
Страница 103: ...MPC5606BK Microcontroller Reference Manual Rev 2 Freescale Semiconductor 103 Clocks and power...
Страница 104: ...MPC5606BK Microcontroller Reference Manual Rev 2 104 Freescale Semiconductor This page is intentionally left blank...
Страница 243: ...MPC5606BK Microcontroller Reference Manual Rev 2 Freescale Semiconductor 243 Core platform modules...
Страница 244: ...MPC5606BK Microcontroller Reference Manual Rev 2 244 Freescale Semiconductor This page is intentionally left blank...
Страница 395: ...MPC5606BK Microcontroller Reference Manual Rev 2 Freescale Semiconductor 395 Communication modules...
Страница 396: ...MPC5606BK Microcontroller Reference Manual Rev 2 396 Freescale Semiconductor This page is intentionally left blank...
Страница 548: ...Chapter 24 LIN Controller LINFlexD MPC5606BK Microcontroller Reference Manual Rev 2 548 Freescale Semiconductor...
Страница 645: ...MPC5606BK Microcontroller Reference Manual Rev 2 Freescale Semiconductor 643 Timers...
Страница 646: ...MPC5606BK Microcontroller Reference Manual Rev 2 644 Freescale Semiconductor This page is intentionally left blank...
Страница 715: ...MPC5606BK Microcontroller Reference Manual Rev 2 Freescale Semiconductor 713 ADC system...
Страница 716: ...MPC5606BK Microcontroller Reference Manual Rev 2 714 Freescale Semiconductor This page is intentionally left blank...
Страница 787: ...MPC5606BK Microcontroller Reference Manual Rev 2 Freescale Semiconductor 787 Memory...
Страница 788: ...MPC5606BK Microcontroller Reference Manual Rev 2 788 Freescale Semiconductor This page is intentionally left blank...
Страница 893: ...MPC5606BK Microcontroller Reference Manual Rev 2 Freescale Semiconductor 893 Integrity...
Страница 894: ...MPC5606BK Microcontroller Reference Manual Rev 2 894 Freescale Semiconductor This page is intentionally left blank...
Страница 943: ...MPC5606BK Microcontroller Reference Manual Rev 2 Freescale Semiconductor 943 Debug...
Страница 944: ...MPC5606BK Microcontroller Reference Manual Rev 2 944 Freescale Semiconductor This page is intentionally left blank...