M054LAN Datasheet, PDF (20/64 Pages) Nuvotem Talema – ARM Cortex™-M0 32-BIT MICROCONTROLLER

M052/M054 Data Sheet
6.2 System Manager
6.2.1 Overview
The following functions are included in system manager section
„ System Resets
„ System Memory Map
„ System management registers for Part Number ID, chip reset and on-chip module reset ,
multi-functional pin control
„ System Timer (SysTick)
„ Nested Vectored Interrupt Controller (NVIC)
„ System Control registers
6.2.2 System Reset
The system reset includes one of the list below event occurs. For these reset event flags can be
read by RSTRC register.
„ The Power-On Reset (POR)
„ The low level on the /RESET pin
„ Watchdog Time Out Reset (WDT)
„ Low Voltage Reset (LVR)
„ Brownout-Detected Reset (BOD)
„ CPU Reset
„ System Reset
6.2.3 System Power Architecture
In this device, the power architecture is divided into two segments.
„ Analog power from AVDD and AVSS provides the power for analog module operation.
„ Digital power from VDD and VSS supplies the power to the internal regulator which
provides a fixed 2.5V power for digital operation and I/O pins.
The outputs of internal voltage regulator, which is LDO, require an external capacitor which
should be located close to the corresponding pin. The Figure 6–2 shows the power architecture of
this device.
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Publication Release Date: Mar 15, 2011
Revision V1.0