AT91SAM9G10-EK Atmel, AT91SAM9G10-EK Datasheet - Page 93
AT91SAM9G10-EK
Manufacturer Part Number
AT91SAM9G10-EK
Description
KIT DEV FOR SAM9G10 ARM
Manufacturer
Atmel
Type
MCUr
Specifications of AT91SAM9G10-EK
Contents
Board, Cables, Power Supply
Silicon Manufacturer
Atmel
Core Architecture
AVR
Kit Contents
Board
Svhc
No SVHC (15-Dec-2010)
Mcu Supported Families
AT91SAM9G10, ARM926EJ-S
Tool / Board Applications
Microcontroller
Rohs Compliant
Yes
For Use With/related Products
*
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
- Current page: 93 of 730
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14.3.6
Figure 14-9.
6462A–ATARM–03-Jun-09
if (URSTEN = 0) and
Peripheral Access
Reset Controller Status Register
(URSTIEN = 1)
Reset Controller Status and Interrupt
URSTS
NRSTL
rstc_irq
NRST
MCK
The Reset Controller status register (RSTC_SR) provides several status fields:
resynchronization
• When in Watchdog Reset:
• RSTTYP field: This field gives the type of the last reset, as explained in previous sections.
• SRCMP bit: This field indicates that a Software Reset Command is in progress and that no
• NRSTL bit: The NRSTL bit of the Status Register gives the level of the NRST pin sampled on
• URSTS bit: A high-to-low transition of the NRST pin sets the URSTS bit of the RSTC_SR
further software reset should be performed until the end of the current one. This bit is
automatically cleared at the end of the current software reset.
each MCK rising edge.
register. This transition is also detected on the Master Clock (MCK) rising edge (see
14-9). If the User Reset is disabled (URSTEN = 0) and if the interruption is enabled by the
URSTIEN bit in the RSTC_MR register, the URSTS bit triggers an interrupt. Reading the
RSTC_SR status register resets the URSTS bit and clears the interrupt.
2 cycle
– The processor reset is active and so a Software Reset cannot be programmed.
– A User Reset cannot be entered.
resynchronization
2 cycle
RSTC_SR
AT91SAM9G10
read
Figure
93
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