SAM3A8C Atmel Corporation, SAM3A8C Datasheet - Page 232
SAM3A8C
Manufacturer Part Number
SAM3A8C
Description
Manufacturer
Atmel Corporation
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Figure 13-7.
232
232
if (URSTEN = 0) and
SAM3X/A
SAM3X/A
Peripheral Access
(URSTIEN = 1)
Reset Controller Status and Interrupt
URSTS
NRSTL
rstc_irq
NRST
MCK
resynchronization
• 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
13-7). 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
resynchronization
2 cycle
RSTC_SR
read
11057A–ATARM–17-Feb-12
11057A–ATARM–17-Feb-12
Figure
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