AT91SAM7S32-AI ATMEL [ATMEL Corporation], AT91SAM7S32-AI Datasheet - Page 41

• Manufacturer Part Number: AT91SAM7S32-AI
• Description: AT91 ARM Thumb-based Microcontrollers
• Manufacturer: ATMEL [ATMEL Corporation]

Reset Controller (RSTC)
Overview
Block Diagram
Figure 13. Reset Controller Block Diagram
6071A–ATARM–28-Oct-04
Main Supply
WDRPROC
bod_rst_en
brown_out
POR
wd_fault
NRST
The Reset Controller (RSTC), based on power-on reset cells, handles all the resets of the sys-
tem without any external components. It reports which reset occurred last.
The Reset Controller also drives independently or simultaneously the external reset and the
peripheral and processor resets.
A brownout detection is also available to prevent the processor from falling into an unpredict-
able state.
nrst_out
Brownout
Manager
Counter
Startup
Manager
Reset Controller
NRST
user_reset
exter_nreset
bod_reset
AT91SAM7S32 Preliminary
SLCK
Manager
Reset
State
rstc_irq
proc_nreset
periph_nreset
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