AT91SAM7X128 Atmel, AT91SAM7X128 Datasheet - Page 66
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AT91SAM7X128
Manufacturer Part Number
AT91SAM7X128
Description
MCU 32-Bit 91S ARM7TDMI RISC 128KB Flash 1.8V/3.3V 100-Pin LQFP
Manufacturer
Atmel
Datasheet
1.AT91SAM7X512-AU-999.pdf
(687 pages)
Specifications of AT91SAM7X128
Package
100LQFP
Device Core
ARM7TDMI
Family Name
91S
Maximum Speed
55 MHz
Ram Size
32 KB
Program Memory Size
128 KB
Operating Supply Voltage
1.8|3.3 V
Data Bus Width
32 Bit
Program Memory Type
Flash
Number Of Programmable I/os
62
Interface Type
CAN/Ethernet/SPI/I2S/TWI/USART/USB
On-chip Adc
8-chx10-bit
Operating Temperature
-40 to 85 °C
Number Of Timers
3
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13.2.5
66
AT91SAM7X512/256/128 Preliminary
Reset State Priorities
The Reset State Manager manages the following priorities between the different reset sources,
given in descending order:
Particular cases are listed below:
• Power-up Reset
• Brownout Reset
• Watchdog Reset
• Software Reset
• User Reset
• When in User Reset:
• When in Software Reset:
• When in Watchdog Reset:
– A watchdog event is impossible because the Watchdog Timer is being reset by the
– A software reset is impossible, since the processor reset is being activated.
– A watchdog event has priority over the current state.
– The NRST has no effect.
– The processor reset is active and so a Software Reset cannot be programmed.
– A User Reset cannot be entered.
proc_nreset signal.
6120H–ATARM–17-Feb-09
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