ATSAM3X4EA-AU Atmel, ATSAM3X4EA-AU Datasheet - Page 556
ATSAM3X4EA-AU
Manufacturer Part Number
ATSAM3X4EA-AU
Description
ARM Microcontrollers - MCU QFP144,GREEN, IND TEMP, MRL A
Manufacturer
Atmel
Datasheet
1.ATSAM3X8EA-AU.pdf
(1467 pages)
Specifications of ATSAM3X4EA-AU
Rohs
yes
Core
ARM Cortex M3
Processor Series
SAM3X
Data Bus Width
32 bit
Maximum Clock Frequency
84 MHz
Program Memory Size
256 KB
Data Ram Size
64 KB
On-chip Adc
Yes
Operating Supply Voltage
2.4 V to 3.6 V
Operating Temperature Range
- 40 C to +85 C
Package / Case
LQFP-144
Mounting Style
SMD/SMT
Factory Pack Quantity
60
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SAM3X/A
SAM3X/A
If a write access to the protected registers is detected, then the WPVS flag in the PMC Write
Protect Status Register (PMC_WPSR) is set and the field WPVSRC indicates in which register
the write access has been attempted.
The WPVS flag is reset by writing the PMC Write Protect Mode Register (PMC_WPMR) with the
appropriate access key, WPKEY.
The protected registers are:
“PMC System Clock Enable Register”
“PMC System Clock Disable Register”
“PMC Peripheral Clock Enable Register 0”
“PMC Peripheral Clock Disable Register 0”
“PMC Clock Generator Main Oscillator Register”
“PMC Clock Generator PLLA Register”
“PMC UTMI Clock Configuration Register”
“PMC Master Clock Register”
“PMC USB Clock Register”
“PMC Programmable Clock Register”
“PMC Fast Startup Mode Register”
“PMC Fast Startup Polarity Register”
“PMC Peripheral Clock Enable Register 1”
“PMC Peripheral Clock Disable Register 1”
11057B–ATARM–28-May-12
11057B–ATARM–28-May-12
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