ATSAM3X4EA-AU Atmel, ATSAM3X4EA-AU Datasheet - Page 517

• Manufacturer Part Number: ATSAM3X4EA-AU
• Description: ARM Microcontrollers - MCU QFP144,GREEN, IND TEMP, MRL A
• Manufacturer: Atmel

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

27.18.25 SMC Write Protection Control
Name:
Address:
Access:
• WP_EN: Write Protection Enable
0: Disables the Write Protection if WP_KEY corresponds.
1: Enables the Write Protection if WP_KEY corresponds.
• WP_KEY: Write Protection KEY password
Should be written at value 0x534D43 (ASCII code for “SMC”). Writing any other value in this field has no effect.
11057B–ATARM–28-May-12
11057B–ATARM–28-May-12
31
23
15
7
SMC_WPCR
0x400E01E4
Write-only
30
22
14
6
29
21
13
5
28
20
12
4
WP_KEY
WP_KEY
WP_KEY
27
19
11
3
26
18
10
2
25
17
9
1
SAM3X/A
SAM3X/A
WP_EN
24
16
8
0
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