ATSAM3X4EA-AU Atmel, ATSAM3X4EA-AU Datasheet - Page 567

• 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

29.2.15.9
Name:
Address:
Access:
This register can only be written if the WPEN bit is cleared in
• MAINF: Main Clock Frequency
Gives the number of Main Clock cycles within 16 Slow Clock periods.
• MAINFRDY: Main Clock Ready
0 = MAINF value is not valid or the Main Oscillator is disabled .
1 = The Main Oscillator has been enabled previously and MAINF value is available.
11057B–ATARM–28-May-12
11057B–ATARM–28-May-12
31
23
15
–
–
7
PMC Clock Generator Main Clock Frequency Register
CKGR_MCFR
0x400E0624
Read-only
30
22
14
–
–
6
29
21
13
–
–
5
28
20
12
–
–
4
MAINF
MAINF
“PMC Write Protect Mode Register”
27
19
11
–
–
3
26
18
10
–
–
2
.
25
17
–
–
9
1
SAM3X/A
SAM3X/A
MAINFRDY
24
16
–
8
0
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