ATSAM3X4EA-AU Atmel, ATSAM3X4EA-AU Datasheet - Page 1062

• 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

39.7.40
Name:
Address:
Access:
This register can only be written if the bits WPSWS3 and WPHWS3 are cleared in
page
Only the first 16 bits (channel counter size) are significant.
• CPRD: Channel Period
If the waveform is left-aligned, then the output waveform period depends on the channel counter source clock and can be
calculated:
If the waveform is center-aligned, then the output waveform period depends on the channel counter source clock and can
be calculated:
1062
1062
1053.
– By using the PWM master clock (MCK) divided by an X given prescaler value (with X being 1, 2, 4, 8, 16, 32,
– By using the PWM master clock (MCK) divided by one of both DIVA or DIVB divider, the formula becomes,
– By using the PWM master clock (MCK) divided by an X given prescaler value (with X being 1, 2, 4, 8, 16, 32,
– By using the PWM master clock (MCK) divided by one of both DIVA or DIVB divider, the formula becomes,
31
23
15
–
7
64, 128, 256, 512, or 1024). The resulting period formula will be:
respectively:
64, 128, 256, 512, or 1024). The resulting period formula will be:
------------------------------------------ -
respectively:
----------------------------------------------------- -
------------------------------- -
------------------------------------------ -
2
2
X
CRPD
SAM3X/A
SAM3X/A
PWM Channel Period Register
MCK
X
CPRD
CPRD
MCK
MCK
PWM_CPRDx [x=0..7]
0x4009420C [0], 0x4009422C [1], 0x4009424C [2], 0x4009426C [3], 0x4009428C [4], 0x400942AC [5],
0x400942CC [6], 0x400942EC [7]
Read-write
MCK
CPRD
DIVA
DIVA
30
22
14
–
6
or
or
------------------------------------------ -
CRPD
----------------------------------------------------- -
2
MCK
CPRD
DIVB
MCK
29
21
13
–
5
DIVB
28
20
12
–
4
CPRD
CPRD
CPRD
27
19
11
–
3
“PWM Write Protect Status Register” on
26
18
10
–
2
25
17
–
9
1
11057B–ATARM–28-May-12
11057B–ATARM–28-May-12
24
16
–
8
0