at91sam9263 ATMEL Corporation, at91sam9263 Datasheet - Page 734

• Manufacturer Part Number: at91sam9263
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

38.6.11
Register Name:
Access Type:
Only the first 16 bits (internal channel counter size) are significant.
• CPRD: Channel Period
If the waveform is left-aligned, then the output waveform period depends on the counter source clock and can be
calculated:
If the waveform is center-aligned, then the output waveform period depends on the counter source clock and can be
calculated:
734
– By using the Master Clock (MCK) divided by an X given prescaler value (with X being 1, 2, 4, 8, 16, 32, 64, 128,
– By using a Master Clock divided by one of both DIVA or DIVB divider, the formula becomes, respectively:
– By using the Master Clock (MCK) divided by an X given prescaler value (with X being 1, 2, 4, 8, 16, 32, 64, 128,
– By using a Master Clock divided by one of both DIVA or DIVB divider, the formula becomes, respectively:
31
23
15
7
256, 512, or 1024). The resulting period formula will be:
256, 512, or 1024). The resulting period formula will be:
(
---------------------------------------- -
(
--------------------------------------------------- -
(
------------------------------ -
(
----------------------------------------- -
2
2
X CPRD
CRPD DIVA
AT91SAM9263 Preliminary
×
×
PWM Channel Period Register
×
MCK
X CPRD
CPRD DIVA
MCK
MCK
×
MCK
×
)
×
)
30
22
14
)
PWM_CPRDx
6
Read/Write
or
)
or
(
--------------------------------------------- -
CRPD DIVAB
(
--------------------------------------------------- -
2 CPRD
×
MCK
×
MCK
29
21
13
5
×
DIVB
)
)
28
20
12
4
CPRD
CPRD
CPRD
CPRD
27
19
11
3
26
18
10
2
25
17
9
1
6249D–ATARM–20-Dec-07
24
16
8
0