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AT90PWM161 Datasheet(PDF) 41 Page - ATMEL Corporation

Part # AT90PWM161
Description  131 powerful instructions - most single clock cycle execution
PDF  327 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT90PWM161 Datasheet(HTML) 41 Page - ATMEL Corporation

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41
7734Q–AVR–02/12
AT90PWM81/161
5.5.3
PLLCSR - PLL Control and Status Register
• Bit 7..3 – Res: Reserved Bits
These bits are reserved bits in the AT90PWM81/161 and always read as zero.
• Bit 5..2-– PLLF: PLL Factor
The PLLF bits is used to select the multiplication factor of the PLL.
Note:
PLLF3 is used for debug purpose (must be wired).
0
101
32
0
110
64
0
111
128
1
000
256
1
001
Reserved
1
010
Reserved
1
011
Reserved
1
100
Reserved
1
101
Reserved
1
110
Reserved
1
111
Reserved
Table 5-10.
Clock prescaler select. (Continued)
CLKPS3
CLKPS2
CLKPS1
CLKPS0
Clock division factor
Bit
7
65
43
21
0
$29 ($29)
–
–
PLLF3
PLLF2
PLLF1
PLLF0
PLLE
PLOCK
PLLCSR
Read/Write
R
R
R/W
R/W
R/W
R/W
R/W
R
Initial Value
0
0
0
1
0
0
0/1
0
Table 5-11.
PLL multiplication factor.
PLLF3..0
N+2
PLL frequency [MHz]
7-F
Reserved
68
64
57
56
46
48
35
40
24
32
0-1
Reserved



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