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TS128MDOM40H-S  TS122  TS118STR  TS12  TS122PTR  TS122STR  TS120P  TS118S  TS120PTR  TS122S  
CLK11_4P Cyclone III Device Handbook
Prototype PCB
Part No.:   CLK11_4P
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Description:   Cyclone III Device Handbook
File Size :   7302 K    
Page : 274 Pages
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Maker   ALTERA [ ALTERA CORPORATION ]http://www.altera.com
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5–30
Chapter 5: Clock Networks and PLLs in the Cyclone III Device Family
PLL Reconfiguration
shows the scan chain bit order sequence for one PLL post-scale counter in
Cyclone III device family PLLs.
Figure 5–23. Scan Chain Bit Order
HB
0
HB
1
HB
2
HB
3
HB
4
HB
5
HB
6
HB
7
HB
8
HB
9
rbypass
DATAIN
LB
DATAOUT
0
LB
1
LB
2
LB
3
LB
4
LB
5
LB
6
LB
7
LB
8
LB
9
rselodd
f
For more information about the PLL scan chain, refer to the
application note.
Charge Pump and Loop Filter
You can reconfigure the charge pump and loop filter settings to update the PLL
bandwidth in real time.
through
list the possible settings for
charge pump (ICP), loop filter resistor (R), and capacitor (C) values for Cyclone III
device family PLLs.
Table 5–5. Charge Pump Bit Control
CP[2]
0
0
0
1
CP[1]
0
0
1
1
CP[0]
0
1
1
1
Setting (Decimal)
0
1
3
7
Table 5–6. Loop Filter Resistor Value Control
LFR[4]
0
0
0
0
1
1
1
1
1
1
1
LFR[3]
0
0
0
1
0
0
0
1
1
1
1
LFR[2]
0
0
1
0
0
0
1
0
0
1
1
LFR[1]
0
1
0
0
0
1
0
0
1
0
1
LFR[0]
0
1
0
0
0
1
0
0
1
0
0
Setting
(Decimal)
0
3
4
8
16
19
20
24
27
28
30
Cyclone III Device Handbook
Volume 1
July 2012 Altera Corporation
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