EP3C16F256I7N Altera, EP3C16F256I7N Datasheet - Page 92

• Manufacturer Part Number: EP3C16F256I7N
• Description: Cyclone III
• Manufacturer: Altera

5–28
Figure 5–23. Scan Chain Bit Order
Cyclone III Device Handbook, Volume 1
DATAOUT
HB
LB
0
0
HB
Table 5–4. Cyclone III Device Family PLL Reprogramming Bits (Part 2 of 2)
Figure 5–22
Figure 5–22. PLL Component Scan Chain Order
Figure 5–23
Cyclone III device family PLLs.
LB
1
1
N
Charge Pump
Loop Filter
Total number of bits:
Notes to
(1) LSB bit for C4 low-count value is the first bit shifted into the scan chain.
(2) These two control bits include rbypass, for bypassing the counter, and rselodd, to select the output clock
(3) MSB bit for loop filter is the last bit shifted into the scan chain.
Block Name
duty cycle.
DATAIN
HB
Table
LB
2
2
(3)
shows the scan chain order of the PLL components.
shows the scan chain bit order sequence for one PLL post-scale counter in
5–4:
HB
LB
3
3
DATAOUT
MSB
HB
LB
4
4
Counter
LF
16
9
9
HB
CP
LB
5
5
Chapter 5: Clock Networks and PLLs in the Cyclone III Device Family
C4
LSB
HB
LB
6
6
Number of Bits
HB
LB
7
7
C3
N
Other
2
0
0
(2)
HB
LB
8
8
© December 2009 Altera Corporation
C2
M
LB
HB
9
9
PLL Reconfiguration
rselodd
Total
C0
C1
rbypass
144
18
9
9
DATAIN