EP2S15 ALTERA [Altera Corporation], EP2S15 Datasheet - Page 60

• Manufacturer Part Number: EP2S15
• Description: Stratix II Device Family
• Manufacturer: ALTERA [Altera Corporation]

PLLs & Clock Networks
Figure 2–35. EP2S15 & EP2S30 Device I/O Clock Groups
2–52
Stratix II Device Handbook, Volume 1
IO_CLKH[7:0]
IO_CLKG[7:0]
8
8
8
IOE clocks have row and column block regions that are clocked by eight
I/O clock signals chosen from the 24 quadrant clock resources.
Figures 2–35
regions.
the Quadrant
the Quadrant
24 Clocks in
24 Clocks in
IO_CLKA[7:0]
IO_CLKF[7:0]
and
8
2–36
show the quadrant relationship to the I/O clock
IO_CLKB[7:0]
IO_CLKE[7:0]
8
the Quadrant
the Quadrant
24 Clocks in
24 Clocks in
8
Altera Corporation
8
8
I/O Clock Regions
IO_CLKC[7:0]
IO_CLKD[7:0]
May 2007