EP3C16F256I7N Altera, EP3C16F256I7N Datasheet - Page 157

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

Figure 7–3. Column I/O Block Connection to the Interconnect for LE-Rich Devices (EP3C5, EP3C10, EP3C25,
EP3C55, EP3C80, and EP3C120)
Notes to
(1)
(2)
Altera Corporation-Preliminary
March 2007
R4 & R24 Interconnects
The 32 data and control signals are used to support up to four IOEs per two column I/O blocks.
Each of the four IOEs in the column I/O block can have two io_datain (combinational or registered) inputs.
Figure
Local Interconnect
from Logic Array (1)
Interconnect
7–3:
LAB Local
Control Signals
LAB
I/O Block
32 Data &
C4 Interconnect
C16 Interconnect
Column I/O Block
32
LAB
Interconnect
LAB Local
Cyclone III Device Handbook, Volume 1
IO_dataina[3:0]
IO_datainb[3:0](2)
C4 Interconnect
C16 Interconnect
Cyclone III I/O Element
Column I/O
Block Contains
up to Four IOEs
io_clk[5..0]
LAB
Interconnect
LAB Local
7–5