Chapter 2: MAX II Architecture
2–25
I/O Structure
Figure 2–20 shows how a row I/O block connects to the logic array.
Figure 2–20. Row I/O Block Connection to the Interconnect (Note 1)
R4 Interconnects
C4 Interconnects
I/O Block Local
Interconnect
data_out
[6..0]
7
OE
[6..0]
7
LAB
Row
I/O Block
fast_out
[6..0]
7
7
data_in[6..0]
Direct Link
Interconnect
from Adjacent LAB
Direct Link
Interconnect
Row I/O Block
Contains up to
Seven IOEs
to Adjacent LAB
LAB Column
clock [3..0]
LAB Local
Interconnect
Note to Figure 2–20:
(1) Each of the seven IOEs in the row I/O block can have one data_outor fast_outoutput, one OEoutput, and one data_ininput.
© October 2008 Altera Corporation
MAX II Device Handbook
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