2–28
Chapter 2: MAX V Architecture
I/O Structure
I/O Blocks
The IOEs are located in I/O blocks around the periphery of the MAX V device. There
are up to seven IOEs per row I/O block and up to four IOEs per column I/O block.
Each column or row I/O block interfaces with its adjacent LAB and MultiTrack
interconnect to distribute signals throughout the device. The row I/O blocks drive
row, column, or DirectLink interconnects. The column I/O blocks drive column
interconnects.
1
5M40Z, 5M80Z, 5M160Z, and 5M240Z devices have a maximum of five IOEs per row
I/O block.
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.
MAX V Device Handbook
December 2010 Altera Corporation
ALTERA [ ALTERA CORPORATION ]
