MAX 9000 Programmable Logic Device Family Data Sheet
Figure 1. MAX 9000 Device Block Diagram
I/O Cell
(IOC)
IOC
IOC
IOC
IOC
IOC
IOC
IOC
IOC
Logic Array
Block (LAB)
IOC
FastTrack
Interconnect
IOC
IOC
IOC
Macrocell
LAB Local Array
IOC
IOC
IOC
IOC
Logic Array Blocks
The MAX 9000 architecture is based on linking high-performance, flexible
logic array modules called logic array blocks (LABs). LABs consist of
16-macrocell arrays that are fed by the LAB local array, as shown in
Figure 2 on page 7.
Multiple LABs are linked together via the FastTrack
Interconnect, a series of fast, continuous channels that run the entire
length and width of the device. The I/O pins are supported by I/O cells
(IOCs) located at the end of each row (horizontal) and column (vertical)
path of the FastTrack Interconnect.
Each LAB is fed by 33 inputs from the row interconnect and 16 feedback
signals from the macrocells within the LAB. All of these signals are
available within the LAB in their true and inverted form. In addition,
16 shared expander product terms (“expanders”) are available in their
inverted form, for a total of 114 signals that feed each product term in the
LAB. Each LAB is also fed by two low-skew global clocks and one global
clear that can be used for register control signals in all 16 macrocells.
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