參數(shù)資料
型號(hào): EPF8482A
英文描述: Programmable Logic
中文描述: 可編程邏輯
文件頁(yè)數(shù): 56/61頁(yè)
文件大?。?/td> 979K
代理商: EPF8482A
6
Altera Corporation
FLEX 8000 Programmable Logic Device Family Data Sheet
Logic Array Block
A logic array block (LAB) consists of eight LEs, their associated carry and
cascade chains, LAB control signals, and the LAB local interconnect. The
LAB provides the coarse-grained structure of the FLEX 8000 architecture.
This structure enables FLEX 8000 devices to provide efficient routing,
high device utilization, and high performance. Figure 2 shows a block
diagram of the FLEX 8000 LAB.
Figure 2. FLEX 8000 Logic Array Block
Carry-In and
Cascade-In
from LAB
on Left
Dedicated
Inputs
LE1
4
LE8
4
LE2
4
2
LE3
4
LE4
4
LE5
4
LE6
4
LE7
4
Column
Interconnect
Row Interconnect
8
24
LAB Local
Interconnect
(32 channels)
8
Column-to-Row
Interconnect
Carry-Out and
Cascade-Out
to LAB on Right
8
16
LAB Control
Signals
See Figure 8
for details.
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