參數(shù)資料
型號(hào): EPM9400
廠商: Altera Corporation
英文描述: Programmable Logic Device Family(MAX9000可編程邏輯系列器件)
中文描述: 可編程邏輯器件系列(MAX9000可編程邏輯系列器件)
文件頁(yè)數(shù): 11/41頁(yè)
文件大?。?/td> 604K
代理商: EPM9400
Altera Corporation
11
MAX 9000 Programmable Logic Device Family Data Sheet
Parallel Expanders
Parallel expanders are unused product terms that can be allocated to a
neighboring macrocell to implement fast, complex logic functions.
Parallel expanders allow up to 20 product terms to directly feed the
macrocell
OR
logic, with five product terms provided by the macrocell and
15 parallel expanders provided by neighboring macrocells in the LAB.
Figure 5
shows how parallel expanders can feed the neighboring
macrocell.
Figure 5. MAX 9000 Parallel Expanders
Preset
Clock
Clear
Product-
Term
Select
Matrix
Preset
Clock
Clear
Product-
Term
Select
Matrix
Macrocell
Product-
Term Logic
From
Previous
Macrocell
To Next
Macrocell
LAB Local
Array
Macrocell
Product-
Term Logic
33 Row
FastTrack
Interconnect
Signals
16 Local
Feedbacks
16 Shared
Expanders
Unused product terms in a macrocell can be allocated to a neighboring macrocell.
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