參數(shù)資料
型號: LC4000B
廠商: Lattice Semiconductor Corporation
英文描述: 3.3V/2.5V/1.8V In-System Programmable SuperFAST High density PDLs
中文描述: 3.3V/2.5V/1.8V在系統(tǒng)可編程超快高密度PDLs
文件頁數(shù): 9/91頁
文件大小: 851K
代理商: LC4000B
Lattice Semiconductor
ispMACH 4000V/B/C/Z Family Data Sheet
9
Output Routing Pool (ORP)
The Output Routing Pool allows macrocell outputs to be connected to any of several I/O cells within an I/O block.
This provides greater
fl
exibility in determining the pinout and allows design changes to occur without affecting the
pinout. The output routing pool also provides a parallel capability for routing macrocell-level OE product terms. This
allows the OE product term to follow the macrocell output as it is switched between I/O cells. Additionally, the out-
put routing pool allows the macrocell output or true and complement forms of the 5-PT bypass signal to bypass the
output routing multipliers and feed the I/O cell directly. The enhanced ORP of the ispMACH 4000 family consists of
the following elements:
Output Routing Multiplexers
OE Routing Multiplexers
Output Routing Pool Bypass Multiplexers
Figure 7 shows the structure of the ORP from the I/O cell perspective. This is referred to as an ORP slice. Each
ORP has as many ORP slices as there are I/O cells in the corresponding I/O block.
Figure 7. ORP Slice
Output Routing Multiplexers
The details of connections between the macrocells and the I/O cells vary across devices and within a device
dependent on the maximum number of I/Os available. Tables 5-9 provide the connection details.
Table 6. ORP Combinations for I/O Blocks with 8 I/Os
I/O Cell
Available Macrocells
I/O 0
M0, M1, M2, M3, M4, M5, M6, M7
I/O 1
M2, M3, M4, M5, M6, M7, M8, M9
I/O 2
M4, M5, M6, M7, M8, M9, M10, M11
I/O 3
M6, M7, M8, M9, M10, M11, M12, M13
I/O 4
M8, M9, M10, M11, M12, M13, M14, M15
I/O 5
M10, M11, M12, M13, M14, M15, M0, M1
I/O 6
M12, M13, M14, M15, M0, M1, M2, M3
I/O 7
M14, M15, M0, M1, M2, M3, M4, M5
Output Routing Multiplexer
OE Routing Multiplexer
ORP
Bypass
Multiplexer
From Macrocell
From PTOE
To I/O
Cell
To I/O
Cell
Output
OE
5-PT Fast Path
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相關代理商/技術(shù)參數(shù)
參數(shù)描述
LC4000C 制造商:LATTICE 制造商全稱:Lattice Semiconductor 功能描述:3.3V/2.5V/1.8V In-System Programmable SuperFAST High density PDLs
LC4000V 制造商:LATTICE 制造商全稱:Lattice Semiconductor 功能描述:3.3V/2.5V/1.8V In-System Programmable SuperFAST High density PDLs
LC4000Z 制造商:LATTICE 制造商全稱:Lattice Semiconductor 功能描述:3.3V/2.5V/1.8V In-System Programmable SuperFAST High density PDLs
LC4001B 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Logic IC
LC4001BM 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Logic IC